Kellen runs for at least 1 hour but for no more than 2 hours. He runs at at an


average rate of 6. 6 kilometers per hour. The equation that models the distance he


runs for t hours is = 6. 6t


Find the theoretical and practical domains of the equation.


Select ALL correct answers.

Answer: We can check whether the expression (x + 18) is a factor of x² - 324 by dividing x² - 324 by (x + 18) using polynomial long division or synthetic division.

Using polynomial long division:

x + 18 │x² + 0x - 324

       -x² - 18x

       ----------

        18x - 324

        18x + 324

        ----------

            0

Since there is no remainder, we can see that (x + 18) is indeed a factor of
x² - 324.

The volume of raspberries in Mateo's box is 384 cubic centimeters.

To calculate the volume of raspberries in Mateo's box, we need to use the formula for the volume of a rectangular prism, which is length x width x height. In this case, the length and width are both 8 centimeters, as the box has a square bottom. The height is 6 centimeters, as Mateo fills the box to that height with raspberries.

So, the volume of raspberries in Mateo's box is:

Volume = length x width x height
Volume = 8 cm x 8 cm x 6 cm
Volume = 384 cubic centimeters

Therefore, the volume of raspberries in Mateo's box is 384 cubic centimeters. This calculation assumes that the raspberries are tightly packed in the box, without any gaps or air pockets. In reality, the actual volume of raspberries may be slightly less than this, depending on how they are arranged in the box. Nonetheless, this calculation provides a reasonable estimate of the amount of raspberries that Mateo is able to pick and fit in the box.

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Answer:

210 feet

Step-by-step explanation:

Refer the attached figure

LK = 22 ft

KH=JI = 18 ft.

HG=14 ft.

CD=FE=16 ft.

AL=15 ft.

GF=CB = 5ft.

KJ=HI=10 ft.

CF=CB+BG+GF=5+15+5=25 ft. =DE

AB= LK+KH+HG=22+18+14= 54 ft.

Perimeter of polygon = Sum of all sides

Perimeter of polygon=AL+LK+KJ+JI+HI+HG+GF+FE+DE+CD+CB+BA

                                  =15+22+10+18+10+14+5+16+25+16+5+54

                                  =210                                              

Hence the perimeter of the polygon is 210 feet.                      

PLS MARK BRAINLIEST

The ratio of a : b : c : d is 3 : 7 : 2 : 7.

The ratios are determined as follows from the data given.

The given data is:

7a = 2b

b = (7/2)a.

a and b have no common factors, thus a must be even and b must be odd.

c : d is 2 : 7

For an integer x, c = 2x and d = 7x

a : d is 3 : 1

So for an integer y, a = 3y and d = y

Substituting into 7a = 2b:

7(3y) = 2(7/2)y a

21y = 7y * b

b = 3a

Substituting these expressions for a and b into c : d = 2:7, we get:

2x : 7x = 3 : 1

2x = 3y and 7x = y

y = 14x/3

a : b : c : d = 3y : 7y : 2x : 7x

a : b : c : d = 3(3y) : 3(7y) : 3(2x) : 3(7x)

a : b : c : d = 9y : 21y : 6x : 21x

a : b : c : d = 3 : 7 : 2 : 7

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The most likely main conflict in a story is that the people have trouble finding food. The Option B is correct.

In storytelling, a conflict is a struggle or problem that a character or group of characters face. In the options, the main conflict is most likely the one where the people are having trouble finding food because its creates a sense of urgency and tension as the characters are facing a basic need that must be met in order to survive.

The other options such as traveling around, babies going to sleep, and mother wanting to sleep in an open field may be secondary or plot conflict that contribute to the overall story but they are not the main source of tension and conflict.

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The given statement:

(x + 2) + 5 = x + (2 + 5)

illustrates the associative property of addition.

There are three properties of addition : Associative, commutative and identity.

The associative property of addition states that : (a+b)+c = a + (b+c)

The commutative property of addition states that : a + b = b + a

The identity property of addition states that : a + 0 = a.

