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OLga [1]
3 years ago
11

Which would you simplify in order to evaluate the expression when the value of the variable is 2?

Mathematics
2 answers:
Tpy6a [65]3 years ago
6 0

Answer:

<h2>C. 8.9(2)</h2>

Happy to help!

vovangra [49]3 years ago
6 0

Answer:

C

Step-by-step explanation:

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The ratio of volume of a cone and a hemisphere of same base radius and height is?
aliya0001 [1]

Answer:

1/2

Step-by-step explanation:

Since it is given that the cone and the hemisphere have the same height, and since the height of a hemisphere would be equal to its radius, the cones height must also be equal to its base radius.

With this information we can use the respective volume formulas.

Hemisphere:  \frac{2}{3}πr^3

Cone:  \frac{1}{3}πhr^2

Since h (height) = r we can say the cone volume equals:

\frac{1}{3}πr^3

Now to find the ratio we divide the cone volume equation by the hemisphere volume equation

pi and r^3 cancels out from the division and we are left with

ratio = (1/3)/(2/3)

ratio = 1/2

7 0
3 years ago
What is 45 X45?////////////////
Vlad1618 [11]

Answer:

2025!!

Step-by-step explanation:

3 0
3 years ago
What is the volume of this triangular prism??
zhannawk [14.2K]

Answer:

Step-by-step explanation:

the answer is 210 m (3)

3 0
3 years ago
Read 2 more answers
There are 84 jars of jelly on a shelf at the store. Of these, 21 are grape. What percent of the jars of jelly are grape?​
Vladimir79 [104]

Answer:

25%

Step-by-step explanation:

Start by dividing 84 by 4 and you get 21. Then take 100 and divide that number by 4, and you get 25. There is your answer. The 21 jars of grape jelly are equal to 25% of the number 84. Hope this helps!

5 0
2 years ago
What is the solution set of 7x 2 + 3x = 0?<br><br> {0, 3/7}<br> {0, -3/7}<br> {0, -4/7}
Burka [1]

Answer:

the answer is b when we have two positives it makes a negitive therefore its b

Step-by-step explanation:

4 0
3 years ago
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