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3 years ago

multiply or divide . keep your answer in scientific notation(MCC.8.EE.4) (4 x 10 4) (2.1 X10 9 ) B. 8 x 10 8 2 x 10 2

Mathematics

1 answer:

katrin [286]3 years ago

7 0

Answer:

The correct answer would be 8.4 x 10^13

Step-by-step explanation:

To multiply two different scientific notations, multiply the bases and add the exponents. These would be the rules to making sure that you get the correct answer.

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2 years ago

Pls Help me with this answer

snow_lady [41]

Answer:

a. 5

b. -3

Step-by-step explanation:

a. (5*(8^1/3 + 27^1/3)^3)^1/4

= ((40^1/3 + 135^1/3)^3)^1/4

≈ ((3.42 + 5.13)^3)^1/4

≈ (8.55^3)^1/4

≈ 625^4

= 5

b. 64^-1/3*(64^1/3 - 64^2/3)

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= -12*1 / 4

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Hope this helped :3

8 0

2 years ago

Find the average rate of change for the given function from x = −1 to x = 2.

GREYUIT [131]

Well, if you look at the graph, when x = -1, y or f(x) = 4.

and when x = 2, y = 0.

$\bf slope = m = \cfrac{rise}{run} \implies 
\cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby 
\begin{array}{llll}
average~rate\\
of~change
\end{array}\\\\
-------------------------------\\\\
\begin{cases}
x_1=-1\\
x_2=2
\end{cases}\implies \cfrac{f(2)-f(-1)}{2-(-1)}\implies \cfrac{0-4}{2+1}\implies \cfrac{-4}{3}$

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2 years ago