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alina1380 [7]
3 years ago
14

3(4a+b) What matches this equation

Mathematics
2 answers:
vivado [14]3 years ago
8 0

Answer:

12a + 3b.

Step-by-step explanation:

3(4a + b)

= 3 * 4a + 3 * b

= 12a + 3b.

Hope this helps!

lana66690 [7]3 years ago
7 0

Answer:

12a+3b

Step-by-step explanation:

\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\\a=3,\:b=4a,\:c=b\\=3\times \:4a+3b\\\mathrm{Multiply\:the\:numbers:}\:3\times \:4=12\\=12a+3b

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On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally dist
KiRa [710]
1) The formula used for determining the confidence interval is
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error of mean
8439 +/- 1.645 * 100/sqrt 25
8439 +/- 1.645 * 20
8439 +/- 32.9
2) The only difference in this case is finding the critical value i.e., z-score corresponding to 92% confidence which is 1.75 approximately
Then the confidence interval is
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6 0
3 years ago
Find the total surface area of the shape
Rina8888 [55]

Answer:

510 ft²

Step-by-step explanation:

in the triangle

base (b) = 5 ft

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Now

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Total surface area

= LSA + 2 * area of triangular base

= 450 + 2 * 1 / 2 * b * h1

= 450 + 5 * 12

= 450 + 60

= 510 ft²

Hope it will help :)❤

4 0
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