Answer:
Step-by-step explanation:
h(t) = 0.3t -t +21t , t=time and h=height
1.
at t=0 the hight is h=0
h(0) = 0.3*0 -0 +21*0 = 0
It makes sense that at the time 0 seconds when the rollercoaster did not leave the hight is 0 feet.
2.
for t=10 substitute t with 10
h(10) = 0.3*10 -10 +21*10 = 3 -10 +210 = 203
3. see graph
4. the rollercoaster is going up
Answer:
Option d. 75 times.
Step-by-step explanation:
Side length of a square pyramid of Pyramid A = 9 inches
height of pyramid A = 4 inches
where,
a = sides, h = height
= 27 × 4
= 108 inches³
and the volume of pyramid B = 8100
Now we will divide volume of pyramid B by the volume of pyramid A
= 75
Therefore, the volume of pyramid B is 75 times bigger than pyramid A.
Option d is the answer.
Answer:
- f(5), t=5 Minutes.
- f(60), t=60 Minutes
Step-by-step explanation:
f(t) is the temperature of the yam t minutes after it is placed in the oven.
- In f(5), t=5 Minutes, therefore f(5) is the temperature of the yam 5 minutes after it is placed in the oven. At f(5), the yam is still in the oven since it is not yet up to 45 Minutes.
- In f(60), t=60 Minutes, therefore f(60) is the temperature of the yam 60 minutes after it is placed in the oven. Since the yam is taken out after 45 minutes, at f(60), the yam is no longer in the oven.