4 years ago

All lines measure exactly 150?

Mathematics

1 answer:

Charra [1.4K]4 years ago

4 0

Answer:

No. They measure to be exactly 180 degrees.

Step-by-step explanation:

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-9.2 x 4.5 x -2.1 = ?

swat32

Answer:

the answer is 86.94......

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3 years ago

Choose the inequality that could be used to solve the following problem.

Pie

Answer:

3x = - 6

Step-by-step explanation:

Three times a number is at most negative six

3 times a number would be 3 times x, is means the equal sign (=)

3x = - 6

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3 years ago

Read 2 more answers

The mean number of hours of part-time work per week for a sample of 317 teenagers is 29. If the margin of error for the populati

Shtirlitz [24]

Answer:

The degrees of freedom are given by:

$df=n-1=317-1=316$

And replaicing we got:

$29-2.1=26.9$

$29+2.1=31.1$

The 95% confidence interval would be between 26.9 and 31.1

Step-by-step explanation:

Information given

$\bar X= 29$ represent the sample mean

$\mu$ population mean

s represent the sample standard deviation

$ME= 2.1$ represent the margin of error

n represent the sample size

Solution

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And this formula is equivalent to:

$\bar X \pm ME[/te]xThe degrees of freedom are given by:[tex]df=n-1=317-1=316$

And replaicing we got:

$29-2.1=26.9$

$29+2.1=31.1$

The 95% confidence interval would be between 26.9 and 31.1

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4 years ago

A new car is purchased for 27,000 dollars. The value of the car depreciates at a rate of 6% per year. Which equation represents

e-lub [12.9K]

Y=24000-3000x let me know if i’m wrong please

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2 years ago

Help me please show your work

Elenna [48]

C = 1.1b

constant = 1.1

hope it helps

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3 years ago