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Black_prince [1.1K]
3 years ago
14

PLZZ HELPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Stells [14]3 years ago
7 0
Ok so for number one is 6in the radius? And for number two your answer is C. 250 in. Squared.
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Write and exponential and a linear equation using the following points:<br> (0,9) and (1,10.8)
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The linear equation for it is y= 1.8x+9
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if the area of a rectangle is 48 square feet and the width of the rectangle is 6 feet what is the perimeter of the rectangle
Over [174]

Answer:

28 ft

Step-by-step explanation:

the perimeter of the rectangle is 28 feet

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The expression 475 * 1.076 ^ t the average annual per capita health care costs, in dollars, in the US as a function of the numbe
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Answer:

Y(t)= 475 (1.076)^t

Where Y(t) represent the average annual per capita health care costs

475 represent the initial amount for the average annual per capita health care costs

t represent the number of years since 1970

And 1.076 represent the growth factor given by:

1+r = 1.076

And solving for r we got:

r = 1.076-1 =0.076

So for this case we can say that the value 1.076 represent the growth factor.

Step-by-step explanation:

For this case we have the following model given:

Y(t)= 475 (1.076)^t

Where Y(t) represent the average annual per capita health care costs

475 represent the initial amount for the average annual per capita health care costs

t represent the number of years since 1970

And 1.076 represent the growth factor given by:

1+r = 1.076

And solving for r we got:

r = 1.076-1 =0.076

So for this case we can say that the value 1.076 represent the growth factor.

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Please! I need help ASAP!
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Photomath might work
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Satellite dishes are shaped like parabolas to optimally revive signals. The cross section of a satellite dish can be modeled by
Anna11 [10]

The cross section of the satellite dish is an illustration of a quadratic function

The quadratic function that models the cross-section is y = 1/6(x^2 - 9)

<h3>How to determie the equation of the cross-section?</h3>

The given parameters are:

Width = 6 feet

Depth = 1.5 feet

Express the width the sum of two equal numbers

Width = 3 + 3

The above means that, the equation of the cross section passes through the x-axis at:

x = -3 and 3

So, we have:

y = a(x - 3) * (x + 3)

Express as the difference of two squares

y = a(x^2 - 9)

The depth is 1.5.

This is represented as: (x,y) =(0,-1.5)

So, we have:

-1.5 = a(0^2 - 9)

Evaluate the exponent

-1.5 = -9a

Divide both sides by -9

a = 1/6

Substitute 1/6 for a in y = a(x^2 - 9)

y = 1/6(x^2 - 9)

Hence, the quadratic function that models the cross-section is y = 1/6(x^2 - 9)

Read more about quadratic functions at:

brainly.com/question/1497716

7 0
2 years ago
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