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Elan Coil [88]
3 years ago
8

I need help understanding square roots

Mathematics
1 answer:
Vlad [161]3 years ago
6 0

I wonder if you mean to write \sqrt[3]{256} in place of 3\sqrt{256}...

If you meant what you wrote, then we have

\sqrt{256}=\sqrt{16^2}=16

3\sqrt{256}=3\cdot16=48

If you meant to write \sqrt[3]{256} (the cube root of 256), then we could go on to have

\sqrt[3]{256}=\sqrt[3]{16^2}=\sqrt[3]{(4^2)^2}=\sqrt[3]{4^4}=\sqrt[3]{4^3\cdot4}=4\sqrt[3]4

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The volume of a cone is 20π cubic meters. What is the volume of a cylinder with the same base and height?
Sav [38]
60pi..cause cone is one third of a cylinder
3 0
3 years ago
Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. What other factions can represent part
Scilla [17]

Answer:

3/5 can be un-simplified into a number of different fractions. 3/5, 6/10, 12/20, etc.


The way we figure this out is by multiplying each side of the fraction by an integer. Say 2. So if the fraction is 3/4, times the top and bottom by 2 making it 6/8



Step-by-step explanation:


8 0
3 years ago
The weight of water 62 1/2 lb per cubic foot. What is the weight of 29 1/8 cubic feet of water? Simplify the answer using whole
storchak [24]
<span>1 cubic foot of water = 62 1/2 lb or 125/2 pounds  
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3 0
4 years ago
Susan quits her administrative job, which pays $40,000 a year, to finish her four-year college degree. Her annual college expens
MrMuchimi

Answer:

The opportunity cost is $28.600

Step-by-step explanation:

The opportunity cost is the value of the best alternative that is rejected. If Susan goes to college loses what he would win from her salary minus any potential gains from investment in education in college. It can be found as this:

Expenses: 8000 + 900 + 2500 = 11.400

So OCost is: 40.000 - 11.400 = 28600

She would lose 28.600 of income per year because of going to college.

4 0
3 years ago
A line passes through the point (–7, 5) and has a slope of One-half. Which is another point that the line passes through?
irina1246 [14]

Answer:

(13, 9)

Step-by-step explanation:

Make an equation for the line.

y = 0.5x + b

5 = -3.5 + b

b = 8.5

y = 0.5x + 8.5

Plug them into the equation.

(-13, 9) 9 ≠ -6.5 + 8.5

(-9, 13) 13 ≠ -4.5 + 8.5

(9, 13) 13 = 6.5 + 8.5

(13, 9) 13 ≠ 4.5 + 8.5

7 0
3 years ago
Read 2 more answers
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