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A storage bin has the shape of a cylinder with a conical top. What is the volume of the storage bin if
its radius is r = 4.9 ft, the height of the cylindrical portion is h = 9.7 ft, and the overall height is
H = 16.3 ft?
Volume (to the nearest tenth)

Answers

Answer 1

Answer:

Step-by-step explanation:

To find the volume of the storage bin, we need to calculate the volumes of both the cylindrical portion and the conical top, and then add them together.

The volume of the cylindrical portion can be calculated using the formula:

V_cylinder = π * r^2 * h

where r is the radius and h is the height of the cylindrical portion.

Substituting the given values, we have:

V_cylinder = π * (4.9 ft)^2 * 9.7 ftV_cylinder ≈ 748.07 ft³ (rounded to two decimal places)

The volume of the conical top can be calculated using the formula:

V_cone = (1/3) * π * r^2 * H_cone

where r is the radius and H_cone is the height of the conical top.

The height of the conical top can be obtained by subtracting the height of the cylindrical portion from the overall height:

H_cone = H - h = 16.3 ft - 9.7 ft = 6.6 ft

Substituting the given values, we have:

V_cone = (1/3) * π * (4.9 ft)^2 * 6.6 ftV_cone ≈ 243.24 ft³ (rounded to two decimal places)

To find the total volume, we add the volume of the cylindrical portion and the volume of the conical top:

Total volume = V_cylinder + V_cone

Total volume ≈ 748.07 ft³ + 243.24 ft³

Total volume ≈ 991.31 ft³ (rounded to one decimal place)

Therefore, the volume of the storage bin is approximately 991.3 ft³ (rounded to the nearest tenth).

Answer 2

Thus the required volume is, 975.05  ft³

Given that,

radius = r = 4.9

Height of cylindrical potion = h = 9.7

Overall height = 16.3

Since,

total height = Height of the cylinder + height of the cone

Height of the cone = 16.3 - 9.7

                                = 6.6 m

Since we know that,

Volume of a cylinder = πr² h

⇒ π (4.9)²(9.7)

⇒ 731.29 ft³

Since we also know that

Volume of a cone = (1/3)πr² h

= 731.29/3

= 243.76  ft³

Volume of the bin = volume of cone + volume of cylinder

= 731.29 ft³  + 243.76  ft³

Hence the volume be,

= 975.05  ft³

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Related Questions

What are the base angles z & j of the equal sided triangle below? Type in the single angle only - not the sum of the two! numerical answer only

Answers

Answer:

58° + x = 180°

x = y = 122°

z = j, so 122° + 2z = 180°

2z = 58°

z = j = 29°

graph the line passing through (−4,−1) whose slope is m=-4/5

Answers

Answer:

[tex]y=-\frac{4}{5}x-\frac{21}{5}[/tex]

Step-by-step explanation:

The fastest way is to use point-slope form with [tex]m=-\frac{4}{5}[/tex] and [tex](x_1,y_1)=(-4,-1)[/tex]:

[tex]y-y_1=m(x-x_1)\\y-(-1)=-\frac{4}{5}(x-(-4))\\y+1=-\frac{4}{5}(x+4)\\y+1=-\frac{4}{5}x-\frac{16}{5}\\y=-\frac{4}{5}x-\frac{21}{5}[/tex]

To graph the line passing through (-4,-1) with slope m = -4/5, we can use the slope-intercept form of the equation of a line, which is:

y = mx + b

where m is the slope and b is the y-intercept.

Substituting m = -4/5, x = -4, and y = -1, we can solve for b:

-1 = (-4/5)(-4) + b

-1 = 3.2 + b

b = -4.2

Therefore, the equation of the line is:

y = (-4/5)x - 4.2

To graph the line, we can plot the given point (-4,-1) and then use the slope to find additional points. Since the slope is negative, the line will slope downwards from left to right. We can find the y-intercept by setting x = 0 in the equation:

y = (-4/5)x - 4.2

y = (-4/5)(0) - 4.2

y = -4.2

So the y-intercept is (0,-4.2).

Using this point and the given point (-4,-1), we can draw a straight line passing through both points.

