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Archy [21]
2 years ago
13

If r = 3.2, what is the area of the shaded region? Round your answer to the nearest hundredth. Use your calculator's value of π.

Mathematics
1 answer:
Lunna [17]2 years ago
8 0

Answer:

99.38

Step-by-step explanation:

the area of all the circles by using the formula A=ℼr2 then filling in r with 3.2 A=ℼ3.22=32.2

Knowing that one circle is 32.2 4 circles would have an area of 128.8

Two circles have a combined length and height of 12.8 because the circumference of one circle is 6.4 so two circles reach the sides of the square. So all the sides of the square are 12.8. So finding the area of the square knowing what the sides are, so the area is a=163.84. To find the shaded area you subtract the volume of the square to volume of all 4 circles which is 163.84-128.8 which equals 35.04. Then you find the volume of the semi circle which is 64.34. Then the combination of both shaded regions is 99.38

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Answer:

24.5 inches need to be cut

Step-by-step explanation:

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3 years ago
According to a recent​ survey, the probability that the driver in a fatal vehicle accident is female​ (event F) is 0.2805. The p
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Question d:

(D) Find the probability of F'nA'

Answer:

0.4140

0.7619

0.2381

0.9576

Step-by-step explanation:

Given that :

Female in fatal accident P(F) = 0.2805

Driver is 24 years or less P(A) = 0.1759

Driver is female and 24 years or less P(FnA) = 0.0424

A.) Find the probability of FUA.

P(FUA) = P(F) + P(A) - P(FnA)

= 0.2805 + 0.1759 - 0.0424

= 0.4140

(b) Find the probability of F'UA.

P(F'UA) = 1 - P(F) + P(FnA)

= 1 - 0.2805 + 0.0424

= 0.7619

C.) P(FnA') = 1 - P(F'UA)

= 1 - 0.7619

= 0.2381

(d) Find the probability of F'nA'

P(F'nA') = (FnA)' = 1 - (FnA)

= 1 - 0.0424

= 0.9576

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2 years ago
Which number in the monomial 125x^18 y^3 z^25 need to be changed to make it a perfect cube
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In order to accumulate enough money for a down payment on a​ house, a couple deposits $608 per month into an account paying 6% c
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Hi there
The formula of the future value of annuity ordinary is
Fv=pmt [(1+r/k)^(kn)-1)÷(r/k)]
Fv future value?
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R interest rate 0.06
K compounded monthly 12
N time 6years
So
Fv=608×(((1+0.06÷12)^(12×6)
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Good luck!
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3 years ago
what is the probability of drawing a silver marble from a bag that contains 4 blue marbles, 7 silver marbles, and 5 green marble
umka21 [38]

Answer:

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Step-by-step explanation:

Well there are 16 marbles in total, and only 7 silver marbles. So the probability of getting a silver marble is 7/16

3 0
3 years ago
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