Therefore, the statement is illustrating the associative property of addition.

Step-by-step explanation:

just convert the 1/3 and times 3 to both it's numerator and denominator.

once you have the same denominator as the other mixed number, you can start to minus.

Answer:

2 1/9 hrs

Step-by-step explanation:

4 1/3 = 13/3 = 39/9

2 2/9 = 20/9

39/9 - 20/9 = 19/9 = 2 1/9 hrs

or,

(4 - 2) + (3/9 - 2/9) = 2 1/9 hrs

If they each work 22 hours, Marsha will earn about $35.75 more than Tamekia.

To compare how much more money Marsha will earn than Tamekia, we can use the averages of their respective hourly rates and then multiply by the number of hours worked.

Tamekia's average hourly rate: ($6.00 + $6.25) / 2 = $6.125
Marsha's average hourly rate: ($7.50 + $8.00) / 2 = $7.75

Now, we'll multiply their average hourly rates by the number of hours worked, which is 22 hours.

Tamekia's total earnings: $6.125 x 22 = $134.75
Marsha's total earnings: $7.75 x 22 = $170.50

Finally, we'll subtract Tamekia's earnings from Marsha's earnings to find the difference:

$170.50 - $134.75 = $35.75

So, Marsha will earn about $35.75 more than Tamekia if they each work 22 hours.

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Marsha will earn $38.50 more than Tamekia if they each work 22 hours.

ans.(a) is correct

only in option (a) numbers are arranged from least to greatest.

The equation of the line that is perpendicular to y = -8x + 2 and contains the point (-4, 1) is y = (1/8)x + (3/2).

To find the equation of the line that is perpendicular to y = -8x + 2 and contains the point (-4, 1), first, determine the slope of the given line. The slope is -8. Perpendicular lines have slopes that are negative reciprocals of each other, so the slope of the new line will be 1/8.

Now, use the point-slope form of a linear equation, y - y1 = m(x - x1), where m is the slope and (x1, y1) is the given point (-4, 1). Plug in the values: y - 1 = (1/8)(x - (-4)).

Simplify the equation: y - 1 = (1/8)(x + 4). Distribute the 1/8: y - 1 = (1/8)x + (1/2). Finally, add 1 to both sides: y = (1/8)x + (1/2) + 1.

So, the equation of the line that is perpendicular to y = -8x + 2 and contains the point (-4, 1) is y = (1/8)x + (3/2).

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The slope of the linear function that models the data in the table is -1.5. It was calculated by using the formula for slope (change in y divided by change in x) and plugging in the given coordinates. This means that for every increase of 2 in the x-value, the y-value decreases by 3.

To find the slope of the linear function that models the data in the table, we can use the slope formula

slope = (change in y)/(change in x)

We can choose any two points from the table to calculate the slope. Let's choose the points (-2,6) and (0,3)

change in y = 3 - 6 = -3

change in x = 0 - (-2) = 2

So the slope is

slope = (-3)/(2) = -1.5

Therefore, the slope of the linear function that models the data in the table is -1.5.

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--The given question is incomplete, the complete question is given

" What is the slope of the linear function that models the data in the table? "--

Based on the given data, the line of best fit equation is g = 9m - 0.17, where "g" represents the number of gallons of water in the tank and "m" represents the number of minutes the tank was being filled.

To find the approximate number of gallons of water in the tank after 45 minutes of being filled, we need to substitute "m=45" in the equation and solve for "g".

g = 9(45) - 0.17

g = 405.83

Therefore, approximately 405 gallons of water would be in the tank after 45 minutes of being filled. The closest option to this answer is option B, which states 405 gallons. Therefore, option B is the correct answer.

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Answer:

38 degrees

Step-by-step explanation:

Vertical angles are congruent(equal measures), so mLA = mLB

STEP 1:

Let's use some simple substitution.

mLA = mLB

mLA = x+21, mLB = 4x-30

You plug these two in and get:

x+21 = 4x-30

This is your equation.

