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Mrac [35]
2 years ago
13

What is (-3)-(-6)×(-9)?

Mathematics
1 answer:
Zepler [3.9K]2 years ago
3 0
(-3)-(-6)×(-9)

Simplify your equation to make it look neater.

(-3)+(6)×(-9)

Combine like terms.

(-3+6)×(-9)

Simplify.

(3)×(-9)

Simplify. Remember, a negative times a positive is ALWAYS a negative. 

-27

~Hope I helped!~




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Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.
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It's a geometric sequence.

4,-12,36,... \\ \\
a_1=4 \\
r=\frac{a_2}{a_1}=\frac{-12}{4}=-3 \\ \\
a_n=a_1 \times r^{n-1} \\
a_n=4 \times (-3)^{n-1} \\
a_n=4 \times (-3)^{-1} \times (-3)^n \\
a_n=4 \times (-\frac{1}{3}) \times (-3)^n \\
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It's the sum for term 4 through term 15.

 \boxed{ \sum\limits_{n=4}^{15} (\frac{4}{3}(-3)^n)}
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Answer:

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Step-by-step explanation:

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The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th
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Now, we'll find the perimeter p. We'll use the formula below:

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The area of a rectangle is S=w\cdot\ell. Then:

S=w\cdot\ell\\\\
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Step-by-step explanation:

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