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3 years ago

How do you find the volume of a sphere when the circumference is 16.25

1 answer:

muminat3 years ago

5 0

The formula for Circumference is C= πd (with C being Circumference and D being diameter). You would substitute the information into the equation, to find the diameter. After, finding the diameter divide it by 2 to find the radius. When you find the value of the radius, substitute it into the equation (v=4/3πr^3). Volume equals 4 divided by 3, times pi, times the radius cubes (to the power of 3).

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The box plots below show the lifespan, in months, of laptop batteries manufactured by four companies: box plot labeled Company A

denis-greek [22]

I think the answer would be D. Hope this helps!

7 0

3 years ago

1) Solve for Side A. 2) Solve for Angle B.

avanturin [10]

Answer:

solution given;

let

AB=a

AC=b=30ft

AB=c=20ft

<A=115°

By using Cosine rule.

a²=b²+c²-2bc cos angle

a²=30²+20²-2*30*20 Cos 115°

a²=1807.1419

a=√[1807.1419]

a=42.51

Side A is 42.51ft.

Again

Cos B= $\frac{a²+c²-b²}{2ac}$

Cos B= $\frac{42.51²+20²-30²}{2*42.51*20}$

Cos B=0.7687

<B=Cos -¹(0.7687)

<B=39.46°

Angle B is 39.46

4 0

3 years ago

Read 2 more answers

Determine the point estimate of the population proportion and the margin of error for the following confidence interval.Lower bo

Kamila [148]

Answer: The point estimate of the population proportion is . 485.

The margin of error is 0.273.

Step-by-step explanation:

Confidence interval for population proportion(p):

sample proportion ± Margin of error

Given: Lower bound of confidence interval = 0.212

Upper bound = 0.758

⇒sample proportion - Margin of error=0.212 (i)

sample proportion + Margin of error= 0.758 (ii)

Adding (i) and (ii) , we get

2(sample proportion) =0.970

⇒ sample proportion = 0.970÷2= 0.485

Since sample proportion is the point estimate of the population proportion.

So, the point estimate of the population proportion= 0.485

Now put sample proportion =0.485 in (ii), we get

0.485+ Margin of error= 0.758

⇒ Margin of error= 0.758 - 0.485 =0.273

i.e. The margin of error is 0.273.

5 0

3 years ago

Help me please thanks !

GREYUIT [131]

That’s 125 times 9!!! which is 1125!!!

4 0

3 years ago

2.2y−(y−7.3)÷10=0.1 PLEASE HELP! Answer:

Naddik [55]

Answer:

y = -0.525

Step-by-step explanation:

2.2y - y + 7.3 / 10 = 0.1

1.2y + 0.73 = 0.1

1.2y = -0.63

y = -0.525

6 0

3 years ago

Read 2 more answers