a+√b) (a-√b .)is equal to​

Answer:

Step-by-step explanation:

Total surface area of a cone [tex]S[/tex] = [tex]\pi r^{2}+\pi rl\\[/tex]

Since the diagram is half of a cone, its surface area will be [tex]S = \frac{\pi r^{2} +\pi rl}{2}[/tex]

r = radius of the cone

l = slant height

From the diagram diameter of the cone = 16m;

r = 16/2 = 8m

l = 17m

[tex]S = \frac{\pi (8)^{2} +\pi (8)(17)}{2}\\S = \frac{64\pi + 136\pi }{2} \\S = 32\pi + 68\pi \\S = 100\pi cm^{2}[/tex]

Answer:

9 = (9 x 8)/8 = 72/8

10 =(10 x 8)/8 = 80/8

=> Six rational numbers between 9 and 10​ could be selected as:

73/8, 74/8, 75/8, 76/8, 77/8, 78/8

Hope this helps!

:)

Answer:

40 copies for $3000

Step-by-step explanation:

First: The Equation

y=(20+x)(100-x)

This shows how for every new painting, the price will go down.

y=2000+80x-x²

Convert it to standard form: ax²+bx+c

You can now choose to graph it or find the vertex form. For the limit of time, I will just use a graph.

The vertex, (40,3000), is your answer, where the x value is the number of paintings and the y value the money made.

Answer:

50 = x

Step-by-step explanation:

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

105 = 55+x

Subtract 55 from each side

105-55 = 55-55+x

50 = x

Answer:

A

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

105° is an exterior angle of the triangle , thus

x + 55 = 105° ( subtract 55 from both sides )

x = 50° → A

Answer:

r = 7/(9sinθ - cosθ)

to rectangular form is:

y = (1/9)x + 7/9

Step-by-step explanation:

Given that

r = 7/(9sinθ - cosθ)

Consider the following polar-to-rectangular equivalents.

x² + y² = r²

x/r = cosθ

y/r = sinθ

So

r = 7/(9sinθ - cosθ)

Can be written as

r = 7/(9y/r - x/r)

r = 7/(1/r)(9y - x)

Multiplying through by (1/r)

1 = 7/(9y - x)

Multiplying through by (9y - x)

9y - x = 7

9y = x + 7

Divide both sides by 9

y = x/9 + 7/9

y = (1/9)x + 7/9

And this is the answer

Answer:

y = (1/9)x + 7/9

Step-by-step explanation:

Divide both sides by 9

y = x/9 + 7/9

y = (1/9)x + 7/9

Divide both sides by 9

y = x/9 + 7/9

y = (1/9)x + 7/9

Answer:

[tex](x^{-3} )^{2}[/tex]

[tex]x^6 x^{-12}[/tex]

Step-by-step explanation:

[tex](x^{3} x^{-6} )^{2}[/tex] is the expression given to be solved.

First of all let us have a look at 3 formulas:

[tex]1.\ p^a \times p^b = p^{(a+b)}\\2.\ (p^a \times q^b)^c = (p^{a})^c \times (q^{b})^c\\3.\ (p^a)^b = p^{a\times b}[/tex]

Both the formula can be applied to the expression([tex](x^{3} x^{-6} )^{2}[/tex]) during the first step while solving it.

Applying formula (1):

[tex](x^{3} x^{-6} )^{2}[/tex]

Comparing the terms of [tex](x^{3} x^{-6} )[/tex] with [tex]p^a \times p^b[/tex]

[tex]p=x, a =3, b=-6[/tex]

[tex]\Rightarrow x^{3+(-6)}\\\Rightarrow x^{3-6}\\\Rightarrow x^{-3}[/tex]

So, [tex](x^{3} x^{-6} )^{2}[/tex] is reduced to [tex](x^{-3} )^{2}[/tex]

Applying formula (2):

Comparing the terms of [tex](x^{3} x^{-6} )^{2}[/tex] with [tex](p^a \times q^b)^c[/tex]

[tex]p=q=x, a =3, b=-6, c=2[/tex]

[tex]\Rightarrow (x^{3})^2\times (x^{-6})^2\\\text{Applying Formula (3)}\\x^6 x^{-12}[/tex]

So, [tex](x^{3} x^{-6} )^{2}[/tex] is reduced to [tex]x^6 x^{-12}[/tex].

So, the answers can be:

[tex](x^{-3} )^{2}[/tex]

[tex]x^6 x^{-12}[/tex]

Answer:

b d

Step-by-step explanation:

Answer:

The triangular prism is a better deal because you get 204 in³ for the same price you would pay for 128 in³ with a trapezoidal prism.

