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Black_prince [1.1K]
3 years ago
5

Find the volume of the sphere to the nearest whole value. The volume is ________ in3

Mathematics
1 answer:
Kamila [148]3 years ago
5 0
1. V=\frac{4}{3}  \pi 4.5^{3} =  \pi*  \frac{243}{2} =381.7in^{3}
2. For the surface area cm² is appropriate because you're finding the area of the surface (in 2nd dimension).
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Is 4/6 more less or equal to half
olasank [31]

Answer:

more

Step-by-step explanation:

4/6 simplified is 2/3

3/6 would be half

7 0
3 years ago
How May I Draw My number Line And Where Would My Numbers Go?
Digiron [165]
.5 is basically 1/2. We know this because .5 written as a fraction is 50/100 which you can simplify to 1/2.

6/10 is greater than 1/2. You can find this out by converting 1/2 to tenths. Multiply the numerator and the denominator by 5 to get 5/10. From there you can easily see that 6/10 > 5/10.

As for the number line simply use 10ths: 1/10, 2/10, 3/10 ... and input 6/10 and 5/10 in the appropriate areas.
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3 years ago
Ronald is calculating the time required to fill the swimming pool at school. He found that it takes 15 minutes to fill the swimm
Alik [6]

Answer:

C. 9 gallons per minute

Step-by-step explanation:

Divide 135 by 15 to see how many gallons he can fill in one minute.

135 ÷ 15 = 9

Hope this helps!

6 0
2 years ago
Fill in the blank:<br><br><br>5/12 * __ = 1
Kisachek [45]

Answer:

2.4

Step-by-step explanation:

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5 0
2 years ago
Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65
Verizon [17]
A) 0.9803; 0.4803
B) 32

We calculate the z-score for this problem by using the formula:

z=\frac{X-\mu}{\frac{\sigma}{\sqrt{n}}}

Using our formula, we have:

z=\frac{3.00-2.65}{\frac{0.85}{\sqrt{25}}}=2.06

Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this score is 0.9803.

To find the probability it is between the mean and this, we subtract the probability associated with the mean (0.5) from this:
0.9803 - 0.5 = 0.4803.

To find B, we first find the z-score for this.  Using a z-table (http://www.z-table.com) we see that the closest z-score would be 2.33.  We then set up our equation as

2.33=\frac{3.00-2.65}{\frac{0.85}{\sqrt{n}}}=\frac{0.35}{\frac{0.85}{\sqrt{n}}}&#10;\\&#10;\\2.33=0.35\div \frac{0.85}{\sqrt{n}}=0.35\times \frac{\sqrt{n}}{0.85}

Multiplying both sides by 0.85 we have
2.33(0.85) = 0.35√n
1.9805 = 0.35√n

Divide both sides by 0.35:
1.9805/0.35 = √n

Square both sides:
(1.9805/0.35)² = n
32 ≈ n
8 0
3 years ago
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