Answer: the third
Step-by-step explanation:
Answer:
c. the team could overestimate community support because those surveyed may be more likely to support a park than the overall community would.
I just took the quiz
Answer:
m<1 and m<2 are obviously congruent so if m<2 is 25 then that means m<1 is also 25
Answer:
Step-by-step explanation:
I would start by visually thinking out this problem. Or if you have time sketch it out. And don't forget the popcorn :)
Then while doing this retry the problem
Answer:
The maximum height of the rocket is 256 feet
Step-by-step explanation:
The vertex form of the quadratic function f(x) = ax² + bx + c is
f(x) = a(x - h)² + k, where
- (h, k) is the vertex point
- h =
and k = f(h)
- (h, k) is a minimum point if a > 0 and a maximum point if a < 0
Let us use these rules to solve the question
∵ h(t) = -16t² + 128t
→ Compare it by the form of the quadratic function above
∴ a = -16 and b = 128
∵ a < 0
∴ The vertex (h, k) is a maximum point
∴ The maximum height of the rocket is the value of k
→ Use the rule of h above to find it
∵ h =
= 
∴ h = 4
→ Substitute x in the equation by the value of h to find k
∵ k = h(h)
∴ k = -16(4)² + 128(4)
∴ k = -256 + 512
∴ K = 256
∴ The maximum height of the rocket is 256 feet