Answer:
x = 7 or x = 1
Step-by-step explanation:
For this equation: a=-1, b=8, c=-7
−1x2+8x+−7=0
Step 1: Use quadratic formula with a=-1, b=8, c=-7.
x= ( −b±√b2−4ac
)/2a
x=
(−(8)±√(8)2−4(−1)(−7))/ (2(−1)
)
x= (−8±√36
)/-2
x=1 or x=7
Answer:
Answer: the height of cylinder A 16 inches.
Step-by-step explanation:
1.4h_A=5.6\cdot 4,\\ 1.4h_A=22.4,\\ h_A=\dfrac{22.4}{1.4} =16 in.
Answer: the height of cylinder A 16 inches.
Answer:
12
Step-by-step explanation:

distributive because you are distributing the outside number into the parentheses