3 years ago

What number is represented by 8^-3

Mathematics

1 answer:

blsea [12.9K]3 years ago

4 0

Fraction: 1/512
decimal: 0.001953

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For the inverse variation equation xy=k, what is the constant of variation,k, when x = -3and y=-2

const2013 [10]

Answer:

Step-by-step explanation:

xy=k

Value of k ; when ; x = - 3 and y = - 2

Put x = - 3 and y = - 2 into the equation :

(-3)(-2) = k

-3 * - 2 = k

6 = k

The constant of variation k = 6

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3 years ago

Th the mean of the data is set 15 what number is missing<br> 18,16_,9,12,23

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Answer:

The missing number on the given data set is 12.

Step-by-step explanation:

Here, the set of data = 18,16_,9,12,23

Let us assume the missing number in the data = m

The mean of the data = 15

Total number of observations = 6

Now, Sum of the data = 18 + 16 + m + 9+ 12+ 23 = 78 + m

Also, $\textrm{ Mean of the given Data} = \frac{\textrm{Sum of all observation in the data}}{\textrm{Total number of observations}}$

$\implies 15 = \frac{78+ m}{6} \\or, 15(6) = 78 + m\\\implies m = 90 -78 = 12$

or, m = 12

Hence, the missing number on the given data set is 12.

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3 years ago

Monique made several batches of soup for a potluck supper. Each batch required 3/4 of a pound of potatoes, and she used a total

Rina8888 [55]

Answer:

B and E

Step-by-step explanation:

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Savannah loves to talk on her cell phone . she has $100 in her budget to pay this month's cell phone bill. her cell phone plan i

Serhud [2]

Answer:

200 minutes

Step-by-step explanation:

$20/$0.10=200

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3 years ago

What is 5 4/9 - 2 5/9

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Answer:

5 4/9 - 2 5/9= 26/9 or 2 8/9

Step-by-step explanation:

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2 years ago