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ValentinkaMS [17]
3 years ago
9

PLEASE help!! I need help with this quick!!!! I partly know how to do this, but not 100%. Use the linear combination method to s

olve the system of equations. Explain each step of your solution.
2x - 3y = 13
x + 2y = -4
Your step by step will help me get this down.
Mathematics
1 answer:
ira [324]3 years ago
5 0
Add the equations in order to solve for the first variable. PLug this value into the other equations in order to solve for the remaining variables.
The answer is:
(2, -3)
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Which expression is equivalent to square root 8/x^6? assume x > 0
Alik [6]
<h2>Answer:</h2>

<u>The equivalent expression is </u><u> (2 / x ^ 3) * sqrt (2)</u>

<h2>Step-by-step explanation:</h2>

We have sqrt 8 / x ^ 6

 Rewriting the expression:

 =sqrt (8 / x ^ 6)

 =sqrt (2 * 4 / ((x ^ 2) * (x ^ 2) * (x ^ 2)))

 =(2 / (x * x * x)) sqrt (2)

= (2 / x ^ 3) * sqrt (2)

We get finally

 (2 / x ^ 3) * sqrt (2)

3 0
3 years ago
Read 2 more answers
1. Which line has a slope of 1, and which has a slope of 2? Select the correct choice.
aliya0001 [1]
The answer is line 3 big man I got you the answer is right there 1 and 2 slope the first line has slope 1
3 0
3 years ago
The perimeter of a triangle is 27 feet. One side is 3 feet longer than the shortest side, and the longest side is twice as long
dangina [55]

Answer:

6, 9, 12

Step-by-step explanation:

Let s be the shortest side. Using the information you're given, you can create an equation. 27= s + s+3 + 2s. Now just solve the equation. Subtract 3 from both sides. 24=4s. Divide by 4 on both sides. 6=s. So the shortest side is 6 feet long, so we add 3 to that for the one that is neither the shortest or the longest. That side is 9 feet long. We double s to get 12, which is the longest side.

3 0
2 years ago
Read 2 more answers
I have included a picture of the equation <br><br>​
Alchen [17]

Answer:

it's c , x= 1.5 or -4

2x^2 + 5x - 12 = 0

First factor the left side of the equation

(2x-3)(x+4)=0

Second, set the factors equal to 0

2x-3=0 or x+4=0

 +3  +3       -4  -4

2x=3           -4

divide both side by 2 and you get 3/2 which equals 1.5

x=1.5 or x= -4

3 0
2 years ago
No links or files please
Cerrena [4.2K]

The guy who links files is pretty annoying amiright...

Divide 18/35 by 3/5 to get your answer. You can also multiply 3/5 by 35/18.

5 goes into 35 7 times, so cross out the 5 and 35 and put 1 and 7. 3 goes into 18 6 times, so cross out the 3 and 18 and put 1 and 6.

Now you have 1/1 times 7/6. Your answer is 7/6.

6 0
2 years ago
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