Step-by-step explanation:

The trapezoidal prism has volume 32*4=128 cubic inches. The triangular prism has volume 34*6=204 inches. Since the triangular prism is more voluminous, it is the better deal. Hope this helps!

Answer: x= 6.6667

Step-by-step explanation:

subtract 15 on both sides=20

divide 3 on both sides

Answer:

6.666

Step-by-step explanation:

Answer: 26

Step-by-step explanation:

cut 3 and 15

cut 5/10 which was 15/10

15/10=2

then multiply 13*2 = 26

Answer:

40

Step-by-step explanation:

To solve this, we can create an equation that represents this situation. Since Christopher score 7 more than twice what Mathew scored, the equation will be:

C = 2M + 7

(Variables are representative of the first letter of each name)

Seeing as Christopher scored 87, we can put that into the equation and solve for M.

So, the equation will be:

87 = 2M + 7

Subtract 7 from both sides in order to isolate variable M on the right side.

80 = 2M

Now solve for M, which is 40 (divide both sides by 2).

Answer: The no. is 8

Step-by-step explanation:

Let the no. be x

6x - 1 = 47

6x = 48

x = 8

Answer:

let the certain number be x

6 × x - 1= 47

6x - 1 = 47

6x = 47 + 1

6x = 48

x = 48/6

x = 8

There is a  1 in 6 chance.

Answer:

0.17

Step-by-step explanation:

Answer:

$83.2

Step-by-step explanation:

price= $128

sale discount= 35%

sale price= $128- 35%= $128*0.65= $83.2

Answer:

83.2$

Step-by-step explanation:

Given:

A docking station for an iPod cost 128$.

The discount percent is 35%.

Solve for:

The sale price of docking station.

Solution:

The amount of discounted price (DP) could be calculated by formula:

DP = original price x discount percent

     = 128 x 35%

     = 128 x 35/100

     = 44.8$

=> The sale price (P) is:

P = original price - discounted price

  = 128 - 44.8

  = 83.2$

Hope this helps!

Answer: 364 with a remainder of 28

Step-by-step explanation:

14952/41

41 goes into 149 3 times

149 - (41 *3)

149 - 123 = 26

41 goes into 265 6 times

265 - (41*6)

265 - 246 = 19

41 goes into 192 4 times

192 - (41*4)

192 - 164 = 28

So 14952/41 = 364 with a remainder of 28

Answer:

The answer is -13.

Step-by-step explanation:

Answer: A =350 (1.05)^t

Step-by-step explanation:

Hi, to answer this question we have to apply an exponential growth function:

A = P (1 + r) t  

Where:

p = original population

r = growing rate (decimal form; 5/100=0.05)

t= years

A = population after t years

Replacing with the values given:

A = 350 (1+0.05)^t

A =350 (1.05)^t

Feel free to ask for more if needed or if you did not understand something.

Answer:

Area is πr²

Step-by-step explanation:

The area of a circle is given as

A = πr²

Where r, which is half of the circumference of the circle, is the radius of the circle.

Where π = 3.14...

Answer:

πr2.

Step-by-step explanation:

The shape changed, but the amount of space inside the shape remained the same. The space inside the parallelogram is the same as the space, or area, inside the circle. The area of the circle is 0.5 × circumference × radius = πr2.

Answer:

Step-by-step explanation:

to calculate mean add all the entries in a week ,then divide by 7(the number of days)

i give you hint

mean for week 1=(52+65+...   +60)/7

Answer:

$180

Step-by-step explanation:

First, you have to calculate the amount that Olivia would have paid at the end of the loan which would be the result of multiplying her monthly payment for the number of payments:

Total payment= $308*(12*5)

Total payment= $308*60

Total payment= $18,480

Then, you have to calculate the amount that Garrett would have paid at the end of the loan:

Total payment= $311*(12*5)

Total payment= $311*60

Total payment= $18,660

Now, you have to calculate the difference in the amount Olivia and Garrett would have paid:

$18,660-$18,480= $180

According to this, an $18,000 loan will cost Garrett $180 more than Olivia.

Answer:

Yo whats up

Step-by-step explanation:

...

Answer:

OK but you get specific answers here and you can't always find the exact thing you're looking for on google

Step-by-step explanation:

Answer:

A. (-1, 3)

Step-by-step explanation:

→A solution is when the two lines on the graph intersect at a certain point. Looking at this graph, you can clearly see that the lines intersect at the point of (-1, 3).

This means the correct answer is "A."