Here is a rough sketch of the graph:

     |

     |

     |     *

     |    /

     |   /

     |  /

-----*--------

     |

     |

     |

     |

     |

The point (-4,-1) is marked with an asterisk (*), and the y-intercept (0,-4.2) is marked with a dash. The line passing through these two points is the graph of the equation y = (-4/5)x - 4.2.

Choose the correct graph of the given system of equations. y − 2x = −1 x + 3y = 4 graph of two lines, one with a positive slope and one with a negative slope, that intersect at the point negative 1, 1 with text on graph that reads One Solution negative 1, 1 graph of two lines that intersect at the point 1, 1 with text on graph that reads One Solution 1, 1 graph of two lines on top of each other with text on graph that reads Infinitely Many Solutions

Answers

Answer:The correct graph for the given system of equations is:

graph of two lines, one with a positive slope and one with a negative slope, that intersect at the point negative 1, 1 with text on graph that reads One Solution -1, 1.

Step-by-step explanation:

How does insufficient finding contribute to poor service delivery​

Answers

Insufficient funding creates systemic barriers that hinder service providers from delivering services at the desired level of quality, accessibility, and effectiveness.

What is insufficient funding?

Lack of funds indicates a lack of financial resources to fully provide the tools, materials, and infrastructure required to offer services. This may lead to a lack of necessary equipment, resources, or technology needed to deliver effective and efficient services.

Lack of funds frequently results in understaffing or the inability to recruit and retain a sufficient pool of qualified workers. Overloading current employees due to insufficient personnel numbers can result in increasing workloads, burnout, and decreased productivity.

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Find the area of pentagon ABCDE.

Answers

Translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the x-axis.

We are given Pentagon ABCDE, with vertices A (-4,-2) , at B(-6,-3) at C (-5,-6), at D (-2,-5) at E (-2,-3)

and the pentagon A'B'C'D'E' with vertices as:

A'(3,1) , B'(1,2) , C'(2,5) , D'(5,4) and E'(5,2).

Clearly we could observe that the image is formed by the translation and reflection of the pentagon ABCDE.

First the Pentagon is translated by the rule:

(x,y) → (x+7,y+1) so that the pentagon is shifted to the fourth coordinate  and then it is reflected across the x-axis to get the transformed figure in the first coordinate plane as Pentagon A'B'C'D'E'.

Hence, translated according to the rule (x, y) →(x + 7, y + 1) and reflected across the x-axis.

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"Your question is incomplete, probably the complete question/missing part is:"

Pentagon ABCDE and pentagon A'B'C'D'E' are shown on the coordinate plane below:

Pentagon ABCDE and pentagon A prime B prime C prime D prime E prime on the coordinate plane with ordered pairs at A negative 5,

Which two transformations are applied to pentagon ABCDE to create A'B'C'D'E'?

Translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the y-axis.

Translated according to the rule (x, y) →(x + 2, y + 8) and reflected across the x-axis.

Translated according to the rule (x, y) →(x + 2, y + 8) and reflected across the y-axis.

Translated according to the rule (x, y) →(x + 8, y + 2) and reflected across the x-axis.

the nth term in a sequence is tn=5n + 3. Calculate the 12th and 24th terms, t12 and t 24

Answers

Answer:

63 and 123

-----------------------

Substitute 12 and 24 for n into formula and calculate.

[tex]t_{12}=5*12+3=60 + 3=63[/tex][tex]t_{24}=5*24+3=120 + 3=123[/tex]

So, the 12th term is 63 and 24th term is 123.

You are contracted to fabricate a gate with specifications shown below. What angle are the bars placed in the top arc so they are equally spaced between bars?
18 degrees

30 degrees

36 degrees

25 degrees

Answers

Answer:

The correct answer is 30 degrees.

The united states of American 2020 Presidental candidates need your help caculating what is the probabilty that they can win the election.​

Answers

The Probabilities are:

1. 3/10, 0.3, 30%

2. 7/10, 0.7, 70%

3. 9/10, 0.9, 90%

4. 1/10, 0.1, 10%

From the data,

Total people = 20

Number of Female Candidate = 6

Number of Male Candidate = 6

1. Probability of Women could win

= 6/20

= 3/10

In decimal = 0.3

In Percentage = 30%

2. Probability of Men could win

= 14/20

= 7/10

In decimal = 0.7

In Percentage = 70%

3. Probability of Democrat win

= 18/20

= 9/10

In decimal = 0.9

In Percentage = 90%

4. Probability of Republican win

= 2/20

= 1/10

In decimal = 0.1

In Percentage = 10%

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Given the following definitions: U = {1, 2, 3, 4, 5, 6, 7} A = {1, 2, 4, 5} B = {1, 3, 5, 7} How many elements are in A' ∩ B ? Your Answer:

Answers

There are two elements in A' ∩ B.

