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3 years ago

Plsss helpppp plssss

Mathematics

1 answer:

aleksklad [387]3 years ago

7 0

Answer: A

Step-by-step explanation:

6x + 12x + 90 = 180

18x + 90 = 180

-90 -90

18x =90

x= 5

6(5) + 12(5) + 90 = 180

30 + 60 + 80 = 180

180= 180 It makes sense that it is A because there is one right angle which has a measure of 90 degrees and the other one have two measures 6x and 12x and both of them have to also equal 90 degrees. So 90 pluse 6x plus 12x has to equal 180 because they all lie on a straight line and a straight line has an angle measure of 180 degrees.

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-h/3 - 17 = 25<br><br> Geometry. show all work :)

alex41 [277]

Answer:

${ \tt{ - \frac{h}{3} - 17 = 25 }} \\$

• Apply additional property of equality:

$→ \: { \tt{ - \frac{h}{ 3} = 25 + 17 }} \\ \\ → \: { \tt{ - \frac{h}{3} = 42}}$

• Apply cross multiplication, multiply either sides by -3:

$→ \: { \tt{( - \frac{h}{3} \times - 3) = 42 \times - 3 }} \\ \\ → \: { \tt{h = - 3 \times 42}} \\ \\ → \: { \underline{ \tt{ \: \: h = - 126 \: }}}$

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3 years ago

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Martin has a 7/23 balloon mortgage on his $195,000 home. He has been

Digiron [165]

Answer: 251,203

Step-by-step explanation:

Martin pays 965 every month for seven years. Therefore,

965×12×7= 81,060

Then, he has a balloon payment of 170,143 to make. Therefore, totaal financed price he paid for his home is 81,060+170,143= 251,203.

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4 years ago

A(-2, 1), B(-4,-1), and C(0, -1) and is

Vikentia [17]

(4,-1)

If you graph 0,-1 as a coordinate then x=2 you can just count how many are before the line, then count that many after and that’s your coordinate

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3 years ago

What is the relationship between angle 1 and 2?

TiliK225 [7]

Answer:

Complementary

Step-by-step explanation:

Angle 1 and 2 make up a 90-degree angle

Hope this helps! :)

5 0

3 years ago

The standard deviation tells us a. the average value of the scores. b. the relative standing of a particular score. c. the skewn

andreyandreev [35.5K]

We can say that the standard deviation tells us <u>the </u><u>dispersion </u><u>of the scores</u>, making <u>option D</u> the correct choice.

<h3>What is the standard deviation?</h3>

A standard deviation (or σ) is a measure of how widely distributed the data is about the mean (μ). A low standard deviation suggests that data is grouped around the mean, whereas a large standard deviation shows that data is more spread out. A standard deviation around 0 suggests that data points are close to the mean, whereas a high or low standard deviation indicates that data points are above or below the mean, respectively.

We use the following formula to compute the standard deviation:

$\sigma = \sqrt\frac{{\sum_{i=1}^{N}\left | x_i - \mu \right | }^2}{N}$

In this formula, σ is the standard deviation, $x_i$ is the data point in the set we are solving for, μ is the mean, and N is the total number of data points.

<h3>How to solve the question?</h3>

In the question, we are asked to tell what standard deviations tell us from the given options.

From the above discussion, we can say that the standard deviation <u>tells us the </u><u>dispersion </u><u>of the scores</u>, making <u>option D</u> the correct choice.

Learn more about the standard deviation at

brainly.com/question/475676

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2 years ago

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