We can use the formula r\sqrt((S)/(12.6)) to relate a ball's surface area S(in square inches) to its radius r (in inches). Suppose a ball has a surface area of 415.8 square inches. What is its radius?
Round your answer to the nearest tenth.

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step-by-step explanation:

correct answer:

b.(19,-2)

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

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