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Vitek1552 [10]
3 years ago
5

A storage drum in the shape of a cylinder is 3 feet tall and has a diameter of 4 feet. What is the total surface area of the sto

rage drum? Use 3.14 for Pi and round the answer to the nearest tenth.
Recall the formula S A = 2 pi r squared + 2 pi r h.


A. 20.0



B. 37.7


C. 50.2


D. 62.8
Mathematics
2 answers:
Stels [109]3 years ago
5 0
I’m not sure but i think it’s B 37.7
frozen [14]3 years ago
5 0

Answer:

It's D

Step-by-step explanation:

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Step-by-step explanation:

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1 year ago
A quarter is 1/5 of an inch thick and 5 quarters weigh one ounce. Stephanie built a toothpick bridge that could safely hold 3 po
AleksandrR [38]

Answer:

Maximum height of quarter tower = 9.6 inches.

Step-by-step explanation:

The thickness of a quarter = \frac{1}{5} inches

Weight of a quarter = 1 ounce

The maximum weight that could safely hold = 3 pounds.

<u>The conversion factor for ounce to pound is 1 ounce = 0.0625 pound</u>

The number of quarter used in the tower = no of ounces equivalent to 3 pounds.

No of ounces equivalent to 3 pounds = \frac{3}{0.0625}

No of ounces equivalent to 3 pounds = 48

So the height of quarter tower = 48 \times \frac{1}{5} inches

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4 0
3 years ago
Linda won $200,000 in a state lottery. She first paid income tax on 30% on the winnings. She invested some of the rest at 1.5% a
Lady_Fox [76]

She invested $ 50000 at 1.5% rate and $ 90000 at 4% rate.

<u><em>Explanation</em></u>

Total amount of winnings = $ 200000

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<u>Remaining amount</u> = $ 200000 - $ 60000 = $ 140000

Suppose, she invested  x dollar at 1.5% rate.

That means, she invested (140000-x) dollar at 4% rate.

Given that, the total amount of interest earned = $ 4350

So, the equation will be.....

0.015x+0.04(140000-x)=4350\\ \\ 0.015x+5600-0.04x=4350\\ \\ -0.025x= 4350-5600\\ \\ -0.025x=-1250\\ \\ x= \frac{-1250}{-0.025}=50000

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and amount of investment at 4% rate = $ 140000 - $ 50000 = $ 90000  


5 0
3 years ago
Explain how to model the problem with algebra tiles and
gregori [183]

Answer:someone answer the question already

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
3(12-3y^2) Help solve this please
HACTEHA [7]
Step 1. <span>Distribute

</span>3*12+3*-3 y^{2}
<span>
Step 2. Simplify </span>3*12 to 36

36+3*-3 y^{2}

Step 3. Simplify 3*-3 y^{2} to -9 y^{2}

36-9 y^{2}

Done! :)
5 0
3 years ago
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