The given sets are: U = {1, 2, 3, 4, 5, 6, 7}, A = {1, 2, 4, 5}, B = {1, 3, 5, 7}To find the number of elements in A' ∩ B, we first need to find the complement of A,

which is the set of all elements that are not in A.Complement of A: A' = {3, 6, 7}

Now, we need to find the intersection of A' and B.Intersection of A' and B: A' ∩ B = {3, 7}

Therefore, there are two elements in A' ∩ B, which are 3 and 7.

To summarize, we have U = {1, 2, 3, 4, 5, 6, 7}, A = {1, 2, 4, 5}, and B = {1, 3, 5, 7}. The complement of A is A' = {3, 6, 7}.

The intersection of A' and B is A' ∩ B = {3, 7}.

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Triangle with one square corner

Answers

Right angle triangle

What is the meaning of "The set of all functions from X to Y"?

Answers

The set of all functions from X to Y, mathematicians can explore the relationships and Transformations between different sets.

"The set of all functions from X to Y" refers to the collection or group of all possible functions that can be defined from the set X to the set Y. In mathematics, a function is a relation between two sets, where each element in the first set (X) is associated with a unique element in the second set (Y).

When we talk about the set of all functions from X to Y, we are considering all the different ways in which elements from X can be mapped or related to elements in Y. Each function within this set represents a distinct mapping or correspondence between the elements of X and Y.

The set of all functions from X to Y can be denoted as F(X, Y) or sometimes written as Y^X, emphasizing that it represents the power set or the collection of all possible functions from X to Y.

The elements of this set are individual functions, where each function takes an input from X and produces an output in Y. These functions can have various properties, such as being continuous, differentiable, or having specific algebraic expressions.

By considering the set of all functions from X to Y, mathematicians can explore the relationships and transformations between different sets. This concept plays a fundamental role in various branches of mathematics, including analysis, algebra, topology, and more. It provides a framework for studying functions and their properties, enabling deeper insights into mathematical structures and their interconnections.

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an otter enclosure has a cuboid shaped pool with dimensions 4m by 18m by 7m. a zookeeper decides that there should be at least 30m3 of space in the pool for every otter living in the enclosure. use this information to workout the maximum number of otters that can live in the enclosure

Answers

Answer:

16

Step-by-step explanation:

find volume of pool

(multiply everything together)

since each otter needs 30 m^3 of space, divide the volume by 30

answer comes to 16.8. however since we can't put 0.8 of an otter in the pool, you round down to 16

Determine the measure of x in the diagram below:

x =
NO LINKS

Answers

Answer:

x = 130°

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the two opposite interior angles.

x is an exterior angle of the triangle , then

x = 40° + 90° = 130°

Answer: Your answer is 130

Step-by-step explanation: 40 degrees (bottom right) + 90 degrees (bottom left) = 130 degrees which is the answer.

Hope it helped :D

prove that the points 2, -1+i√3, -1-i√3 for a equilateral triangle on the argand plane. find the length of a side of this trangle

Answers

The points 2, -1+i√3, and -1-i√3 form an equilateral triangle on the Argand plane.

To prove that the points 2, -1+i√3, and -1-i√3 form an equilateral triangle on the Argand plane, we need to show that the distances between these points are equal.

Let's calculate the distances between the points using the distance formula:

Distance between 2 and -1+i√3:

d₁ = |2 - (-1+i√3)|

= |3 - i√3|

= √(3² + (√3)²)

= √(9 + 3)

= √12

= 2√3

Distance between -1+i√3 and -1-i√3:

d₂ = |-1+i√3 - (-1-i√3)|

= |-1+i√3 + 1+i√3|

= |2i√3|

= 2√3

Distance between -1-i√3 and 2:

d₃ = |-1-i√3 - 2|

= |-3 - i√3|

= √((-3)² + (√3)²)

= √(9 + 3)

= √12

= 2√3

We have shown that the distances between the three pairs of points are all equal to 2√3.

