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
otez555 [7]
3 years ago
6

Line one has the equation 7x - 4y = - 28 and line two

Mathematics
1 answer:
Pie3 years ago
4 0

7x - 4y = -28

3x +4y = -12

Using the elimination method because y is already eliminated

10x = -40

So x = -4

Then plug the -4 into the first equation....

7(-4) - 4y = -28

-28 - 4y = -28

-4y = 0

y = 0

I got:  -4,0

You might be interested in
Which is the most accurate measurement of 1 mile (Remember, there are 1760 yards in a mile
elena-14-01-66 [18.8K]
What are the answer choices?
7 0
4 years ago
Read 2 more answers
A set of stairs is being built as shown.
Sergio [31]

Step-by-step explanation:

using Pythagoras a²+b²=c²

HOWEVER you know the hypotenuse

so it's rearranged to either c²-b²=a² or c²-a²=b²

so 13²-11²

so 169-121

this makes 48

square root 48 is 6.90 inches

this rounds up to <u>7</u><u> </u><u>Inches</u>

5 0
3 years ago
Read 2 more answers
How do i do this? I dont really know where to start
Alex787 [66]
Well, I don’t necessarily remember how to sketch a plane. However, I can help get you started by defining some words they use and hopefully you will be able to do this on your own!

So this plane is made up of three points, names E, D and B. (Edit: This plane may be made up of four points, because of point A.)

E and B are collinear with A. This basically means that they all are on the same line.

D is a vertex. This basically means that it is a dot that these two lines called rays will shoot out of it. I will attach a picture of a vertex.

CD and FD are called rays. See those little lines above them? I’ll be sure to attached another image so that you know what I’m taking about. Anyway, that means they are rays. Rays are like never ending lines; they start at a point and the line will go on for infinity.

(Edit: where did the point f come from? I really wish you would have attached the full picture...)

Whelp, that’s all I’ve got! Good luck!!

(Edit: looks like I can only attach one picture...I’ll comment the other.)

8 0
3 years ago
WILL MARK BRAINLIEST IF ANSWERED WITHIN 5 MINUTES...........2 composite figures. One is comprised of a rectangular prism and a t
Brilliant_brown [7]

Answer:In order to calculate the volume of a composite figure, first you separate the two figures.Then, find the volume for each figure by multiplication.Lastly, add the volumes of the two shapes.

Step-by-step explanation I checked by the sample response.

8 0
3 years ago
Read 2 more answers
Barry is trying to calculate the distance between point E(3, 1) and point F(4, 7). Which of the following expressions will he us
Masteriza [31]
Barry will use the distance formula:
d = √[(x₂ - x₁)² + (y₂ - y₁)²]
d = √[(4 - 3)² + (7 - 1)²]
d = 6.08 units
7 0
3 years ago
Read 2 more answers
Other questions:
  • Using synthetic division, find (2x^4 - 3x^3 - 20x -21) + (x-3).
    13·1 answer
  • To solve m/-2+11=14 what steps would you use
    8·1 answer
  • What does 45 - 4x equal
    12·1 answer
  • What is the sign of -567.45 + 567.45−567.45
    7·1 answer
  • A particular electronic component is produced at two plants for an electronics manufacturer. Plant A produces 60% of the compone
    12·1 answer
  • What is 99/00+44(55)99​
    8·1 answer
  • Let f(x)=-2-7 and g(x)=-4+3. Find (f o g)(-5) <br> A.-53<br> B.23<br> C.-9<br> D.3
    11·1 answer
  • Pls help and SHOW WORKINGS<br> It due ASAP
    12·1 answer
  • A computer repairman makes $25 per hour. Which equation models the situation?
    13·2 answers
  • HELP I WILL GIVE BRAINLIEST!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!