Answer:
Therefore the car takes 2 s to reach a minimum height from the ground before rising again.
Step-by-step explanation:
Given that a roller coaster ride reach a height of 80 feet.
The height above the ground of the roller coaster is modeled by the function
h(t)=10t²-40t+80
where t is measured in second.
h(t)=10t²-40t+80
Differentiating with respect to t
h'(t)= 10(2t)-40
⇒h'(t)=20t-40
To find the minimum height we set h'(t)=0
∴20t-40=0
⇒20t =40
⇒t=2
The height of the roller coaster minimum when t=2 s.
The minimum height of of the roller coaster is
h(2)= 10(2)²-40.2+80
=40-80+80
=40 feet.
Therefore the car takes 2 s to reach a minimum height from the ground before rising again.
To find the center of enlargement, draw a line that connects corresponding vertices, as shown below.
The transformation that map RST to R'S'T' is an enlargement with scale factor of 3 and center of (0,0)
Answer:
of in math means multiply so I would assume its asking you to multiply 5/7 and 1/7. that would give you 28/3 which simplified gives you 7.
Answer:
B- x=12
Step-by-step explanation:
-5x=-x-48
-12+-48
-12. -12
-60=-5x
-5. -5
x=12