Therefore, the points 2, -1+i√3, and -1-i√3 form an equilateral triangle on the Argand plane.

To find the length of a side of this equilateral triangle, we can take any of the distances calculated above. In this case, each side of the triangle has a length of 2√3.

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PLEASE SOMEONE HELP ME !!!!

At the end of October, Allen Springer's check register
balance was $812.45. His bank statement balance was
$624.77. An examination of his statement and check
register showed that an ATM withdrawal of $200 had
not been entered in the register, Check 201 for $92.49
was outstanding, and Check 202 for $80.17 was cashed
but not recorded in the register. Reconcile the checking
account.

Answers

The reconciled balance is $600.13.

Please help me with the question

Answers

A. For the function f(x) = -2x³ - x² + 5x - 1:

- Degree: The degree of a polynomial is the highest power of the variable. In this case, the degree is 3 since the highest power of x is ³ (cubed).

- Leading coefficient: The leading coefficient is the coefficient of the term with the highest power. In this case, the leading coefficient is -2.

- Constant: The constant term is the term without a variable. In this case, the constant term is -1.

B. For the function g(x) = 3(x + 2)(x - 4):

- Degree: The degree of a polynomial is determined by the highest power of the variable. In this case, the degree is 2 since the highest power of x is ² (squared).

- Leading coefficient: The leading coefficient is the coefficient of the term with the highest power. In this case, the leading coefficient is 3.

C. For the function f(x) = -x² + 5x + 3:

- Degree: The degree of a polynomial is determined by the highest power of the variable. In this case, the degree is 2 since the highest power of x is ² (squared).

- Leading coefficient: The leading coefficient is the coefficient of the term with the highest power. In this case, the leading coefficient is -1.

- Constant: The constant term is the term without a variable. In this case, the constant term is 3.

D. For the function f(x) = 3x⁵ - x¹⁰:

- Degree: The degree of a polynomial is determined by the highest power of the variable. In this case, the degree is 10 since the highest power of x is ¹⁰ (tenth power).

- Leading coefficient: The leading coefficient is the coefficient of the term with the highest power. In this case, the leading coefficient is 3.

- Constant: The constant term is the term without a variable. In this case, there is no constant term (it is 0).

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50 POINTS
The Jordans are considering buying a house with a market value of $250,000. The assessed value of the house is a dollars. The annual property tax is $2.45 per $100 of assessed value. What is the property tax on this house?

Answers

To find the property tax on the house, we need to calculate the assessed value and then multiply it by the property tax rate.

The property tax rate is $2.45 per $100 of assessed value, which can be written as 0.0245 (since $2.45 divided by $100 is 0.0245).

To calculate the assessed value, we need to find the assessed value as a percentage of the market value. Let's assume the assessed value is x.

x/100 * $250,000 = $a

We don't have the value of 'a,' so we can't directly calculate the assessed value.

