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allsm [11]
3 years ago
15

SOLVE THE FOLLOWING BY SUBSTITUTION AND PLEASE SHOW STEPS:

Mathematics
2 answers:
Elza [17]3 years ago
6 0
5x + 2y =9
X + y= -3

5x+2y=9
2x+2y=-6
__________
3x =15
X =5


5+y=-3
Y=-8

Answer is : (5,-8)
Kamila [148]3 years ago
4 0
In a picture below it wrote the answer and steps

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What is the x intercept of the graph of the inequality 2x + 3y > 12
iogann1982 [59]

Answer: x intercept = 6

This is the location (6,0)

===============================================================

Explanation:

I assume you're talking about the boundary line of the inequality. The boundary line equation is 2x + 3y = 12

To find the x intercept, plug in y = 0 and solve for x

2x + 3y = 12

2x + 3(0) = 12

2x = 12

x = 12/2

x = 6

The boundary line 2x+3y = 12 crosses the x axis at x = 6.

We can say the x intercept is x = 6. This is the location (6,0).

Side note: the y intercept is y = 4, which is found by plugging in x = 0 and solving for y.

8 0
3 years ago
I NEED HELP ASAP PLEASE!
dusya [7]

Answer:

The length of AC = 4 and the length of A'C' = 1 so the scale factor is 1/4.

8 0
3 years ago
87614.4 divided by 16
kifflom [539]

Answer:

5,475.9

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
AC = 4, AE = 7, AD = 10, what is the length of AB?
Nataly [62]
I think its C but I could be wrong.
                                                          I hope this helps :)
8 0
3 years ago
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What are the solutions to the equation x² + 16x + 14 = 0?
poizon [28]

Answer:

-8+5√2 and -8-5√2

Step-by-step explanation:

Given the expression x² + 16x + 14 = 0

USing the general formulas

x = -16±√16²-4(14)/2

x = -16±√256-56/2

x = -16±√200/2

x = -16±10√2/2

x = -8±5√2

Hence the required solutions are -8+5√2 and -8-5√2

3 0
3 years ago
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