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Ber [7]
3 years ago
8

Two lines, A and B, are represented by the equations given below:

Mathematics
1 answer:
SashulF [63]3 years ago
4 0
Given:
Line A: 2x +  2y = 8
Line B:    x + y = 4

x = 4 - y
2(4-y) + 2y = 8
8 - 2y + 2y = 0
0 = -8

y = 4 - x
2x + 2(4-x) = 8
2x + 8 - 2x = 8
0 = 0

There is no solution.
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Solve 2X squared plus X equals 15
Karo-lina-s [1.5K]

Answer:

x=5

Step-by-step explanation:

2x+x= 3x

3x=15

15/3=5

7 0
3 years ago
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If a line with a slope of -2 crosses the yaxis at (0,3) what is the equation of the line
Sliva [168]

Answer:

y=-2x+3

Step-by-step explanation:

Notice that with the provided information they are given you not ust the slope of the line (-2), but also the y-intercept (the point where the line crosses the y-axis which happens when x=0).

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3 years ago
The common denominator of 3/4 and 1/6 is 24. True False
Viktor [21]
Actually, this is false. 6 and 4 both have <em>12 </em>in common because 6*2=12 and 4*3 is 12. So the least common denominator is really 12.
6 0
4 years ago
Which of the following is an irrational number ?
sweet [91]

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D. Radican 101

Step-by-step explanation:

8 0
3 years ago
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Plz help me with b,a , and b
solniwko [45]
2A) C is correct.

2B) If x + 13 = 28, solve.
x+13=28\\&#10;x=15
If x = 15 and x + 13 = 28, you can solve it two ways:
1. Plug x into 4x + 26 to get a perimeter of 86, or
2. Redo the equation:
P=2(15)+2(28)\\&#10;P = 30+56\\&#10;P=86

3a. Since the 6z is negative, you want an expression the has 5z - (11z). Answers A and D have that in their answer.
But since the 13 is positive, you want the answer that subtracts the smaller number from the larger. Thus, D is your answer since it subtracts 2 from 15.

3b) You think about this question the same way; 6z is positive, so the smaller number is being subtracted from the larger, meaning that 11z - 5z is what you look for. C and D are the two that have that, so now let's look at the second term.
The 13 is negative, so you want the answer that has 2 - 15. The answer that has that is D.

Hope this helps :D

8 0
3 years ago
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