STEP 2:

Let's solve our equation!

x+21 = 4x-30

(add 30 to both sides)

x+51 = 4x

(subtract x from both sides)

51 = 3x

(switch order for comprehension)

3x = 51

(divide both sides by 3)

x = 17

Ta-da! You get the measure of x = 17 degrees.

STEP 3:

Let's plug in our value of x to get the value of LB.

mLB = 4x - 30

mLB = 4(17) - 30

mLB = 68 - 30

mLB = 38

This is your answer.

To paint all sides of the box, you would need approximately 344 square meters of paint.

To calculate the amount of paint needed to paint all sides of the box, we first need to find the total surface area of the box.

The box has five sides: top, bottom, front, back, and two sides.

Given the dimensions:

Top: 4m x 13m

Bottom: 4m x 13m

Front: 4m x 4m

Back: 4m x 4m

Sides (2): 4m x 11m.

To calculate the surface area, we sum the areas of all the sides:

Surface Area = (4m x 13m) + (4m x 13m) + (4m x 4m) + (4m x 4m) + (4m x 11m) + (4m x 11m)

Surface Area = 52m² + 52m² + 16m² + 16m² + 44m² + 44m²

Surface Area = 224m² + 32m² + 88m²

Surface Area = 344m²

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Pen demand decrease reduces pen price, quantity supplied; increases pencil demand, price, and quantity supplied as a substitute.

If the demand for ink pens falls, this would likely result in a decrease in the demand for pens and an increase in the demand for pencils, since they are substitutes.

As a result, the price of pens would likely fall, as producers try to entice buyers to purchase pens over pencils. This decrease in the price of pens would, in turn, lead to a decrease in the quantity supplied of pens, as producers shift their focus to producing other goods that are more in demand.

However, the quantity demanded of pencils would increase, leading to an increase in the price of pencils and an increase in the quantity supplied of pencils. Ultimately, the market for ink pens and pencils would adjust to reflect the changes in demand, resulting in changes in both price and quantity.

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Answer:

[tex]2( {3}^{x} ) = 258280326[/tex]

[tex] {3}^{x} = 129140163[/tex]

[tex]x = \frac{ ln(129140163) }{ ln(3) } = 17[/tex]

n = 17 + 1 = 18

[tex]s = \frac{2( 1 - {3}^{18} )}{1 - 3} = 387420488[/tex]

The sum of this finite geometric series is 387,420,488.

A store has 25 VCRs in stock, but 2 of these are defective he answer is the probability that the second person to buy a VCR gets a defective one and the first customer's VCR was not defective is .077.

The probability that the first customer's VCR is not defective is 23/25, as there are 23 working VCRs out of the total 25.

Since one VCR has already been sold, there are 24 VCRs left and 1 defective VCR. Thus, the probability that the second customer gets a defective VCR is 1/24.

To find the probability that both events occur, we multiply the individual probabilities:

P = (23/25) x (1/24)

P = 0.077 or 0.0778 when rounded to the nearest thousandth.

Therefore, A store has 25 VCRs in stock, but 2 of these are defective he answer is the probability that the second person to buy a VCR gets a defective one and the first customer's VCR was not defective is .077.

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The number 71.38 can be written in word form as "seventy-one and thirty-eight hundredths." The correct answer is option D.

In decimal notation, the number 71.38 can be broken down into its whole number and decimal parts. The whole number part is 71, and the decimal part is 0.38.

In a decimal number, the digits to the right of the decimal point represent fractions of a whole. Each digit to the right of the decimal point has a place value that is a power of 10.

In word form, the decimal part 0.38 is read as "thirty-eight hundredths." Therefore, when combined with the whole number 71, the correct word form is "Seventy-one and thirty-eight hundredths."

Therefore option D is the correct answer.

