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ivanzaharov [21]
3 years ago
8

A model of a volcano has a height of 12 in., and a diameter of 12 in.

Mathematics
2 answers:
solong [7]3 years ago
6 0

Answer:

452.16 cm³

Step-by-step explanation:

I assume the shape of the volcano is a cone.

V = (1/3)πr²h

r = d/2 = 12 in./2 = 6 in.

V = (1/3)(3.14)(6 in.)²(12 in.)

V = 452.16 in.²

Scilla [17]3 years ago
5 0

Answer:

Step-by-step explanation:

Radius r = 6 inches

Height h = 12 inches

volume of cone = πr²h/3 ≈ 3.14∙6²∙12 = 1,356.48 in³

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the Children's Hospital sponsors a 10k race to raise money. it receives $75 per race entry and $10,000 in donations but it must
masha68 [24]

Answer:

There would need to be at least 1,800 entries in order for them to meet their goal.

Step-by-step explanation:

To find this, we must write an equation that helps solve it. We know that for every entry (x), we gain 75 and lose 25. We can express this as the following.

75x - 25x

Then we can add the number of donations.

75x - 25x + 10,000

Then we can set it as greater than or equal to the goal number.

75x - 25x + 10,000 ≥ 100,000

Now we solve this using the order of operations.

75x - 25x + 10,000 ≥ 100,000 ----> Combine like terms

50x + 10,000 ≥ 100,000 ------> Subtract 10,000

50x ≥ 90,000 -----> Divide by 50

x ≥ 1,800

4 0
3 years ago
Read 2 more answers
PLEASE HELP A rectangular region is removed from another rectangular region to create the shaded region shown below. Find the ar
Mars2501 [29]
<h3>Answer:  shaded region has area 107 square feet</h3>

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Work Shown:

A = area of larger rectangle

A = length*width = 9*15 = 135 square feet

B = area of smaller rectangle

B = length*width = 7*4 = 28 square feet

C = area of shaded region

C = difference in areas of A and B

C = A - B = 135 - 28 = 107 square feet

4 0
3 years ago
Will you do my math homwork
gayaneshka [121]
If you post your questions we could help
7 0
3 years ago
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The average of 8 numbers is 10. the average of 6 of the numbers is 12 what is the average of the other 2 numbers
omeli [17]
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7 0
4 years ago
Help please!!
stepladder [879]

Answer:

it changed 21 Fahrenheit

Step-by-step explanation:

-14.8 - 6.2 = -21

and minus + minus = +

so, -14.8 + 21 = 6.2

i think so that is the right answer

4 0
2 years ago
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