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
Anna007 [38]
3 years ago
15

What is 8x-4y=-12;-3,-1,1 solve for y

Mathematics
1 answer:
polet [3.4K]3 years ago
3 0
8x - 4y = -12
4y = 8x + 12
y = 8/4 x + 12/4
y = 2x + 3

When x = -3,
y = 2(-3) + 3 = -6 + 3 = -3
When x = -1,
y = 2(-1) + 3 = -2 + 3 = 1
When x = 1,
y = 2(1) + 3 = 2 + 3 = 5
You might be interested in
You are running a concession stand at a basketball game. You are selling hot
Nuetrik [128]

x= hot dogs

y= soda

Total sold

1 x + 1 y = 87 .............1

2 x 0.50 y = 78.50 .............2

Eliminate y

multiply (1)by -0.50

Multiply (2) by 1.00

-0.50 x -0.50 y = -43.50

2 x + 0.50 y = 78.50

Add the two equations

1 x = 35.00

/ 1

x = 35.00

plug value of x in (1)

1 x + 1 y = 87

35 + y = 87

y = 87 -35

y = 52

y = 52.00

x= 35 hot dogs

y= 52 soda

7 0
3 years ago
A train must climb a constant gradient of 5.5m for every 200m on track. Find the angle of incline
Eduardwww [97]
<span>angle = arcsin(5.5/200) = 1.575 degrees</span>
4 0
3 years ago
Read 2 more answers
5x5x5x5x6x7x8x8x9x9x9x9x9x9x10x12x13x14x15x16x17x18x19x20<br><br> WHAT DOES THIS EQUAL
trapecia [35]

Answer:

5.441683e+23

Step-by-step explanation:

Hope it helped brainiest plz

5 0
2 years ago
Read 2 more answers
In ΔABC, BC = 13, CA = 20 and AB = 19. Which statement about the angles of ΔABC must be true?
I am Lyosha [343]

Answer:

m∠B > m∠C > m∠A

Step-by-step explanation:

The angle opposite the largest side in a triangle is the largest, and the angle opposite the shortest side is the smallest.

4 0
2 years ago
35 Points!!
nexus9112 [7]

Answer:

- Equal midpoints of AC and BC.

- The product of the slopes of the diagonals AC and DB is -1.

Step-by-step explanation:

1. Plot the given points, as you can see in the graph attached.

2. Calculate the midpoint of AC and DB:

M_{AC}=(\frac{-5+(-1)}{2},\frac{-1+5}{2})=(-3,2)\\M_{DB}=(\frac{-9+3}{2},\frac{6+(-2)}{2})=(-3,2)

Therefore, the midpoint of AC and DB are equal.

3. Calculte the slope of the diagonals AC and DB:

m_{AC}=\frac{5-(-1)}{-1-(-5)}=\frac{3}{2}\\m_{DB}=\frac{-2-6)}{3-(-9)}=-\frac{2}{3}

4. Multiply the slopes of the diagonals:

(\frac{3}{2})(-\frac{2}{3})=-1 (AC and DB are perpendicular)

5 0
3 years ago
Other questions:
  • A cruise ship is traveling at a speed of 20 knots. A knot is approximately equaled to 1.151 miles per hour. What is the approxim
    11·1 answer
  • What is the volume of a cube with an edge length of 3.2 meters?
    11·2 answers
  • Find the mean and median of following data 17, 10,3,5 and 15
    5·1 answer
  • 1/3=?/24 <br>Which number is missing to make the equation true?​
    8·2 answers
  • Urgent need the answers plz help.
    8·1 answer
  • A<br><br> b<br><br> c<br><br> dㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
    13·1 answer
  • Solve the equation. You will not get credit if you do not show your work or 4 points
    15·1 answer
  • Rename the fraction 2/5 using tenths and hundredths​
    15·1 answer
  • Tj Max is offering a 15% discount on all items .The new price of a pair of jeans is 44.20 .What was the original price
    13·1 answer
  • Which linear inequality is graphed in the figure
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!