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Natalka [10]
3 years ago
8

A circle with radius of 6 cm sits inside a circle with a radius of 9 cm, what is the area of the shaded region?

Mathematics
1 answer:
SpyIntel [72]3 years ago
4 0

Answer:

128.8cm^2

Step-by-step explanation:

area of circle with radius 6cm = π6^2

area of circle with radius 9cm = π9^2

shaded region is equal to π9^2 - π6^2

which is 41π

therefore the shaded region is = 128.8cm^2

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Answer:

-15/4 > -3 3/8

Step-by-step explanation:

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Mademuasel [1]

we are given with the data of a parabola with vertex at (2, 2) and directrix at y  = 2.5. the formua should be ax^2 + b x + c = y because of the directrix. 

(x-h)^2 = 4a (y-k)

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2 years ago
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Answer:

Option A, \frac{1}{7}

Step-by-step explanation:

<u>Step 1:  Determine the numbers that are multiples of 3</u>

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34 → Not a multiple of 3

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<u>Step 2:  Determine the probability of chosing a multiple of 3</u>

Since we only have 1 number that is a multiple of 3 out of the 7 given numbers, that means that we do the following:  

\frac{(1\ multiple\ of\ 3)}{7\ total\ numbers}

\frac{1}{7}

Answer: Option A, \frac{1}{7}

6 0
2 years ago
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