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Answer:

-9

Step-by-step explanation:

Recall the following relationships about the sum of cubes and a square binomial:

[tex]a^3+b^3=(a+b)(a^2-ab+b^2)[/tex]

[tex](a+b)^2=a^2+2ab+b^2[/tex]

The second factor on the right hand side of equation 1 looks similar to the right hand side of equation 2, but differs slightly.

Carefully choosing to subtract 3ab from both sides of the equation 2, and Combining like terms  yields...

[tex](a+b)^2-3ab=a^2-ab+b^2[/tex]

This now matches the second factor on the right hand side of the first equation.  So, with substitution, the first equation becomes:

[tex]a^3+b^3=(a+b)(a^2-ab+b^2)[/tex]

[tex]a^3+b^3=(a+b)((a+b)^2-3ab)[/tex]

Note that all of the parts on the right hand side of the equation are given in the question:

a+b=3 and ab=4

With some substitution and simplification

[tex]a^3+b^3=(a+b)((a+b)^2-3ab)[/tex]

[tex]=(3)((3)^2-3(4))[/tex]

[tex]=(3)(9-3(4))[/tex]

[tex]=(3)(9-12)[/tex]

[tex]=(3)(-3)[/tex]

[tex]=-9[/tex]

Answer:

C

Step-by-step explanation:

Since the rate is linear, we can subtract a larger amount of minutes by a smaller one and a larger cost by a smaller one.

For example:

20 - 15 = 5

3.40 - 3.05 = 0.35

Since you want to find the amount it takes per minute, you divide the 5 by 5 to make it one minute. You also divide the 0.35 by 5 in which you get 7.

Answer:

499

Step-by-step explanation:

the cross product of the normal vectors of the planes will give you the direction vector of the line.

(5,−3,1)×(3,1,−5)=(14,28,14)

Which we can scale down to (1,2,1)

Now we need a point on the line. By inspection we can see that (1,1,0) lies in both planes.

Sometimes it it not that easy. But it is usually pretty easy to find a point in at least one plane and then travel along some line in that plane until we intersect the line in question.

Vector form of the line  L:(x,y,z)=(1,2,1)t+(1,1,0)

In parametric form  x=t+1,y=2t+1,z=t

The parametric equations are (x(t), y(t), z(t)) = (17/34 + 11t/34, 22/34 - 5t/34, 57/34 + 7t/34), where t is a parameter. The angle between the planes is 93.7 degrees.

To find the line of intersection of the planes, we can set the two equations equal to each other and solve for x, y, and z in terms of a parameter t. We can begin by eliminating one variable, say z.

From the first equation, we have z = 2 - 5x + 3y, and substituting this into the second equation gives 3x + y - 5(2 - 5x + 3y) = 4. Simplifying this equation, we get 22x - 14y - 23 = 0. Solving for y in terms of x, we get y = (22/14)x - (23/14).

Substituting this into the first equation and solving for z, we get z = (17/14)x + (57/14). Therefore, we have x = (17/22) + (11/22)t, y = (22/14) - (5/14)t, and z = (17/14)x + (57/14) + (7/22)t. These are the parametric equations for the line of intersection of the planes.

To find the angle between the planes, we can find the angle between their normal vectors.

The normal vector to the plane 5x - 3y + z = 2 is (5, -3, 1), and the normal vector to the plane 3x + y - 5z = 4 is (3, 1, -5). Using the dot product formula, we have cosθ = (5)(3) + (-3)(1) + (1)(-5) / sqrt(5² + (-3)² + 1²) sqrt(3² + 1² + (-5)²), which simplifies to cosθ = -19/34.

Taking the inverse cosine of this value, we get θ = 93.7 degrees, rounded to one decimal place. Therefore, the angle between the planes is approximately 93.7 degrees.

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The arc angle indicated with ? is derived as 230° using the angle between intersecting tangents.

The angle between two tangent lines which intersect at a point is 180 degrees minus the measure of the arc between the two points of tangency.

angle G = 180° - arc angle HF

arc angle HF = 180° - 50°

arc angle HF = 130°

so the arc angle indicated with ? is;

? = 360° - 130°

? = 230°

Therefore, using the angle between the intersecting tangents, the arc angle indicated with ? is 230°.

