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Delicious77 [7]
3 years ago
9

Which explains why this system has no solution?

Mathematics
2 answers:
den301095 [7]3 years ago
7 0

Answer:

 C. Each has a slope of –3, but one has a y-intercept of 3 and the other has a y-intercept of –1, which makes the lines parallel.

Step-by-step explanation:

Parallel lines will have no solution, since they share no points. To be parallel, they will have the same slope and different intercepts.

___

If the intercepts and slopes are the same, the lines are identical and there will be an infinite number of solutions.

natta225 [31]3 years ago
3 0

Answer:

Your Answer is C

Step-by-step explanation:

Parallel lines will have no solution, since they share no points. To be parallel, they will have the same slope and different intercepts.

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Show that a/(b+1)-a/(b+1)^2 can be Written as ab/(b+1)^2
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Answer:

see this img

Step-by-step explanation:

img ☻

7 0
3 years ago
A ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of
djverab [1.8K]

Complete question is;

A 21 ft ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is?

Answer:

θ = 70.5°

Step-by-step explanation:

The angle of elevation simply means the angle that the ladder makes with the ground. Let's call this angle θ.

I've attached a diagram showing the triangle made by this ladder and the wall.

From the attached diagram, we can see the triangle formed by the ladder and the wall.

We can find the angle of elevation θ from trigonometric ratios.

Thus;

7/21 = cos θ

cos θ = 0.3333

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θ = 70.5°

7 0
3 years ago
Which inequality best represents the graph?
ale4655 [162]

Answer:

A   y ≥ (1/2)x + 5

Step-by-step explanation:

The shaded area is above the solid line

the correct symbol is ≥

7 0
3 years ago
Write an equation of the line that is perpendicular to 2x + 4y = 6 and passes through the point (6, 4) ). es A ) y = 2x + 4 B) y
netineya [11]

Answer:

B - y = 2x - 8

Step-by-step explanation:

Step 1: find slope

2x + 4y = 6

4y = -2x + 6

Make y the subject of the formula

y =( -2x + 6)/4

We can separate to get the slope

y = -2x/4 + 6/4

y = -x/2 + 3/2

Slope m = -1/2

Step 2: using a point slope form equation

y - y1 = m ( x - x1)

Note: if two lines are perpendicular to the other, it is always a negative reciprocal of each other

ie m = 2

Substitute m into the equation

y - y1 = 2(x - x1)

Step 3: sub the point

( 6 , 4)

x1 = 6

y1 = 4

y - 4 = 2( x - 6)

Step 4 : using a slope intercept form equation

Open the bracket

y - 4 = 2x - 12

y = 2x - 12 + 4

y = 2x - 8

The equation of a line is

y = 2x - 8

5 0
3 years ago
I got this paper and it had different graphing calculator questions and on one it says check your answer and I don't know what t
dmitriy555 [2]

Answer:

The "check your answer" probably means check your answer by graphing.

Step-by-step explanation:

7 0
3 years ago
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