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Dmitry_Shevchenko [17]

3 years ago

6

A circle has an area of 75 square centimeters. Which answer is closest to the measure of its radius?

2 answers:

Valentin [98]3 years ago

8 0

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Formula
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Area of circle = πr²

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Find radius
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πr² = 75
r² = 75 ÷ π
r² = 23.87
r = √23.87
r = 4.89 cm (nearest hundreds)

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Answer : radius = 4.89cm
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Simora [160]3 years ago

8 0

The answer will be 4.89 but on ttm its 4.9 bc u round so top right on ttm

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Find the quotient 5/18 divided by 2/6

Gnesinka [82]

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3 years ago

Help! What is the average rate of change of f(x)=x^2+3x+6 over the interval -3 less-than-or-equal-to x less-than-or-equal-to 3?

Makovka662 [10]

Answer:

The average rate of change of the function over the interval is 5.

Step-by-step explanation:

Average rate of change of a function:

The average rate of change of a function f(x) over an interval [a,b] is given by:

$A = \frac{f(b)-f(a)}{b-a}$

Interval -3 less-than-or-equal-to x less-than-or-equal-to 3

This means that $a = -3, b = 3$

$f(x) = x^2 + 3x + 6$

So

$f(b) = f(3) = (3)^2 + 3(3) + 6 = 9 + 9 + 6 = 24$

$f(a) = f(-3) = (-3)^2 + 3(-3) + 6 = 9 - 9 + 6 = 6$

Average rate of change

$A = \frac{f(b)-f(a)}{b-a} = \frac{24+6}{3-(-3)} = \frac{30}{6} = 5$

The average rate of change of the function over the interval is 5.

8 0

3 years ago

|2x + 5| = 13 please show work

gtnhenbr [62]

Answer:

x=4

Step-by-step explanation:

|2x + 5| = 13

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Read 2 more answers

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Step-by-step explanation:

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6 0

4 years ago