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2 answers:

5 0

Answer:

The answer is B: (81m²n⁵)/8

Step-by-step explanation:

Find the attachment below for a step by step explanation.

3 0

<u>Answer:</u>

$\frac{81m^2n^5}{8}$

<u>Step-by-step explanation:</u>

We are given the following expression and we are to simplify it:

$\frac { (3 m^ {-1} n^2 )^ 4} {( 2m ^ {-2} n ) ^3}$

Expanding the terms in both the numerator and the denominator by multiplying them with their whole powers to get:

$= \frac{3^4m^{-4}n^8}{2^3m^{-6}n^3}$

$=\frac{81m^{(-4+6)}n^{(8-3)}}{8}$

Cancelling all the like terms to get:

$=\frac{81m^2n^5}{8}$

Therefore, option B is the correct answer.

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sukhopar [10]

Plug in 2 wherever you see 'a'

3(2) + 5(2)(2)

1. 3×2 = 6, so:

6 + 5(2)(2)

2. 5×2=10, 10×2=20, so:

6 + 20

The final answer is 26.

6 0

3 years ago

Nataly_w [17]

Answer:

$23.42

Step-by-step explanation:

To find the sales tax, you need to 6.5% of $21.99
To do this you have to times need to turn 6.5% into a decimal, which is 0.065 (i moved decimal point 2 numbers to the left)
then you do 0.065 × 21.99 which equals 1.42935
now you have to add 21.99 with 1.42935 = 23.41935
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making the answer $23.42 total

8 0

3 years ago

Inessa [10]

Answer:

1. $xy = 63$