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Strike441 [17]
3 years ago
13

What is the answer to and how to solve7(11c+3)

Mathematics
2 answers:
TiliK225 [7]3 years ago
5 0

Answer:

77c + 21

Step-by-step explanation:

7(11c + 3)

= 7*11c + 7*3

= 77c + 21

Scilla [17]3 years ago
4 0

Answer:

I got 77c+21

Step-by-step explanation:

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What is the surface area of the square pyramid?
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A cubed-shaped box has its side lengths decreased by 3 cm, when this happens, the volume decreases by 1385cm^3. What is the side
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Step-by-step explanation:

let side of cube=x cm

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again side=(x-3) cm

volume=(x-3)³ cm³

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9x²-27x+27=1385

9x²-27x+27-1385=0

9x²-27x-1358=0

x=\frac{27\pm\sqrt{(-27)^2-4*9*(-1358)} }{2*9} \\x=\frac{27\pm\sqrt{729+48888} }{18} \\or~x=\frac{27\pm\sqrt{49617} }{18} \\or~x=\frac{27\pm 222.749}{18} \\taking positive side only as negative sign gives negative length.\\or~x=\frac{27+222.749}{18} \\or~x\approx13.87

3 0
3 years ago
The Empire State Building weighs about 7.3×108pounds. The One World Trade Center building weighs about 88,200,000 pounds. What i
In-s [12.5K]

Answer:

8.182X10^8 $pounds

a=8.182 and b=8

Step-by-step explanation:

Weight of the Empire State Building =7.3X 10^8 pounds.

Weight of the One World Trade Center building= 88,200,000 pounds.

=8.82 X 10^7

The addition of the two:

=7.3X 10^8+8.82 X 10^7\\$To make it easier to add, express both as powers of 8\\=7.3X 10^8+0.882 X 10^8\\=(7.3+0.882)X10^8\\=8.182X10^8 $ pounds

Comparing with the form: aX10^b

a=8.182 and b=8

4 0
3 years ago
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