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3 years ago

Find the missing factor. Write your answer in exponential form. 8^-1 = _ • 8^-2

Mathematics

1 answer:

pochemuha3 years ago

4 0

Answer:

The answer is 8, so 8^1

Step-by-step explanation:

You add and subtract exponents when multiplying and dividing.

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A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose 1/10 degree every 1/4 hour for

klio [65]

Answer:

The rate is $\frac{2}{5}$ degree per hour.

Step-by-step explanation:

Given : A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose $\frac{1}{10}$ degree every $\frac{1}{4}$ hour for a limited time.

To find : What was the rate, in degrees per hour that the temperature of the compound rose ?

Solution :

In every $\frac{1}{4}$ hour the temperature of a compound rose $\frac{1}{10}$ degree

To get the rate, in degrees per hour,

In every 1 hour the temperature of a compound rose is

$r=\dfrac{\frac{1}{10}}{\frac{1}{4}}$ degree

$r=\dfrac{4}{10}$ degree/hr

$r=\dfrac{2}{5}$ degree/hr

Therefore, the rate is $\frac{2}{5}$ degree per hour.

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3 years ago

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Liono4ka [1.6K]

Answer:

Step-by-step explanation:

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3 years ago

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stellarik [79]

Answer: what wrong

Step-by-step explanation:

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4 years ago

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A planter weighs 2 pounds and holds 3 pounds of soil. write two equivalent expressions for the total weight of nine planters. th

Anastasy [175]

Planters = (2*9)+(3*9) = 45 the answer is 45

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3 years ago

Write the number in expanded form: 3.15 x 10^3<br> please explain step by step

vivado [14]

Answer:

3150.0

Step-by-step explanation:

You move the decimal point 3 places to the right because the exponent is a positive 3.

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3 years ago