4 years ago

Answer please????????????

Mathematics

1 answer:

GalinKa [24]4 years ago

6 0

Answer:

i can help you i just need a clearer picture

Step-by-step explanation:

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Find the area of each sector. Show your work.

hodyreva [135]

Area of the shaded sector = (120/360) * pi * 10^2

= 104.72 square units

Area of the other sector = 2 * 104.72 = 209.44 sq units

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3 years ago

How do I show work to simplify (1/2)^4?

Tju [1.3M]

Show how you did it step by step?

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4 years ago

The circumference of a circle can be found using the formula C=2*3.14r

alexdok [17]

C=2πr

C=πd

A=πr^2

r=C/2π

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3 years ago

Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations.

ki77a [65]

Answer:

The variance is $\sigma ^2 =25$

Step-by-step explanation:

From the question we are told that

The sample size is n = 21

The sum of squares is $SS = 500$

Generally the variance is mathematically represented as

$\sigma ^2 = \frac{SS}{n- 1}$

substituting values

$\sigma ^2 = \frac{ 500}{21- 1}$

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3 years ago

Name the property of equality that justifies going from the first statement to the second statement.

klemol [59]

The answer would be B

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3 years ago