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Stels [109]
2 years ago
10

6(2a + b) + b A. 12a + 12b B. 12a + 7b C. 8a + 8b D. 8a – 8b

Mathematics
2 answers:
Nesterboy [21]2 years ago
6 0

Answer:

Step-by-step explanation:

6(2a + b ) +b

12a + 6b +b

12a + 7b

so  answer B looks good

icang [17]2 years ago
3 0

Answer: B) 12a+7b

Step-by-step explanation:

6(2a+b) +b

12a+6b+b

Combine like terms

12a+7b

Therefor B is correct

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2. The electrical resistance R of a wire varies inversely with the square of its diameter d. If a wire with a
Mariulka [41]

Answer:

0.225 \Omega =225 m\Omega

Step-by-step explanation:

We know (Ohm second law) that R= \frac{k}{d^2} where k inlcudes the rest of the parameters (material, lenght). In our situation we have k= 0.4\cdot9 \Omega mm^2. The moment the diameter becomes 8mm R becomes

R= {{0.4\cdot 9}\over{16}} \Omega = 0.225 \Omega

4 0
3 years ago
Perform the requested operation or operations. f(x) = x-5/8 g(x) = 8x + 5 find g(f(x))
NARA [144]
Just to confirm is it x-5/8 or (x-5)/8
5 0
3 years ago
Read 2 more answers
Find the value of each power (1.2)^2
egoroff_w [7]

Answer:

1.44

Step-by-step explanation:

To solve this problem all you have to do is multiply the number in the parentheses the number of times the exponent is.

1.2 x 1.2 = 1.44

Hope this helps :)

3 0
3 years ago
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sdas [7]

Answer: The cost will be the same on month 5.

Step-by-step explanation:

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5 0
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Answer:

I believe its

y plus 4 multiplied by 3

Hope this helps!

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