Answer:
Sean is 1.15m
Step-by-step explanation:
35cm = 0.35m
Lisa is 1.5m tall and Sean is 0.35m shorter
1.5m - 0.35m = 1.15m
Sean is 1.15m
I'm bad at explaining things, so I will show you an example.
Equation: 4t² = 25
1). Take the square root of both terms
√4t² = √25
√4t² = 4t
√25 = 5 (5x5 = 25)
Now, you are left with 4t = 5
Divide each side of that equation by 4
4t = 5
----- ----
4 4
t = 5/4 or -5/4
I don't know why, but the answer can be positive or negative. I'm still trying to understand that :)
I hope that this helps you a little bit!
Answer:
(a) Ginny made a mistake in step 1 when she identified b = 31. It should be b=–31.
Step-by-step explanation:
The value of b is the coefficient of x. In the given quadratic expression, the coefficient of x is -31, so Ginny should have started with b = -31 in step 1.
Answer:
15
Step-by-step explanation: