Mr. chang paid the least because 10% off 25 is more than 20%off 30
Answer:
The force required is 6000
Step-by-step explanation:
Answer:4^2-(8x1)=8
Step-by-step explanation:
Answer:
x = ± sqrt(43)
Step-by-step explanation:
2x^2 - 28 = x^2 + 15
Subtract x^2 from each side
2x^2-x^2 - 28 = x^2-x^2 + 15
x^2 -28 = 15
Add 28 to each side
x^2 - 28 +28= 15+28
x^2 = 43
Take the square root of each side
sqrt(x^2) = ± sqrt(43)
x = ± sqrt(43)