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kvv77 [185]
3 years ago
9

The sum of the areas of two circles is 80π square meters. Find the length of a radius of each circle if one of them is twice as

long as the other.
What is the radius of the larger circle?

Mathematics
2 answers:
aleksley [76]3 years ago
5 0
Am very bad at explaining things but the answer is 8

bonufazy [111]3 years ago
5 0
Pi*r^2 is the area of a circle
if x is the radius of the smaller circle then
pi*(2r)^2+pi*r^2=80pi
5(r^2)pi=80pi
r^2=16
r=4
the larger radius is 2*4=8
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$10.71

Explanation

Step 1

you can easily solve this by using a rule of three.

Let

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Step 2

solve for x

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I hope this helps you

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1 year ago
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Step-by-step explanation:

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otez555 [7]

Answer:

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Step-by-step explanation:

"Of the order x^2" means the dominant behavior matches that of x^2 as x gets large. For polynomial functions, the dominant behavior is that of the highest-degree term.

For other functions, the dominant behavior will typically be governed in some other way. Here, the rate of growth of the x·log(x) function is determined by log(x), which has decreasing slope as x increases.

Only answer selection B has a highest-degree term of x^2, so only that one exhibits O(x^2) behavior.

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Liula [17]

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The image of a translation, reflection, or rotation is congruent to the original figure, and the image of a dilation is similar to the original figure. Two figures are similar when one can be obtained from the other by a sequence of translations, reflections, rotations, and dilations.

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Step-by-step explanation:

6 0
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