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topjm [15]
3 years ago
6

What is the value of y in the solution to the following system of equations ?

Mathematics
1 answer:
Katen [24]3 years ago
4 0
We can use substitution method to solve for this system of equations. We calculate as follows:

<span>2x – 6y = –14
-6y = -14 -2x
y = x/3 + 7/3

 </span>5x – 3y = –11
 5x – 3(x/3 + 7/3) = –11
5x - x + 7 = -11
4x = -11 -7
4x = -18
x = -9/2
y = -9/2(3) + 7/3
y = 5/6
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The question is in the screenshot attached. Thank you!
Rzqust [24]

Answer:

Domain: -4 < x < 4

Zeros: (-2, 0), (0, 0) and (2, 0)

The function is positive if: 0 < x < 2

The function is negative if: -4 < x < 0 and 2 < x < 4

Step-by-step explanation:

Domain of the function are those x values where the function is defined, For this case, -4 < x < 4

Zeros of a function are those x values where y = 0, that is, the graph intersect x-axis. For this case, the points are: (-2, 0), (0, 0) and (2, 0)

The function is positive if the graph o the function is above x-axis. For this case, the function is positive at the interval (0, 2)

The function is negative if the graph o the function is below x-axis. For this case, the function is negative at the intervals (-4, 0) and (2, 4)

7 0
3 years ago
$4.95 chocolate bars are now on sale for 35% off. what will the chocolate bars cost now? (show work)
Tema [17]
= 4.95 X .65 = 3.2175 ( 3.22).
4.95 = 100% of the price
100 less 35 = 65
4.95 X .65% = 3.2175 or 3.22
6 0
3 years ago
1-73.
cricket20 [7]

36inch - 2 feet

72inch - 4 feet

144inch - 8 feet

18 X 2 = 36

1 + 1 = 2

18 x 4 = 72

1 x 4 = 4

18 x 8 = 144

1 x 8 = 8

8 0
3 years ago
An item is regularly priced at $83. It is now priced at a discount of 55% off the regular price.
mart [117]

Answer:

$45.65 total

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Math property x+(-x)=0
alexira [117]

Answer:

True

Step-by-step explanation:

Bcs, in the equation x+(-x)=0 you do x-x ( which is basically x+ -x) and they cancel each other out. This means your equation is 0=0

7 0
3 years ago
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