Could you please provide the value of 'a' (the assessed value) so that we can calculate the property tax on the house?

~~~Harsha~~~

Answer:

$4,593.75

Step-by-step explanation:

To find the property tax on the house, we need to first determine the assessed value of the house.

If the market value of the house is $250,000, and the assessed value is a dollars, then we can set up the following equation:

a = 0.75 x 250,000

where 0.75 represents the assessment rate, which is typically a percentage of the market value used to determine the assessed value for tax purposes.

Simplifying the equation, we get:

a = 187,500

Therefore, the assessed value of the house is $187,500.

To find the property tax, we can use the given tax rate of $2.45 per $100 of assessed value.

First, we need to convert the assessed value from dollars to hundreds of dollars, which we can do by dividing by 100:

187,500 / 100 = 1,875

Next, we can multiply the assessed value in hundreds of dollars by the tax rate per hundred dollars:

1,875 x 2.45 = 4,593.75

Therefore, the property tax on the house is $4,593.75.

What function matches this graph

Answers

The equation of the absolute value function set on Cartesian plane is f(x) = - |(1 / 2) · x|.

How to determine the definition of an absolute value function

In this problem we need to find the equation behind the representation of an absolute value function on Cartesian plane, whose definition is shown below:

f(x) = - |m · x + b|

Where:

m - Slopeb - Intercept

First, determine the slope of the absolute value:

m = (1 - 0) / (2 - 0)

m = 1 / 2

Second, find the intercept of the function:

b = 0

Third, define the absolute value function:

f(x) = - |(1 / 2) · x|

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The tallest living man height was 247cm. The shortest living man was 122.8cm. Heights of men had a mean of 175.97cm and a standard deviation of 7.46cm. Which of these men had the height that was more extreme? Since the z score for the tallest man is z= ? And the z score for the shortest man is z=? Who had the most extreme height?

Answers

Answer:

Step-by-step explanation:

To determine which man had the more extreme height, we can calculate the z-scores for both individuals and compare their values. The z-score indicates how many standard deviations a particular value is from the mean.

For the tallest man with a height of 247 cm, we can calculate the z-score using the formula:

z = (x - μ) / σ

where x is the value (247 cm), μ is the mean (175.97 cm), and σ is the standard deviation (7.46 cm).

z = (247 - 175.97) / 7.46 ≈ 9.50

For the shortest man with a height of 122.8 cm, we can calculate the z-score using the same formula:

z = (x - μ) / σz = (122.8 - 175.97) / 7.46 ≈ -7.14

The z-score for the tallest man is approximately 9.50, and the z-score for the shortest man is approximately -7.14.

Since the z-score measures how many standard deviations a value is from the mean, the man with the z-score of 9.50 (the tallest man) has the more extreme height. A higher z-score indicates a more extreme deviation from the mean.

please help me with this ​

Answers

Answer:

3/4

Step-by-step explanation:

The 0 <= theta <= pi/2 makes it so the angle must be in the first quadrant. From there, you can use the fact that sin = opposite / hypotenuse.

Thus the opposite side length would be 5, the hypotenuse would be 5, and the adjacent side length would be 3 (by Pythagorean theorem).

Recall that cot = cotangent = 1 / tan. And recall that tan is opposite of adjacent. So tan(theta) = 4/3, and cot (theta) = 3/4.

show work if possible

Answers

Answer:

A. z+50

Step-by-step explanation:

Friday => z visitors

Saterday => z+100 visitors

sunday => (z visitors + z+100 visitors) /2 = (z+z+100)/2 = (2z+100)/2 =
2z/2 + 100/2 = z+50  

What the meaning of statement this?

Answers

This symbol "  [tex]\phi = {u : u\neq u}[/tex]" given in set statement means that the set is empty and has no element in it.

What is the meaning of [tex]\phi = {u : u\neq u}[/tex]?

[tex]\phi = {u : u\neq u}[/tex] is a set notation that represents the empty set. In set theory, the empty set, denoted by the symbol [tex]\phi[/tex] or {}.

An empty set is defined as a set that does not contain any elements and it is just empty or null.

For this question,  [tex]\phi = {u : u\neq u}[/tex] , the set is defined using a condition or property.

