The answers are
5. B
6. A
7. D
Answer:
0.03125
Step-by-step explanation:
YEP THAT'S THE ANSWERRR DSJJZJZ
Answer:
The answer to your question is: letter J is the right answer
Step-by-step explanation:
3x - 4y = 6
Solve for y
Add - 3x in both sides 3x - 3x - 4y = -3x + 6
Simplify -4y = -3x + 6
Divide by -4 -4/-4 y = -3/-4 x + 6/-4
Simplify y = 3/4x - 6/4
y = 3/4 x - 3/2
Answer:
a = -4
b = 3
c = 6
Step-by-step explanation:
x^2 + 8x = 38
We take the coefficient of the x term
Divide by 2 and then square it
8/2 =4
4^2 = 16
Add 16 to both sides
x^2 +8x + 16 = 38 + 16
x^2 +8x +16 = 54
Take b/2 and use it in the the (x+b/2)^2
(x+4)^2 = 54
Take the square root of each side
sqrt((x+4)^2) = ± sqrt(54)
x+4 = ± sqrt(54)
Subtract 4 from each side
x+4-4 = -4 ± sqrt(54)
x = -4 ± sqrt(54)
Simplify the square root
x = -4 ± sqrt(9*6)
x = -4 ± sqrt(9) sqrt(6)
x = -4 ± 3 sqrt(6)
A) x + 4y = -15
B) -2x -8y = 30
Multiplying A) by 2
A) 2x + 8y = -30
This has NO solution because A) and B) are actually the same equation.
Equation B = Equation A times minus 2.