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The value of h is 6 units.

The volume of the prism is given by the formula V = 1/3 x (base area) x height. Since the base of the prism is a right triangle, the area of the base is given by A = 1/2 x base x height of the triangle. Therefore, the volume of the prism can be written as V = 1/3 x 1/2 x base x height of the triangle x height of the prism.

Simplifying this expression, we get V = 1/6 x base x height^2. Given that the volume of the prism is 54 cubic units, and substituting the value of the base which is not given as per the formula we get, 54 = 1/6 x base x h^2. Solving for h, we get h = 6 units. Therefore, the value of h is 6 units.

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Answer:

92°

Step-by-step explanation:

All angles should add up to 360°

Opposite angles are equal so that means two angles are 88°

88+88=176

360 - 176 = 184

184 / 2 = 95

Measure of angle A is 92°

To find the interval of convergence of the power series, we can use the ratio test:

lim (n->inf) |((n+1)!(x+5)^(n+1)) / (1.3.5....(2n+1))| / |(n!(x+5)^n) / (1.3.5....(2n-1))|

= lim (n->inf) |(x+5)(2n+1)| / (2n+2) = |x+5| lim (n->inf) (2n+1)/(2n+2) = |x+5|

So the series converges if |x+5| < 1, and diverges if |x+5| > 1. Thus the interval of convergence is (-6, -4).

To check for convergence at the endpoints, we can use the limit comparison test with the divergent series:

1/1.3 + 1/1.3.5 + 1/1.3.5.7 + ... = sum (2n-1) terms = inf

At x = -6, we have:

sum (n=0 to inf) (n!(-1)^n)/(1.3.5....(2n-1)) = 1/1 - 1/1.3 + 1/1.3.5 - 1/1.3.5.7 + ... = inf

Since the series diverges at x = -6, the interval of convergence is (-6, -4] using set notation.

At x = -4, we have:

sum (n=0 to inf) (n!(1)^n)/(1.3.5....(2n-1)) = 1/1 - 1/1.3 + 1/1.3.5 - 1/1.3.5.7 + ... = 1 - 1/3 + 1/15 - 1/105 + ...

This is an alternating series that satisfies the conditions of the alternating series test, so it converges. Thus the interval of convergence is (-6, -4] using set notation, or [-6, -4) using interval notation.
To find the interval of convergence of the power series, we'll use the Ratio Test, which states that if the limit L = lim(n→∞) |aₙ₊₁/aₙ| < 1, then the series converges. Here, the series is given by:

Σ(n!(x+5)^n) / 1 . 3 . 5 ... (2n-1)

Let's find the limit L:

L = lim(n→∞) |(aₙ₊₁/aₙ)|
 = lim(n→∞) |((n+1)!(x+5)^(n+1))/(1 . 3 . 5 ... (2(n+1)-1)) * (1 . 3 . 5 ... (2n-1))/(n!(x+5)^n)|

Now, simplify the expression:

L = lim(n→∞) |(n+1)(x+5)/((2n+1))|

For the series to converge, we need L < 1:

|(n+1)(x+5)/((2n+1))| < 1

As n approaches infinity, the above inequality reduces to:

|x+5| < 1

Now, to find the interval of convergence, we need to solve for x:

-1 < x + 5 < 1
-6 < x < -4

The interval of convergence is given by the interval notation (-6, -4). To check the endpoints, we need to substitute x = -6 and x = -4 back into the original series and use other convergence tests such as the Alternating Series Test or the Integral Test. However, the power series will diverge at the endpoints, as the terms do not approach 0. Therefore, the interval of convergence remains (-6, -4).

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John needs approximately 1,814.4 mm² of tape to cover the pepper shaker. Rounded to the hundredths, the answer is 1,814.40 mm².

To calculate the amount of tape needed to cover the pepper shaker, we need to find the lateral area of the cylinder. This is given by the formula L = 2πrh, where r is the radius and h is the height.

