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monitta
3 years ago
13

Simplify negative 3 and 1 over 9 − negative 8 and 1 over 3.

Mathematics
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

-11 4/9

Step-by-step explanation:

-3 1/9 minus 8 1/3 with common denominators would be -3 1/9 minus 8 3/9, and that would be -11 4/9.

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What is the solution to –4(8 – 3x) ≥ 6x – 8?
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Answer:

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Step-by-step explanation:

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3 years ago
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A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of 64 ft3. what dimensions y
Doss [256]

To solve this problem you must apply the proccedure shown below:

1. You must use the formula for calculate the surface area and the volume of the tank:

1) SA=x^{2} +4xy\\ 2) V=x^{2} y\\ 64=x^{2} y

2. Solve for y in the second equation and substitute it into the first one.Then, you have:

y=\frac{64}{x^{2}}  \\ SA=x^{2} +4x(\frac{64}{x^{2}})

3. Now, derivate:

SA'=2x-256x^{-2} \\ 2x-256x^{-2}=0

4. When you solve for x, you obtain:

2x^{3}-256=0\\ x=\sqrt[3]{\frac{256}{2}}  \\ x=5.03

5. Now, you must calculate y:

y=\frac{64}{(5.03)^{2}} \\ y=2.52

Therefore, the dimensions are:

The sides of the base of the tank: 5.03 feet

The height of the tank: 2.52 feet

8 0
3 years ago
How many times can 8 go in to 1220
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1220/8= 152.5
So 8 can go into 1220 152.5 times
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3 years ago
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