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motikmotik
3 years ago
7

PLZ HELP ME SOMEONE!!!!? 17 POINTS!!

Mathematics
2 answers:
saul85 [17]3 years ago
6 0

Answer:

Positive

Step-by-step explanation:

Positive; 4 (which is the slope) is a positive number

iogann1982 [59]3 years ago
4 0

Answer:I think it's Undefined

Step-by-step explanation:

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In parallelogram ABCD , diagonals AC¯¯¯¯¯ and BD¯¯¯¯¯ intersect at point E, AE=2x2−3x , and CE=x2+4 .
spin [16.1K]
If the diagonals of the parallelogram intersect with each other, this means that the diagonals bisect each other. Thus,

    AE = CE

Substituting the equations,

  2x² - 3x = x² + 4

The values of x from the equation are equal to 4 and -1. 

  AE = 2(4)² - 3(4) = 20

Hence, AC is equal to 40. 

Answer: 40 units
4 0
3 years ago
Read 2 more answers
Statements that are true for a cylinder with radius r and height h.
vampirchik [111]

Answer:

Only the second and third statements are correct:

Doubling <em>r</em> quadruples the volume.

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Step-by-step explanation:

The volume of a cylinder is given by:

\displaystyle V=\pi r^2h

We can go through each statement and examine its validity.

Statement 1)

If the radius is doubled, our new radius is now 2<em>r</em>. Hence, our volume is:

\displaystyle V=\pi (2r)^2h=4\pi r^2h

So, compared to the old volume, the new volume is quadrupled the original volume.

Statement 1 is not correct.

Statement 2)

Using the previous reasonsing, Statement 2 is correct.

Statement 3)

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V=\pi r^2(2h)=2\pi r^2h

So, compared to the old volume, the new volume has been doubled.

Statement 3 is correct.

Statement 4)

Statement 4 is not correct using the previous reasonsing.

Statement 5)

Doubling the radius results in 2<em>r</em> and doubling the height results in 2<em>h</em>. Hence, the new volume is:

V=\pi (2r)^2(2h)=\pi (4r^2)(2h)=8\pi r^2h

So, compared to the old volume, the new volume is increased by eight-fold.

Statement 5 is not correct.

7 0
3 years ago
Write an equation reprezeting x axis​
Rudiy27

Answer:

y=0

Step-by-step explanation:

All y-values along the x-axis are equal to 0.

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3 years ago
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nadezda [96]
All you have to do is find the relationships between the top and bottom and then find how they all r in common
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3 years ago
N^2+100=20n<br><br> Please show work
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Subtract 20n from both sides of the equation.
n^2+100-20n=0
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(n-10)^2=0
set the n-10 equal to 0.
n-10=0
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n=0
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3 years ago
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