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3 years ago

I need help!

Mathematics

1 answer:

lina2011 [118]3 years ago

8 0

Answer:

25 have a good day

Step-by-step explanation:

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Two trains station at the same time one travels east at 8 miles per hour .The other train traveles east at 8 millas per hour the

Arturiano [62]

What is your question ? This isn’t clear

4 0

3 years ago

(1/27)^x-6=27 Could I please have a step by step as well? Much appreciated!

Andrei [34K]

Answer:

$x = 7$

Step-by-step explanation:

1) Use Division Distributive Property: (x/y)^a = x^a/y^a.

$\frac{1}{ {27}^{x - 8} } = 27$

2) Multiply both sides by 27^x - 8.

$1 = {27} \times 27^{1 + x - 8}$

3) Use the product rule: x^a x^b = x^a+b.

$1 = {27}^{1 + x - 8}$

4) Simplify 1 + x - 8 to x - 7.

$1 = {27}^{x - 7}$

5) Use Definition of Common Logarithm: b^a = x if and only if logb (x) = a.

$log_{27}1 = x - 7$

6) Use Change of Base Rule.

$\frac{ log_1 }{ log{27} } = x - 7$

7) Use rule of 1: log 1 = 0.

$\frac{0}{ log_{27}} = x - 7$

8) Simplify 0/log_27 to 0.

$0 = x - 7$

9) Add 7 to both sides.

$7 = x$

10) Switch sides.

$x = 7$

Therefor, the answer is x = 7.

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3 years ago

The square root of a number is 12. what is the original number?

Whitepunk [10]

144. The square root of 144 is 12 because 12 x 12 = 144.

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3 years ago

Help me with this question plz

Alik [6]

Answer:

i dont what it could be but my uncle said it was 32 but i dont know if its correct

Step-by-step explanation:

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3 years ago

82 tens is the same as what?

Feliz [49]

82 tens in the same thing as 820 because if you multiply 82 by 10 you get 820

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3 years ago

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