The condition given is u ≠ u, which is always false for any element. So we can say that it implies that there is no element that satisfies the condition u ≠ u, meaning there are no elements in the set.

Hence, the set is empty.

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Find the equation of a line parallel to y=x−1 that contains the point (−3,−2). Write the equation in slope-intercept form.

Answers

Answer:

y = x + 1

Step-by-step explanation:

Parallel lines have same slope.

y = x - 1

Compare with the equation of line in slope y-intercept form: y = mx +b

Here, m is the slope and b is the y-intercept.

m =1

Now, the equation is,

         y = x + b

The required line passes through (-3 ,-2). Substitute in the above equation and find y-intercept,

        -2 = -3 + b

  -2 + 3 = b

         [tex]\boxed{b= 1}[/tex]

    Equation of line in slope-intercept form:

                  [tex]\boxed{\bf y = x + 1}[/tex]      

The equation is :

↬ y = x + 1

Solution:

We Know

If two lines are parallel to each other, then their slopes are equal. The slope of y = x - 1 is 1. Hence, the slope of the line that is parallel to that line is 1.

We shouldn't forget about a point on the line : (-3, -2).

I plug that into a point-slope which is :

[tex]\sf{y-y_1=m(x-x_1)}[/tex]

Slope is 1 so

[tex]\sf{y-y_1=1(x-x_1)}[/tex]

Simplify

[tex]\sf{y-y_1=x-x_1}[/tex]

Now I plug in the other numbers.

-3 and -2 are x and y, respectively.

[tex]\sf{y-(-2)=x-(-3)}[/tex]

Simplify

[tex]\sf{y+2=x+3}[/tex]

We're almost there, the objective is to have an equation in y = mx + b form.

So now I subtract 2 from each side

[tex]\sf{y=x+1}[/tex]

Hence, the equation is y = x + 1

A survey was given to 320 people asking whether people like dogs and/or cats.
102 said they like dogs
196 said they like cats
72 said they don't like cats or dogs.
How many said they liked both cats and dogs?
people liked both cats and dogs.

Answers

Answer:

50 people

Step-by-step explanation:

After removing the people who liked neither, we are left with,

320 - 72 = 248

now, out of these 248, 196 like cats

248 - 196 = 52 so 52 dont like cats

also, 102 like dogs so 248 - 102 = 146

so 146 dont like cats

these 146 cannot be included in liking both

similarly the 52 cannot be included in liking both

so we are left with 248 - 52 - 146 = 50

so 50 people like both cats and dogs

Ken's living room and computer room have the dimensions shown.

What is the total volume of the rooms, in cubic feet?

Answers

Answer:

The total volume is 1660 cubic feet.

Step-by-step explanation:

The volume of a room is:

Vol = l × w × h

We calculate the two rooms separately, then add them together for the final answer.



The large room is:

Vol = 14 × 9 × 10

= 1260

The smaller room is:

Vol = 8 × 5 × 10

= 400



The total volume is

1260 + 400

= 1660

The total volume of the two rooms is 1660 cubic feet.

Write two numbers that multiply to the value on top and add to the value on bottom.
6
-7

Answers

Answer:

-1 and -6

Step-by-step explanation:

If you multiply negative times negative or minus times minus it will turn to plus so

- x - = +

-1 x -6 = +6

If you add negative plus negative or minus plus minus it remain negative or minus

- + - = -

-1 + -6 = -7

The two numbers that multiply to 6 and add to -7 are -1 and -6.

We are given two conditions:

xy = 6

x + y = -7

We can rearrange equation 2 to express one variable in terms of the other.

x = -7 - y

Now we can substitute this expression for x in equation 1:

(-7 - y) y = 6

Expanding the equation:

-7y - y²= 6

Rearranging the equation to bring it to a quadratic form:

y² + 7y + 6 = 0

We can now solve this quadratic equation to find the values of y.

Factoring the quadratic equation:

(y + 6)(y + 1) = 0

Setting each factor equal to zero and solving for y:

y + 6 = 0 --> y = -6

y + 1 = 0 --> y = -1

So we have two possible values for y: -6 and -1.

Substituting these values back into equation 2 to find the corresponding values of x:

For y = -6:

x + (-6) = -7

x = -1

For y = -1:

x + (-1) = -7

x = -6

Therefore, the two numbers that multiply to 6 and add to -7 are -1 and -6.

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Deriving the Law of Cosines Follow these steps to derive the law of cosines. 1. The relationship between the side lengths in AABD is 2²=²+h² by the Pythagorean theorem 2. The relationship between the side lengths in ACBD is a² = (b-x)² +h² by the law of sines ​

