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2 years ago

Solve the linear equation: 3(4 + 2b) - b = 27 A b = 15 B b = 5 C b = 3 D b = -3

Mathematics

1 answer:

nikklg [1K]2 years ago

6 0

Answer:

Multiply the numbers in parentheses by 3.

Which gives you 12 + 6b - b =27

Combine like terms

12 + 5b = 27

Then subtract 12 from both sides

Which leaves you with

5b = 15

Divide both side by 5

which gives you

answer C

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Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

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