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3 years ago

9

Please answer all 3 questions thank you.

1 answer:

gavmur [86]3 years ago

7 0

1) Since 8 is 3 units away from 5 we know the radius is 3. When we put that in the circumference formula we get 6(pi) which is 18.8

2) When we use pythagorean thereom we get that the radius is 5 time the square root of 2. When we put this in the area formula we get 25(2)(pi) which is 157.1

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4 years ago

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MAXImum [283]

Answer:

Yes, it is a quadratic equation.

Step-by-step explanation:

<em>Let's solve it to make it a quadratic equation:</em>

=> $\frac{x^2+1}{x^2} =5$

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=> 4x²-1 = 0

<em>Comparing it with the standard form of quadratic equation i.e. </em>

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So, we get

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4 years ago

a roller skating rink offers a special rate for birthday parties. On the samr day, a party for 10 skaters cost $107 and a party

olga nikolaevna [1]

Answer:

$119

Step-by-step explanation:

Let

x -----> the number of skaters

y -----> the cost for birthday parties

we have the points

(10,107) and (15,137)

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{137-107}{15-10}$

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step 2

Find the equation of the line in point slope form

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we have

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substitute

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step 3

Convert to slope intercept form

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step 4

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For x=12 skaters

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3 years ago

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Answer:

Step-by-step explanation:

C.

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3 years ago

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Check the picture below.

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3 years ago