Which of the following is a true statement about skew lines?

Answers

Answer 1

Answer: Skew lines exist in a three-dimensional geometry. These are lines that are not parallel with each other but do not intersect. They are lines that do not lie on the same plane or non-coplanar. An example is the pair of lines through the opposite edges of a tetrahedron.

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Graph with a line going through points zero comma two point five and four comma two point five.Select the equation of the line that passes through the point (3, -1) and is parallel to the line on the graph.

a) y = -1

b) y = 3

c) y = x -1

d) y = 3x - 1
*graph is attached for 1st question*

Graph with a line going through points negative 2 comma zero and 0 comma negative one.

Select the equation of a line that is perpendicular to the line on the graph and passes through the point (-1, 2).

y = 2x + 4

y = - 2x + 2

y = - 1 over 2 x + 2

y = 2x - 1

Answers

Answer:

1 - $y=-1$

2 - $y=2x+4$

Step-by-step explanation:

The general form of a straight line is $y=mx+b$ , where m = slope and b = y-intercept.

Ques 1: We are given that the line passes through (0,2.5) and (4,2.5).

Then the slope of the line is given by,

$m=(2.5-2.5)/(4-0)=0$

Then, the y-intercept is given by,

$y=0x+b\n\n2.5=b$

That is, the equation of the line is $y=2.5$

Since, 'Two parallel lines have equal slope'.

Then, the line parallel to $y=2.5$ have slope 0 i.e. $y=b$ .

As, the line passes through the point (3,-1) i.e. y= -1 for any value of x.

Then, the equation of line is $y=-1$

So, option A is correct.

Ques 2: We are given that the line passes through (-2,0) and (0,-1).

Then the slope of the line is given by,

$m=(-1-0)/(0+2)=(-1)/(2)$

Then, the y-intercept is given by,

$-1=(-1)/(2)* 0+b\n\nb=-1$

That is, the equation of the line is $y=(-1)/(2)x-1$

Since, 'The product of slopes of two perpendicular lines is -1'.

Then, we have,

$m* (-1)/(2)=-1\n\nm=2$

The line perpendicular to $y=(-1)/(2)x-1$ have slope 2.

As, the line passes through the point (-1,2) with slope 2.

The y-intercept is given by,

$2=2* -1+b\n\n2=-2+b\n\nb=4$

Thus, the equation of the line is $y=2x+4$

So, option A is correct.

y= - 1

The graph of the first line is 0. The graph of the second line will also be equal to 0. Replacing in the general equation of a line y=mx+c;
y=(0)x+c
y=c
Using the point (3,-1)
-1=c
y=-1

The diagram shows a dilation of segment AB. Whichstatements are true about the dilation? Select all that
apply
The dilation is an enlargement
The dilation is a reduction
Point O is the center of dilation.
The scale factor is 3.
The scale factor is 9.

Answers

Answer: 1, 3, 4

Step-by-step explanation:

I took the test on Edge. No brainliest needed. =)

Answer:

1,3,4

Step-by-step explanation:

I need help solving this

Answers

The area of the triangle is 15*25*sin(30) = 187.5;

How to do ending time 10:08 A.m. elapsed time 30 minutes page 583 584 and third grade math

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the answer is 10:48 son

The graph of an inequality has an open circle at 3.9, and the ray moves to the right. What inequality is graphed?x > 3.9
x ≤ 3.9
x < 3.9
x ≥ 3.9

Answers

The answer would be x> 3.9

Answer:

x>3.9

Step-by-step explanation:

Plz help me I will give brainlest!!!

Answers

You he answer is 3/5

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