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Colt1911 [192]
3 years ago
14

Describe the expression (4x÷2)-9y

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0
<span>(4x ÷ 2) - 9y is difference of two terms.</span>
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Answer: Choice D.  6.44 \times 10^{-4}

========================================================

Work Shown:

We multiply the coefficients 9.2 and 7 to get 64.4, which is the same as 6.44*10^1 in scientific notation. When multiplying exponential expressions with the same base, we add the exponents

This is what the steps could look like

\left(9.2 \times 10^{-9}\right)\times\left(7 \times 10^{4}\right)\\\\\left(9.2\times7\right)\times\left(10^{-9} \times 10^{4}\right)\\\\\left(64.4\right)\times\left(10^{-9+4}\right)\\\\\left(6.44\times 10^{1}\right)\times\left(10^{-5}\right)\\\\6.44\times\left(10^{1}\times 10^{-5}\right)\\\\6.44\times\left(10^{1+(-5)}\right)\\\\6.44\times 10^{-4}\\\\

The final result is in scientific notation as the coefficient c is restricted such that 0 \le c < 10

7 0
3 years ago
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First, we calculate for the effective interest given the annual interest and the condition that it is compounded monthly.

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I believe the answer is 9.

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which rule describes the composition of transformations that maps pre- image ABCD to final image A’’B’’C’’D’’ ?
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We have to find the transformation that maps preimage ABCD to A" B" C"D" .


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Answer:

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Step-by-step explanation:

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