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Lilit [14]
3 years ago
15

Solve 3^2x+3 = 243 for x. A. x = 1 B. x = 10 C. x = 2 D. x = 2/5

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0
First get rid of the exponent: 6x + 3 = 243. then subtract 3 from both sides: 6x = 240. lastly divide both side by 6: x = 40. be sure to check your work by plugging it back in.
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3n-5=-48-40n. Please help . I need the steps to solve and the answer
liraira [26]

3n-5=-48-40n

Move -40n to the other side. Sign changes from -40n to +40n.

3n+40n-5=-48= -48-40n+40n

3n+40n-5=-48

Move -5 to the other side.

3n+40n-5+5=-48+5

3n+40n=-43

43n=-43

Divide by 43 for both sides

43n/43=-43/43

n=-1

Answer: n=-1

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Step-by-step explanation:

The formula to calculate the volume of the cone is:

+) <em>Volume of a cone = 1/3 x Area of base x Height</em>

<em />

The base of the cone is a circle, so that the formula to calculate the are of the base is: <em>Area of base = </em>\pi x radius^{2}

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So the answer is C

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