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3 years ago

Find the slope of a line perpendicular to the line whose equation is 3y + 2x = 6

1 answer:

4 0

$3y + 2x = 6\\ \\the \ slope \ intercept \ form \ is : \\ \\ y= mx +b \\ \\3y=-2x+6 \ \ /:3\\ \\y=-\frac{2}{3}x+\frac{6}{3}\\ \\y=-\frac{2}{3}x +2 \\ \\ m = -\frac{2}{3} \\ \\ Answer : \ slope \ is \ m = -\frac{2}{3}$

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#1) What is the measure of ∠TVU, and why?

mrs_skeptik [129]

1) Answer: A

because trangles RST is similar to VUT as:

<RST=<VUT=55 (Angle)

<RTS=<VTU=90 (it seems right angled) Angle

So by AA similarity...(two angles similarity is enough)

2) Answer:B

y+z=x because exterior angle of a triangle (which is x) must be equal to sum of non-adjacent (y and z) interior angles.

3) Answer: A should be right choice. Step 1 is wrong here which is,

m<m + m<n + m<p=180 (wrong)

It should be:

m<m + m<n + m<0=180 (right)

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3 years ago

HELP IM GIVING BRAINLIEST!!!

Kobotan [32]

Answer:

I think H

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Pls find the surface area for me. I need help ASAP!

melomori [17]

Answer:

About 90.84 in^2

Step-by-step explanation:

The formula for the surface area of a pyramid is

$lw+l\sqrt{\frac{w}{2}^2+h^2}+w\sqrt{\frac{l}{2}^2+h^2}$ , which for this pyramid is equal to about 90.84 in^2. Hope this helps!

3 0

3 years ago

An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating. An independent testing firm has been contra

vovikov84 [41]

Answer:

The value of the test statistic is -2.64.

Step-by-step explanation:

The test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected(claimed) mean, $\sigma$ is the standard deviation and n is the size of the sample.

An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating.

This means that $\mu = 40.3$

After testing 250 vans, they found a mean MPG of 39.9. Assume the standard deviation is known to be 2.4.

This means, respectively, that:

$n = 250, X = 39.9, \sigma = 2.4$

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{39.9 - 40.3}{\frac{2.4}{\sqrt{250}}}$

$t = -2.64$

The value of the test statistic is -2.64.

7 0

3 years ago

−6.2<−4.5, yet |−6.2|>|−4.5|. Use a number line to show why.

romanna [79]

Answer:

-27.9

Step-by-step explanation:

3 0

3 years ago