1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Galina-37 [17]
2 years ago
12

A straight line passes through A (-2, 0) and B (2,-k). The line is

Mathematics
1 answer:
gtnhenbr [62]2 years ago
3 0

Answer:

<h3>-6</h3>

Step-by-step explanation:

Let the slope of the first line be m1

Let the slope of the second line be m2

If both lines are perpendicular, then;

m1m2 = -1

Get m1, the slope of the line passing through A (-2, 0) and B (2,-k).

m1 = y2-y1/x2-x1

m1 = -k-0/2-(-2)

m1 = -k/4

Get the slope of the line 3y + 2x = 5

Rewrite the equation;

3y = -2x + 5

y = -2/3 x + 5/3

Hence the slope of the line m2 is -2/3

Since m1m2 = -1, then;

-k/4(-2/3) = -1

2k/12 = -1

k/6 = -1

k = -6

Hence the value of k is -6

You might be interested in
Stacy is saving $5 each week to buy a new bike. She already has 15 dollars saved in her bank account. SHe needs to save at least
kotykmax [81]

She nee to save $60 more so she can buy a new bike

3 0
3 years ago
Which is the best first step when solving the following system of equations? 5 c + 4 d = 10. 3 c + 2 d = 16. Multiply the first
Virty [35]

Answer:

5c+4d=10

3c+2d=16

8c+6c=26

8 0
2 years ago
Can anyone help me, i will give brainiest.
laila [671]

Answer: ∠DOB: 48°

Step-by-step explanation:

1. we need an equation first. the sum of all angles (108°, n°, 2n°) is equal to 180°. we can depict this with the equation: 108°+2n°+n°=180°

2. now we can solve for the missing variable, n.

108°+3n°=180° → subtract both sides by → 3n°=72° → divide both sides by 3 → n=24°

3. now that we know that n=24°, we can solve the value of ∠DOB. we can see that ∠DOB is 2n° which we just plug the number we got for n into the equation. 2*24=48° meaning ∠DOB is 48°

hope this heped! ♡

7 0
2 years ago
Read 2 more answers
Solve for x: 3-(2x-5)&lt;-4(x+2)
andriy [413]
3-(2x-5)<-4(x+2)

8-2x<-8-4x

16<-2x

-8 > x. or equivalently x<-8
3 0
3 years ago
What is 7/10 as a decimal
topjm [15]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~HITHERE~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~~~~~THEANSWER~~~~~~~~~~~~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~0.7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

HOPE THIS HELPED

~~~~~~~~~~~~~~~~~ANDTELLMEIFIAMWRONGTHANKYOU~~~~~~~~~~~~~~~~

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

7 0
3 years ago
Other questions:
  • If two marbles are randomly selected from the bag without replacement, what is the probability that the first marble is blue?
    8·1 answer
  • Which of the following results in a sum or a product that is rational? Choose all that apply. (3 points)
    7·1 answer
  • Y=(?,?) x=(?,?) determine the intercept of the line
    15·2 answers
  • Graph the function y=5x+4
    14·1 answer
  • Help in this question please?
    10·1 answer
  • Suppose Cone A is similar to Cone B and the scale factor between the solids is 3:2, respectively. If the height of Cone A is 15
    15·1 answer
  • Can someone plz help me solved this problem! I really need help ASAP! Will mark you as brainiest!
    12·2 answers
  • I need he answer pls answer fast answer don’t scam
    13·2 answers
  • A player chooses one of the numbers 1 through 4. After the choice has been made, two regular four-sided (tetrahedral) dice are r
    7·1 answer
  • What is true corresponding line segment of an objects that has been reflected over the x-axis
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!