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luda_lava [24]
3 years ago
11

Which is the solution to 5^x=8^x-7

Mathematics
2 answers:
Nadya [2.5K]3 years ago
6 0

Answer:

x = 30.97 ( to nearest hundredth).

Step-by-step explanation:

5^x = 8^x-7

Taking logs of both sides:-

ln 5^x = ln 8^x

By the law of logarithms:-

x ln 5 = (x - 7) ln 8

x / (x - 7)  =  ln 8 / ln 5

x / (x - 7) = 1.292

x = 1.292x - 9.044

1.292x - x = 9.044

x = 9.044 / 0.292

=  30.97   (answer)

Alexandra [31]3 years ago
5 0

Answer:

OPTION C = 30.9702

Step-by-step explanation:

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-2 divided by 2 5/6<br> (make a fraction and simplify)
seropon [69]

Answer:

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Step-by-step explanation:

This is the answer because:

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2 5/6 = 17/6

2) Next divide -2/1 and 17/6

3) The reciprocal of 17/6 is 6/17

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Hope this helps!

6 0
3 years ago
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Mamont248 [21]
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∠A and \angle B∠B are vertical angles. If m\angle A=(6x-11)^{\circ}∠A=(6x−11) ∘ and m\angle B=(5x+4)^{\circ}∠B=(5x+4) ∘ , then f
ICE Princess25 [194]

Answer: \angle B=79^{\circ}.

Step-by-step explanation:

When two lines cross each other , then the opposite angles are known  as vertical angles.

Vertical angles are equal.

Here, ∠A and ∠B are vertical angles.

So, ∠A = ∠B

If \angle A=(6x-11)^{\circ} and \angle B=(5x+4)^{\circ}

Then , 6x-11=5x+4

Subtract 5x from both sides, we get

x-11=4

Add 11 on both sides, we get

x=15

Now , \angle B=(5(15)+4)^{\circ}=79^{\circ}

Hence, the measure of \angle B=79^{\circ}.

3 0
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fenix001 [56]

<u><em>25/40</em></u>

Work:

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7 0
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Step-by-step explanation:

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