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3 years ago

The diameter of the larger circle is 12.5 cm.

2 answers:

6 0

If the diameter of the smaller circle is 3.5cm, that means the radius is 1.75cm.The area of the smaller circle is π × 1.75², which is ≈ 9.62112750162.
The diameter of the larger circle is 12.5 cm, so the radius would be half that, which is 6.25cm. The area of the larger circle would be π × 6.25², which is ≈ 122.718463031.
So now that we know the area of the larger circle and the smaller circle, we can find the area of the shaded region by subtracting the area of the smaller circle from the area of the larger circle, which is basically just 122.718463031 - 9.62112750162, which is = 113.097336. The closest answer here is 113.04, hence the answer is 113.04cm².

Amanda [17]3 years ago

4 0

Area of large circle -Area of small circle= Area of shaded region
π·(12.5/2)² -π·(3.5/2)² = π ( 6.25² -1.75²) = π·(39.0625-3.0625)= 3.14·36=113.04 cm²

Answer is B. 113.04cm²

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Answer:

firm deposit is $1667.50

Step-by-step explanation:

given data

buys 12 file = $140

time = 90 days

interest = 3%

solution

we get here return on money over 90 day period is

we know Return on 360 days = 3%

return on money over 90 day = 3% ÷ 4 = 0.75%

we consider here required amount = x

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x = $\frac{1680}{1+0.0075}$

x = 1667.50

so firm deposit is $1667.50

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3 years ago

Anthony is now designing the classroom layout for the school. Each hallway has exactly 5 classrooms. If Anthony has 48 classes t

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Answer:

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Step-by-step explanation:

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2 years ago

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What is the volume of a sphere with a radius of 6 mm?

Mrrafil [7]

Answer:

$V = 904.779\,mm^{3}$

Step-by-step explanation:

The volume of a sphere can be determined by using the following formula:

$V = \frac{4\pi}{3}\cdot r^{3}$

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3 years ago

What is the volume of a pyramid with base area B = 9 ft2 and height h = 11 ft?

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2 years ago

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3 3/5 + 9 3/5 answer with a mixed number in simplest form

Romashka [77]

Both fractions have the same denominator so it's going to be easy. First set up your equation:

$3 \frac{3}{5} + 9 \frac{3}{5}$

Add the whole numbers:

$3 + 9 = 12$

Now add the fractions:

$\frac{3}{5} + \frac{3}{5} = \frac{6}{5}$

add both together:

$12 + \frac{6}{5} = 12 \frac{6}{5}$

$\frac{6}{5}$ is an improper fraction so change it:

$12 \frac{6}{5} = 13 \frac{1}{5}$

Since 6 is one more than 5, add 1 to the whole number and subtract the numerator and denominator(6 - 5 = 1) and make the remaining the new numerator. That leaves you with $13 \frac{1}{5}$

Your answer is $13 \frac{1}{5}$

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2 years ago