A1 = 0.91
a6 = -0.14
sum = (0.91+-0.14) /2
sum = 2.31
I will explain step by step how to solve for x
Remove the parenthesis using distributive property
1.5(x + 4) - 3 = 4.5(x - 2)
1.5(x) + 1.5(4) = 4.5(x) - 4.5(2)
1.5x + 6 = 4.5x - 9
Combining like-terms. Move the terms whose variable x to the left side, and move constants to the right side. Plus sign will become substract sign after being moved.
1.5x + 6 = 4.5x - 9
1.5x - 4.5x = -9 - 6
-3x = -12
Move -3 to the right side to solve for x. Multiplication becomes division after being moved to the other side
-3x = -12
x = -12/-3
x = 4
The value of x is 4
Any line y=m is horizontal. The y-coordinate of any point lying on such line is m, only x-coordinates change.
If y=1, then two points on the line are (x₁,1) and (x₂,1).
So, the slope of this and any horizontal line is 0.
The answer is a.
Answer:
(2, 18) and (-3, -7)
Step-by-step explanation:
y = 5x + 8 Substitute the value for y into the second equation
-10x + 2y = 16
-10x + 2(5x + 8) = 16
-10x + 10x +16 = 16
16 = 16 True
These two equation are the same line. So pick one of the equation to check which ordered pairs are true solutions.
Using y = 5x + 8
(0, -6) -5 = 5(0) + 8 ; -6 = 8 No
(-1, 9) 9 = 5(-1) + 8; 9 = -5 + 8 ; 9 = 3 No
(2, 18) 18 = 5(2) + 8; 18 = 10 + 8 = 18; 18 = 18 Yes
( -3, -7) -7 = 5(-3) + 8; -7 = -15 + 8; -7 = -7 Yes
