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castortr0y [4]
2 years ago
9

Please help, I’m just getting back to school and forgot how to do this.

Mathematics
2 answers:
kirill115 [55]2 years ago
8 0

Answer:

  • x = - 4

Step-by-step explanation:

The slope is the ratio of rise to run.

Rise is the difference of y-coordinates, run is the difference of x-coordinates.

Now, the slope is said undefined if the difference of x-coordinates is zero.

It means you have to divide by zero but it is impossible.

We have a point (- 4, - 8) and the slope is undefined.

It means our line has repeat x = -4 coordinates, it is a vertical line.

<u>Its equation will be:</u>

  • x = - 4
pogonyaev2 years ago
5 0

Let's write the equation

  • m=undefined
  • Point (-4,-8)

\\ \sf\longmapsto y=mx+b

  • Line is parallel to y axis

\\ \sf\longmapsto x+4=\dfrac{-8}{\infty}

\\ \sf\longmapsto x+4=0

\\ \sf\longmapsto x=-4

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What is the slope of the line containing the ordered pairs (5,-3) and (-2,-3)
Anni [7]

Answer:

0

Step-by-step explanation:

Use the slope formula: m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

m = \frac{-3+3}{-2-5}=\frac{0}{-7} =0

The slope of the line is 0.

3 0
3 years ago
The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of 2 2 . what is the measure of the angle
creativ13 [48]
The correct question is
The hypotenuse and one of the legs of a right triangle form an angle that has a cosine of √<span>2/2 . 
What is the measure of the angle? 

Let
</span>∅--------> the angle
cos ∅=√2/2<span>
cos </span>∅=[distance of one of the leg/hypotenuse]
[distance of one of the leg/hypotenuse]=√2/2

<span>I could say that
</span>distance of one of the leg=√2
and 
hypotenuse=2
so
<span>applying the Pythagorean theorem
</span>c=hypotenuse=2
a=√2
b=?
c²=a²+b²-------> b²=c²-a²------> b²=2²-(√2)²-----> b²=2-----> b=√2

therefore
if a=b
then 
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the answer is the option
<span>b.45 degrees</span>
7 0
3 years ago
Item 15
Shtirlitz [24]

Answer:

28

Step-by-step explanation:

4*7= 28

when there is a variable (letter next to the number) next to the number like 4a it means 4 multiplied by a. since a is 7, 4 multiplied by 7 is 28.

8 0
2 years ago
(2,7) (-1-8) write the equations in slope intercept form
AveGali [126]

Answer:

y-mx+b

(2,7) (-1, -8)

y=5x-3

8 0
2 years ago
3. A computer is worth $4000 when it is new. After each year it is worth half what it was the previous year
MrMuchimi

Answer:

Answer is 500

btw did round sorry

Step-by-step explanation:

First year

4,000 divided by 2,000=2,000

Second year

2,000 divided by 2=1,000

Third year

1,000 divided by 2=500

7 0
3 years ago
Read 2 more answers
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