Try this solution:
Step-by-step explanation:
1) for zeros of the function: x²-6x-7=0; ⇒ x₁=7; x₂= -1.
2) for the vertex of the function: x₀= -b/2a, where a;b;c - numbers from ax²+bx+c=0 (from x²-6x-7=0).
x₀=6/2=3;
y₀= (4ac-b²)/4a; ⇒ y₀= -16.
It means, the coordinates of the vertex are (3;-16).
Answer:
24π cubic units
Step-by-step explanation:
Using the formula for the volume of a cylinder, you find it to be ...
V = πr²h
V = π(2²)(6)
V = 24π . . . . cubic units
Answer:
X = 18
Step-by-step explanation:
(x+3)+(x+3)+(3x-16) = 80
5x-10 = 80
5x = 80+10
5x = 90
x = 90/5
x = 18
hope that helped!
The answer is 14 and 46cm
