3 years ago

Look at the system of equations below.

Mathematics

1 answer:

tatuchka [14]3 years ago

4 0

Answer:

Trevor is right

Step-by-step explanation:

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Find the slope in (-2,8) and (1,6)

Salsk061 [2.6K]

Formula for slope: $\frac{y2 - y1}{x2 - x1}$

y₂: 6

y₁: 8

x₂: 1

x₁: -2

Plug them into the slope equation:

$\frac{6 - 8}{1 - (-2)}$

--> $\frac{-2}{1 + 2}$

---> $-\frac{2}{3}$

The slope is $-\frac{2}{3}$ .

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3 years ago

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20) In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at

Allisa [31]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

n = 1200

x = 32% of 1200

So, $\hat{p}=32\5=0.32$

We need to find 95% confidence interval.

so, z = 1.96

So, margin of error would be

$z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\=1.96\times \sqrt{\dfrac{0.32\times 0.68}{1200}}\\\\=1.96\times 0.0135=$

So, Interval would be

$\hat{p}\pm \text{margin of error}}\\\\=0.32\pm 0.0263\\\\=(0.32-0.0263,0.32+0.0263)\\\\=(0.2937,0.3463)\\\\=(0.294,0.346)\\\\=(29.4\%,34.6\%)$

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3 years ago

What is the slope of the linear function represented in the table? -7 -1/7 1/7 7

rewona [7]

Answer:

m=1/7

Step-by-step explanation:

Labeled the points and used Slope of a line formula.

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5≤x≤9 it can also be reversed as 9≥x≥5 which is the same thing

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The answer is probably 590,000 because isn't it subtraction

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