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3 years ago

Solve 5^x=81.2 round to the nearest ten-thousands

Mathematics

1 answer:

Dima020 [189]3 years ago

5 0

Answer:

x = 2.7320

Step-by-step explanation:

To solve 5^x=81.2 for x, take the log of both sides:

log 5^x = log 81.2

There is a rule of logs that allows us to rewrite log 5^x as x log 5.

Thus,

x log 5 = log 81.2, and

x = log 81.2 / log 5

which comes out to:

x = 1.90955603 / 0.698970004 = 2.73 = 2.73195704, which, when rounded to the nearest ten thousandths, yields:

x = 2.7320

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Answer:

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Step-by-step explanation:

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3 years ago

Explain how the Quotient of Powers Property was used to simplify this expression.

Simora [160]

Answer:

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Step-by-step explanation:

You have to make the expressions into the same base :

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3 years ago

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Vikki [24]

Answer:

Step-by-step explanation:

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3 0

4 years ago

Let f(x) = 3x3 − 7x2 − 9x + 21 and g(x) = 3x − 7. Find f of x over g of x.

Ronch [10]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

If the equation y² - (K-<br>2y + 2k +1 = 0<br>with equal roots find the value of k

777dan777 [17]

Answer:

y² - (K- 2)y + 2k +1 = 0

equal roots means D=0

D= b^2 - 4ac

a=1, b= (k-2), c= 2k+1

so,

(k-2)^2 - 4(1)(2k+1) = 0

=> k^2 +4 - 8k -4 = 0

=> k^2 -8k = 0

=> k^2 = 8k

=> k= 8k/k

=> k = 8

Therefore the answer is k= 8

Hope it helps........

8 0

3 years ago