Answer:
2
Step-by-step explanation:
14-(-2)/10-2
14+2/10-2
16/8
2
Answer:
B) x = -12
Step-by-step explanation:
[Given] -2.5(x-4) = -3x + 4
[Distibute] -2.5x + 10 = -3x + 4
[Subtract 4 from both sides] -2.5x + 6 = -3x
[Add 2.5x to both sides] 6 = -0.5x
[Divide both sides by -0.5] -12 = x
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Answer:
C x=6
Step-by-step explanation:
sqrt(x+3) = x-3
Square each side
(sqrt(x+3))^2 = (x-3)^2
x+3 = (x-3)^2
x+3 = (x-3)(x-3)
FOIL
x+3 = x^2 -3x-3x+9
Combine like terms
x+3 = x^2 -6x+9
Subtract x from each side
x-x+3 = x^2 -6x-x +9
3 = x^2 -7x +9
Subtract 3 from each side
3-3 = x^2 -7x +9-3
0 = x^2 -7x+6
Factor
0 = (x-6)(x-1)
Using the zero product property
x-6=0 x-1 =0
x=6 x=1
Since we squared we need to check for extraneous solutions
x=1
sqrt(1+3) = 1-3
sqrt(4) = -2
2=-2
False
Extraneous
x=6
sqrt(6+3) = 6-3
sqrt(9) = 3
3=3
True solutions
Answer:
90°
Step-by-step explanation:
hope this helps.....