Answer:

Including the princpal and two counselors, only 40 students will be able to attend each meeting.

If the principal and two counselors dont attend, then 41 students can attend with one of their parents.

Answer:

2/3, 7/10, 11/15 and 4/5

Step-by-step explanation:

2/3=0.66

7/10=0.7

11/15=0.73

4/5=0.8

Answer: 9π/2

Step-by-step explanation:

A semicircle is half of a circle. Therefore, you must divide the area by 2.

[tex]A=\frac{\pi r^2 }{2}[/tex]

Since we know the radius, we can directly plug it into the formula.

[tex]A=\frac{\pi (3)^2}{2} =\frac{9\pi }{2}[/tex]

Since the problem stated to give the answer in terms of π, 9π/2 is our answer.

Answer:

[tex]\frac{9\pi }{2}[/tex] cm²

Step-by-step explanation:

The area of a semicircle can be expressed by the formula [tex]\frac{\pi r^{2} }{2} = A[/tex].

When you plug in the radius, you get [tex]\frac{\pi 3^{2} }{2} = \frac{\pi 9}{2} = \frac{9\pi }{2}[/tex].

Answer:

63

Step-by-step explanation:

w(x) = 2x³ + 3x

Put x as 3.

w(3) = 2(3)³ + 3(3)

Solve for the power.

w(3) = 2(27) + 3(3)

Multiply the terms.

w(3) = 54 + 9

Add both the terms.

w(3) = 63

Answer:

I hope it helps :)

Step-by-step explanation:

[tex]w(x) = 2x^3+ 3x\\w(3)\\w(3) = 2(3)^3 +3(3)\\w(3) = 2(27) +9\\w(3) = 54+9\\w(3) =63[/tex]

Answer:

7.2

Step-by-step explanation:

The radius of the circle is 14.

The length of the chord is 12.

Half the length of the chord and radius form a right angled triangle as shown in the diagram below.

We need to find one of the sides of the triangle, d in the diagram.

Using Pythagoras rule:

[tex]14^2 = 12^2 + d^2\\\\196 = 144 + d^2\\\\d^2 = 196 - 144 = 52\\\\d = \sqrt{52} = 7.2[/tex]

The distance between the chord and the center of the circle is 7.2

Answer: 4sqrt10

Step-by-step explanation: The Chord is 12 so half the chord is 6 so the base is 6 and the radius is the hypotenuse, which is 14. and the distance is the missing leg.

so 14^2=6^2+x^2

196=36+x^2

sqrt160=x

4sqrt10=x

Answer:

Is the time in the graph drawn?

Step-by-step explanation:

Answer:

4x +16 the slope is 4 because its parallel to the other equation

The solution is: the equation of the line that is parallel to the line

y - 1 = 4(x + 3) and passes through the point (4, 32) is y = 4x + 16.

A straight line is an endless one-dimensional figure that has no width. It is a combination of endless points joined both sides of a point and has no curve.

Here, we have,

When two lines are parallel, their slope stays the same. thus we have y = 4x (so far)

Then use the point (4, 32) to plug in the coordinates to y = 4x + b

y = 4x + b (because y-intercept changes)

32 = 4(4) + b

32 = 16 + b

b = 32 - 16

b = 16

now, we get,

the y-intercept is 16 and the equation of the line that passes through the point (4,32) and is parallel to the line y = 4x + 13 is y = 4x + 16.

Hence, The solution is: the equation of the line that is parallel to the line

y - 1 = 4(x + 3) and passes through the point (4, 32) is y = 4x + 16.

To learn more on Equation 0f Straight-Line click:

https://brainly.com/question/25124441

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Answer:

$128.75

Step-by-step explanation:

Gross Pay = $1287.50

Income Tax  = 10% of Gross Pay

Income Tax  = 10% of $1287.50

Income Tax  = 10/100 * $1287.50 = $128.75

Thus, federal income tax is $128.75.

The value of the given expression √121 + ∛125 would be 16 which is determined by the square root and cube root properties.

Prime Factorization is defined as any number that may be expressed as a product of prime numbers that has been said to be prime factorized. Any integer with exactly two factors 1 and the number itself. is said to be a prime number.

The expression below which is given in the question

⇒ √121 + ∛125

Here 11×11 = 121 and 5×5×5 = 125

⇒ √(11×11) + ∛(5×5×5)

By the square root and cube root properties to get

⇒ 11 + 5

Apply the addition operation,

⇒ 16

Thus, the value of the given expression √121 + ∛125 would be 16.

Learn more about Prime Factorization here:

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