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lapo4ka [179]
3 years ago
14

Evaluate b – 2 a – c for a = –7, b = 3, and c = –7.

Mathematics
2 answers:
Valentin [98]3 years ago
8 0

Answer: 24

Step-by-step explanation:

Given :

b - 2a - c

a = - 7

b = 3

c = - 7

Substituting the values into the expression , we have

3 - 2 ( - 7 ) - ( - 7 )

⇒ 3 + 14 + 7

= 24

Lubov Fominskaja [6]3 years ago
7 0

Answer:

24 is the sum

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=536870912

Step-by-step explanation:

\frac{\left(2^3\right)^{10}\cdot \:2^{-8}}{2^{-7}}\\\mathrm{Cancel\:}\frac{\left(2^3\right)^{10}\cdot \:2^{-8}}{2^{-7}}:\quad \frac{\left(2^3\right)^{10}}{2}\\\frac{\left(2^3\right)^{10}\cdot \:2^{-8}}{2^{-7}}\\\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=\frac{1}{x^{b-a}}\\\frac{2^{-8}}{2^{-7}}=\frac{1}{2^{-7-\left(-8\right)}}\\=\frac{\left(2^3\right)^{10}}{2^{-7-\left(-8\right)}}\\\mathrm{Subtract\:the\:numbers:}\:-7-\left(-8\right)=\\=\frac{\left(2^3\right)^{10}}{2}

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4 years ago
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MissTica

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hey girl!

your answer would be 5 a²b²

I did this in my test review and I really hope this helped

bye friend <3

Step-by-step explanation:

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