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1 year ago

Find the area of a circle with radius 2cm, leave your answer in terms of pi

Mathematics

2 answers:

vaieri [72.5K]1 year ago

5 0

Answer:

$Area = 4 \pi \ cm^2$

Step-by-step explanation:

$Area = \pi r^2 = \pi \times 2^2 = 4 \pi \ cm^2$

snow_tiger [21]1 year ago

5 0

Answer:

A = 4 cm squaree

this us because u multiply π r and square it. sorry if it's confusing

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If (x - 4) varies inversely as (y + 3) and x = 8 when y = 2, what is x when y = - 1?

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Answer:

$x=14$

Step-by-step explanation:

If two values are inversely proportional, their product must be maintained. That way, if one value goes up, the other goes down by the same extent.

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Hence, the maintained product is $20$ .

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