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3 years ago

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Graph the system of linear inequalities. Please help!

1 answer:

Ugo [173]3 years ago

8 0

Answer: Third option is correct

Step-by-step explanation: The y-intercepts match the constants (b in y=mx+b format) The y-values shaded above the line y≥2x+4 are correct. The y-values shaded in the region below the y≤2x -2 are also correct.

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3(t−2)=−1 What value of t t makes the following equation true?

pashok25 [27]

Answer:

t=5/3

Step-by-step explanation:

in order to get our answer, we have to first open it up which comes to 3t-6=-1

next,we have to isolate the variable, so we add (6) to (-1)

then we get 3t=5

so, t=5/3

4 0

4 years ago

Miranda was babysittingfor a friends parents saturday morning and was paid $12.50 per hour. Later that evening, she was babysitt

Shkiper50 [21]

Answer:

10-20 dollars per hour

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3 years ago

Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the st

kari74 [83]

The margin of error of the random selection is 0.20

The given parameters are:

$n = 420$ --- the sample size

$\sigma = 1.6$ --- the standard deviation

$\bar x = 10$ --- the mean

$\alpha = 99\%$ --- the confidence level.

The margin of error (E) is calculated as follows:

$E = z \times \sqrt{\frac{\sigma^2}{n}}$

So, we have:

$E = z \times \sqrt{\frac{1.6^2}{420}}$

$E = z \times \sqrt{\frac{2.56}{420}}$

The z-value for 99% confidence level is 2.576.

Substitute 2.576 for z

$E = 2.576 \times \sqrt{\frac{2.56}{420}}$

$E = 2.576 \times \sqrt{0.006095}$

Take square roots

$E = 2.576 \times 0.0781$

Multiply

$E = 0.2012$

Approximate

$E = 0.20$

Hence, the margin of error is 0.20

Read more about margin of error at:

brainly.com/question/14396648

8 0

3 years ago

Read 2 more answers

Which of the following World Record times from Track and Field is least

Gre4nikov [31]

I think the answer is B. Or A.

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3 years ago

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Will Mark The Brainliest. Write an equation of the line graphed in slope-intercept form using the variables x and y.

baherus [9]

Answer:

$\boxed{y=-2x+5}$

Step-by-step explanation:

The equation in slope-intercept form is given by:

$y=mx+c$

where $m$ is the slope and $c$ is the y-intercept.

The given line passes through so many points. We can use any two these points to find the slope of the line.

The line passes through $(x_1,y_1)= (1,3)$ and $(x_2,y_2)=(2,1)$ .

The slope is given by;

$m=\frac{y_2-y_1}{x_2-x_1}$ .

$\Rightarrow m=\frac{1-3}{2-1}$ .

$\Rightarrow m=\frac{-2}{1}=-2$ .

The y-intercept from the graph is $c=5$

Our equation finally becomes;

$y=-2x+5$

8 0

3 years ago

Read 2 more answers