Answers

This is the Law of Cosines, which relates the Lengths of the sides of a triangle to the cosine of one of its angles.CD² = AC² + (b - x)² - 2 * AC * (b - x) * (sin(ABD) / sin(ACD))

To derive the Law of Cosines, follow these steps:

Step 1: Consider the triangle AABD, where A and B are vertices and AB is the side opposite the angle ABD.

Apply the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. In this case, we have:

AB² = AD² + BD²

Step 2: Now, consider the triangle ACBD, where C is another vertex and AC is the side opposite the angle ACD.

Apply the Law of Sines, which states that the ratio of the length of a side of a triangle to the sine of the opposite angle is the same for all sides and angles in the triangle. In this case, we have:

AC / sin(ACD) = BD / sin(ABD)

Rearrange the equation to isolate AC:

AC = (BD / sin(ABD)) * sin(ACD)

Step 3: Notice that BD = b - x, where b is the length of AB and x is the length of CD.

Substitute this expression for BD in the equation from step 2:

AC = ((b - x) / sin(ABD)) * sin(ACD)

Step 4: Square both sides of the equation obtained in step 3:

AC² = ((b - x) / sin(ABD))² * sin²(ACD)

Step 5: Recall that sin²(ACD) = 1 - cos²(ACD). Substitute this expression in the equation from step 4:

AC² = ((b - x) / sin(ABD))² * (1 - cos²(ACD))

Step 6: Rearrange the equation to isolate cos²(ACD):

cos²(ACD) = 1 - (AC² / ((b - x) / sin(ABD))²)

Step 7: Simplify the equation:

cos²(ACD) = 1 - AC² / (b - x)² * (sin(ABD) / sin(ACD))²

Step 8: Finally, recall that cos²(ACD) = 1 - sin²(ACD) = 1 - (CD / AC)². Substitute this expression in the equation from step 7:

1 - (CD / AC)² = 1 - AC² / (b - x)² * (sin(ABD) / sin(ACD))²

Rearrange the equation to obtain the Law of Cosines:

CD² = AC² + (b - x)² - 2 * AC * (b - x) * (sin(ABD) / sin(ACD))

This is the Law of Cosines, which relates the lengths of the sides of a triangle to the cosine of one of its angles.

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Please help me im not good at math

Answers

Answer:

2m - 72

Step-by-step explanation:

2x Malik's age = 2 × m, m represents his age because it is unknown

72 less means -72

A computer user has downloaded 35 songs using an online file-sharing program and wants to create a CD-R with 15 songs to use in his portable CD player. If the order that the songs are placed on the CD-R is important to him, how many different CD-Rs could he make from the 35 songs available to him?

Answers

Step-by-step explanation:

To calculate the number of different CD-Rs that the computer user can create with 15 songs from the available 35 songs, we need to calculate the number of permutations.

The formula for permutations is nPr = n! / (n - r)!, where n is the total number of items and r is the number of items taken at a time.

In this case, the computer user has 35 songs available, and they want to create a CD-R with 15 songs.

Number of permutations = 35P15 = 35! / (35 - 15)!

Calculating this:

35! / (35 - 15)! = (35 * 34 * 33 * ... * 21) / 15!

However, the factorial calculation for 35! / 15! is extensive and can be challenging to compute directly. Instead, we can simplify the expression using cancelations:

35! / (35 - 15)! = (35 * 34 * 33 * ... * 21) / (15 * 14 * 13 * ... * 1)

Many terms will cancel out:

(35 * 34 * 33 * ... * 21) / (15 * 14 * 13 * ... * 1) = 35 * 34 * 33 * ... * 21

Now, we can calculate the simplified expression:

35 * 34 * 33 * ... * 21 ≈ 5.0477859e+19

Therefore, the computer user can create approximately 5.0477859e+19 different CD-Rs with 15 songs from the available 35 songs.

Simplify: −6ru2−ur2−22u2r2

Answers

The simplified form of[tex]-6ru^2 -ur^2 - 22u^2r^2[/tex]is [tex]-u^2(7r + 22r^2)[/tex].

To simplify the expression[tex]-6ru^2 -ur^2 - 22u^2r^2[/tex], we can combine like terms and factor out common factors.

First, let's look at the variables r and u separately:

For r:

We have terms[tex]-6ru^2[/tex] and [tex]-ur^2.[/tex] We can factor out r from these terms:

[tex]r(-6u^2 - u^2)\\r(-7u^2)[/tex]

For u:

We have term[tex]-22u^2r^2[/tex]. We can factor out[tex]u^2[/tex]from this term:

[tex]u^2(-22r^2)[/tex]

Combining the simplified terms for r and u, we get:

[tex]r(-7u^2) + u^2(-22r^2)[/tex]

Now, we can factor out the common factor of[tex]-u^2[/tex]:

[tex]u^2(7r + 22r^2)[/tex]

Therefore, the simplified expression is[tex]-u^2(7r + 22r^2)[/tex] .

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