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3 years ago

What is one similarity and one difference between an altitude and a median of a triangle?

1 answer:

3 0

The median of the triangle is a segment that connects the vertex of the triangle to the midpoint of the side opposite to the vertex. <span>The altitude of the triangle is a segment that connects the vertex of the triangle to the side opposite to the triangle, which intersects that side at exactly 90°.</span>

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What is the simplified expression for the expression below? -1/5(5x+20)-1/4(4x-28)

e-lub [12.9K]

You need to distribute the numerical factors for each term in the parenthesis:

$\dfrac{-1}{5}(5x+20)-\dfrac{1}{4}(4x-28) = \dfrac{-1}{5}\cdot 5x + \dfrac{-1}{5}\cdot 20 + \dfrac{-1}{4} \cdot 4x + \dfrac{-1}{4} \cdot (-28)$

This equals

$-x-4-x+7 = -2x+3$

7 0

3 years ago

Read 2 more answers

what is fourteen less than five times a number is three times the number and what is twelve more than seven times a number equal

andrey2020 [161]

If I am reading the equations correctly, they are:
5x - 14 = 3x AND 7x + 12 = x - 6

If this is correct, the first one would be worked out like this:
5x (- 5x) - 14 = 3x (- 5x)
- 14 = - 2x
- 14 (/ - 2) = - 2x (/ - 2)
7 = x

The second would be worked out like this:
7x + 12 (+ 6) = x - 6 (+ 6)
7x + 18 = x
7x (- 7x) + 18 = x (- 7x)
18 = - 6x
18 (/ - 6) = - 6x (/ - 6)
- 3 = x

I hope this is what you are looking for :)

8 0

4 years ago

The median of 32,,21,60,3,5,17

NeX [460]

Answer:

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

I NEED HELP PLSSSSS I WILL MARK BRAINLEIST <3

lidiya [134]

Answer:

I am pretty sure the anwser is A

3 0

3 years ago

Read 2 more answers

Consider the following data on the estimated cost (in millions of dollars) resulting from traffic congestion for different urban

IrinaK [193]

The mean is $5.769 million and the standard deviation is $3.905 million.

The mean is the average of a data set.

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

The standard deviation shows the measure of the dispersion from the mean.

<h3>Data and Calculations:</h3>

Urban Area Total Cost Squared Difference

(millions of dollars) (x - u)²

New York 16 104.65

Los Angeles 13 52.27

Chicago 7 1.51

Washington, D.C. 5 0.59

Houston 5 0.59

Dallas, Fort Worth 4 3.13

Detroit 4 3.13

Miami 4 3.13

Phoenix 4 3.13

Philadelphia 4 3.13

San Francisco 3 7.67

Boston 3 7.67

Atlanta 3 7.67

13 Total 75 198.27

Mean = 5.769 (75/13) 15.251 (198.27/13)

Standard Deviation = 3.905 (square root of 15.251)

<h3>Question Completion:</h3>

Urban Area Total Cost

(millions of dollars)

New York 16

Los Angeles 13

Chicago 7

Washington, D.C. 5

Houston 5

Dallas, Fort Worth 4

Detroit 4

Miami 4

Phoenix 4

Philadelphia 4

San Francisco 3

Boston 3

Atlanta 3

Calculate the mean and standard deviation for this data set (in millions of dollars). (Round your answers to three decimal places.) mean $ million standard deviation $ million

Thus, the mean is $5.769 million and the standard deviation is $3.905 million.

Learn more about calculating the mean and standard deviation at brainly.com/question/1580527

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6 0

2 years ago