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DochEvi [55]
3 years ago
12

Help me on this fast

Mathematics
2 answers:
zhenek [66]3 years ago
8 0
Okay, we have what a and b equal, so what we can do is replace the a and b in the equation to get the correct answer. As so:

a^3 + 3/4 + 2b
(3)^3 + 3/4 +2(1/8)

Now that we have this equation, we can simplify it all the way until we get one, final number.

(3)^3 + 3/4 + 2(1/8)
27 + 3/4 + 1/4
27 + 1
28.

Hope I could help you out! If my math is wrong, or I didn't give the answer you were looking for, please let me know!
Have a good one!
klio [65]3 years ago
6 0
The answer actually is 28. But I think you should give the other guy brainliest.
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Find 100/20 x 30
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3 years ago
3. Which of the following is an exponential function?
lukranit [14]

Answer:

B is correct I hope this helps.

4 0
2 years ago
An open-top box with a square base is to have a volume of 4 cubic feet. Find the dimensions of the box (in ft) that can be made
Lemur [1.5K]

Answer:

The dimension of box=2ft\times 2ft\times 1ft

Step-by-step explanation:

We are given that

Volume of box=4 cubic feet

Let x be the side of square base and h be the height of box

Volume of box=lbh=x^2h

4=x^2h

h=\frac{4}{x^2}

Now, surface area of box,A=x^2+4xh

A=x^2+4x(\frac{4}{x^2})=x^2+\frac{16}{x}

\frac{dA}{dx}=2x-\frac{16}{x^2}

\frac{dA}{dx}=0

2x-\frac{16}{x^2}=0

2x=\frac{16}{x^2}

x^3=8

x=2

\frac{d^2A}{dx^2}=2+\frac{32}{x^3}

Substitute x=2

\frac{d^2A}{dx^2}=2+\frac{32}{2^3}=2+4=6>0

Hence, the area of box is minimum at x=2

Therefore, side of square base,x=2 ft

Height of box,h=\frac{4}{2^2}=1 ft

Hence, the dimension of box=2ft\times 2ft\times 1ft

5 0
2 years ago
1 divided by 7+3 root 2
slega [8]

Answer:

7-3√2/31

Step-by-step explanation:

Rationalise it and you'll get your answer.

3 0
3 years ago
N.
Elis [28]

Answer:

9

Step-by-step explanation:

36 divided by 4 is 9

5 0
3 years ago
Read 2 more answers
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