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zimovet [89]
3 years ago
7

Please help me with this question

Mathematics
1 answer:
iris [78.8K]3 years ago
6 0
A= \pi r^2  \ \ \ and \ \ \ C=2 \pi r \ \ \ \ \to \\  \\  \cfrac{\pi r^2 }{2 \pi r}= \cfrac{22}{1}    \ \  \ \ \to \ \ \ \ \    \cfrac{ r }{ 2}= \cfrac{22}{1} \ \  \ \ \to \ \ \ \ \ r=22*2=44 \ cm \\  \\  \\  C=2 \pi r=2*3.14*44=276.32  \ cm

Answer is 276.32 cm
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Answer:

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Step-by-step explanation:

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y - 8 = 5x - 5

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y = 5x + 3 <-----------the slope-intercept form

4 0
3 years ago
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73.77 ft/s

Step-by-step explanation:

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#Take the derivative of the first equation and solve for dz:

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dz=\frac{7*66^2+14(14*7+160)}{\sqrt{(66*7)^2+7*14+160}}\\\\=73.78

Hence, the rate of change of the distance between the motorcycle and the balloon 7 seconds ​later is 73.77 ft/s

3 0
3 years ago
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lara [203]
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3 years ago
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7 0
3 years ago
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prohojiy [21]

Answer:

it is C.

Step-by-step explanation:

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7 0
2 years ago
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