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gavmur [86]
3 years ago
11

AC=3x+3, AB=-1+2x and BC= Find x

Mathematics
1 answer:
sukhopar [10]3 years ago
5 0
Set AC and AB equal to each other
3x+3=-1+2x
put your Xs on one side.
subtract 2x on each side.
1x+3=-1
subtract your 3 from each side.
1x=-4
divide
x=-4
to find BC, plug in x into the equation if it tells you to.
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A​ university's administrator proposes to do an analysis of the proportion of graduates who have not found employment in their m
stepan [7]

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Step-by-step explanation:

From the question, we see that population proportion (p) = 0.15

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The population standard deviation (s) for this data set is

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√ 0.15 × 0.85 = 0. 1275

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The critical value (c) for Constructing a 99 % confidence interval for population mean is = 2.58

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We want to make n subject of the formulae, we have that

m = c√p'(1-p') /√n

m×√n = c × √p'(1-p')

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n = c² × {√p'(1-p')}² / m

n = 2.58² × 0.1275/ 0.05²

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4 0
3 years ago
Read 2 more answers
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6 0
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stiv31 [10]
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