Substituting the values given, we get L = 2π(9 mm)(32 mm) = 1,814.4 mm².

Therefore, John needs approximately 1,814.40 mm² of tape to cover the pepper shaker.

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The owners of the farm will stop harvesting when only 1000 trees remain during the fifth year of harvesting.

a) To get the regression equation for the relationship between time and trees remaining, we need to use linear regression. We can use the data given in the table to create a scatterplot and then find the line of best fit. Using a calculator or Excel, we can find that the regression equation is:
Trees remaining = 1177.38 - 36.25(time)
where "Trees remaining" is the number of trees remaining and "time" is the number of years since harvesting began.
b) To find during which year the owners of the farm will stop harvesting when only 1000 trees remain, we can substitute "1000" for "Trees remaining" in the regression equation and solve for "time":
1000 = 1177.38 - 36.25(time)
Solving for "time", we get:
time = (1177.38 - 1000) / 36.25
time ≈ 4.89 years
Therefore, the owners of the farm will stop harvesting when only 1000 trees remain during the fifth year of harvesting.

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The missing parts of the triangle are:

To find the missing parts of the triangle, we can use the Law of Sines and Law of Cosines.

First, we can use the Law of Cosines to find angle A:

cos(A) = (b² + c² - a²) / (2bc)

cos(A) = (13.7² + 16.7² - 8²) / (2 * 13.7 * 16.7)

cos(A) = 0.773

A = [tex]cos^-^1^(^0^.^7^7^3^)[/tex]

A ≈ 28.4°

Next, we can use the fact that the sum of the angles in a triangle is 180° to find angles B and C:

B = 180° - A - C

B = 180° - 28.4° - 99.1°

B ≈ 52.5°

C = 180° - A - B

C = 180° - 28.4° - 52.5°

C ≈ 99.1°

Therefore, the missing parts of the triangle are:

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To determine whether the function f(x) = a^x-a^(-x)+sinx is even or odd, we need to check if it satisfies the properties of even and odd functions.

An even function is a function that satisfies the property f(x) = f(-x) for all x in the domain of the function. This means that if we reflect the graph of the function across the y-axis, we get the same graph.

An odd function is a function that satisfies the property f(x) = -f(-x) for all x in the domain of the function. This means that if we reflect the graph of the function across the origin (both x and y-axis), we get the same graph.

Let's start by checking whether f(x) is even:

f(-x) = a^(-x)-a^(x)+sin(-x)  (since sin(-x) = -sin(x))

       = -a^x+a^(-x)-sin(x)

Comparing f(-x) with f(x), we can see that f(-x) = -f(x) only when sin(x) = 0.

This means that f(x) is an even function only when sin(x) = 0, which occurs when x = nπ (where n is an integer).

Now, let's check whether f(x) is odd:

f(-x) = a^(-x)-a^(x)+sin(-x)  (since sin(-x) = -sin(x))

       = -a^x+a^(-x)-sin(x)

Comparing f(-x) with -f(x), we can see that f(-x) = -f(x) only when a^x = -a^x, which is not possible for any real value of a.

Therefore, f(x) is neither an even nor an odd function.
To determine whether the function f(x) = a^x - a^(-x) + sin(x) is even or odd, we can evaluate f(-x) and compare it to f(x).

An even function satisfies the condition f(-x) = f(x), while an odd function satisfies the condition f(-x) = -f(x).

Let's evaluate f(-x):
f(-x) = a^(-x) - a^(-(-x)) + sin(-x)
f(-x) = a^(-x) - a^x - sin(x)

Now, let's compare f(-x) to f(x):
f(-x) ≠ f(x) because f(x) = a^x - a^(-x) + sin(x)
f(-x) ≠ -f(x) because -f(x) = -a^x + a^(-x) - sin(x)

Since f(-x) is neither equal to f(x) nor -f(x), the function f(x) = a^x - a^(-x) + sin(x) is neither even nor odd.

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