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sergiy2304 [10]
4 years ago
5

Can someone help me find the radius please include the steps.

Mathematics
1 answer:
vredina [299]4 years ago
5 0

Answer:

8.00 (3 s.f.)

Step-by-step explanation:

The formula for the area of a circle is:

A = \pi r^2

Thus, the radius can be found by substituting A with 200.96:

200.96 = \pi r^2

\frac{200.96}{\pi} = r^2

r = \pm \sqrt(\frac{200.96}{\pi})

r = 8.00(3.s.f)

We ignore the negative solution as it is impossible for the radius to be a negative value.

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32 meters tall.
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Therefore, you get 7^2 + 24^2 = c^2.
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3 years ago
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The roots of a quadratic equation are (1,0) and (-5,0). What is the axis of symmetry?
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Answer:

Step-by-step explanation:

The axis of symmetry lies exactly halfway between the given x = 1 and x = -5.

The axis of symmetry is x = -2.

The 'halfway' value is also the 'average' of 1 and -5:  -4/2, or -2.

The axis of symmetry is x = -2.

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3 years ago
What is the answer to 3 + (-3)=
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Answer:

0

Step-by-step explanation:

I learned in sixth grade itself eaSy

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You are considering installing a pendulum in the amusement park visitor’s center. The time it takes a pendulum to complete a ful
kykrilka [37]

Answer:

π (3.14) seconds

Step-by-step explanation:

T = 2π√(L/32)

T = 2π√(8/32)

T = 2π√(1/4)

T = 2π(1/2)

T = π

It will take π seconds for the pendulum to complete a full cycle if the pendulum is 8 feet long

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If A, B, and C are mutually exclusive events with P(A) = 0.2, P(B) = 0.3, and P(C) = 0.4, determine the following probabilities:
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a. The events are mutually exclusive, so

P(A\cup B\cup C)=P(A)+P(B)+P(C)=\boxed{0.9}

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P(A\cap B\cap C)=\boxed0

Another way to see this is to use the result from part (a), and the inclusion/exclusion principle:

P(A\cap B\cap C)=P(A)+P(B)+P(C)-P(A\cup B\cup C)

and the right side reduces to 0.

c. Same as (b),

P(A\cap B)=\boxed0

d. Same as (b),

P((A\cup B)\cap C)=\boxed0

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P((A\cup B)\cap C)=P((A\cap C)\cup(B\cap C))=P(A\cap C)+P(B\cap C)=0

e. If the A' is the complement of A, then by DeMorgan's law,

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