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tresset_1 [31]
3 years ago
13

What is the volume of the sphere shown below?

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

Step-by-step explanation:

r = 12

V = 4*pi * r^3 / 3

V = 4 * 3.14 * 12^3 /3

V = 4 * 3.14 * 1728 / 3

V = 4 * 5425.92 /3

V = 21703.68/3

V = 7234.56

None of the answers look correct.

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Naomi can text 90 words in 12 minutes. At this rate, how many minutes would it take her to text 165 words?
AVprozaik [17]
To find the answer you have to see how many words see can type in a minute. To do that you can divide 90 into 12. You will get an answer of 7.5. Now that you know she can type 7.5 words per minute you can divide 165 in to 7.5. Will get an answer of 22. She will take 22 minutes to text 165 words.
5 0
3 years ago
A triangle with a height of 12
mezya [45]

Answer: 7 Inches

Step-by-step explanation:

From the above question, we were provided with the height of the triangle which is 12 Inches and the subsequent area which is 42, and the question was to find the base of the triangle. One of the formula for the area of a triangle is the:1/2(b*h).

From here,we substitute h for the value 12 and we will have 1/2(b*12)=84.Cross multiply and we have something looking like this:12b=84,then divide both sides by 12 and we have our answer as 7 inches.

6 0
3 years ago
How many half- dollars are in 75cents?
blagie [28]
One, half a dollar is 50 cents
5 0
3 years ago
Read 2 more answers
Point C'(-4,-3)
Arlecino [84]

Answer: 2 units to the left

Step-by-step explanation:

5 0
3 years ago
510 exercise books were shared among schools X, Y and Z. such that Z had 3/2 times as much as Y; and Y had 3 times as much as X.
ycow [4]
Overall, the goal is to find the value of x and then use this and the given total to find the percentage of x. First, to do this, we must set up our equations based on the given information.

x + y + z = 510

z = (3/2)y

y = 3x

Now, we can begin to solve with substitution. The ultimate goal is to get the first equation to be regarding one variable and them work backwards using that found value.
Substitute the 3rd equation into the second.

z = (3/2)(3x) ----> Simply
z = (9/2)x

Now, when we plug in z and y into the first equation, only x will be present.

x + (3x) + (9/2)x = 510 ---> Combine like terms.
4x + (9/2)x = 510 ---> Get a common denominator.

(8/2)x + (9/2)x = 510

(17/2)x = 510 -----> Multiply both sides by 2/17

Now, if you understand what you are looking at, you know that you just found your answer which is 2/17 because you are about to multiply that by the total.

2/17 = .12 × 100 = 12%

If you did not know that, you can continue solving and then find the answer using part over whole or the total books of school x divided by the total books from all schools. You will get the same answer!

x = (2/17)×510
x = 60

60/510 = .12 × 100 = 12%

I hope this helps!





8 0
4 years ago
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