Answer:
I'm sorry, I'm not really certain of anything except part A
Step-by-step explanation:
Part A
First of all write the function.
Let x = the number of hours traveled. The y intercept is the value when x = 0
y = 2x + 50 Every 1 hour, the speed increases by 2 mph
(1) The y intercept is 0,50
(2) The car was travelling at 50 mph to begin with.
Part B
Average speed = total distance covered / time interval
Distance between 1 and 2 = 52 + (54 - 52)/1 = 54
Distance between 2 and 3 = 54 + (56 - 54)/1 = 56
Average = (54 + 56)/2 = 55
Part C
I don't see how Part C has any answer. It must change motion even if it winds up where it started from (in which case the velocity cannot be both 60 and 0 at the same time)
I think they want you to answer 0.
Answer:
401/999
Step-by-step explanation:
0.401/100
The sequence of y-values has an initial value of 240 and a common difference of 210. It is an arithmetic sequence.
The 1st description is applicable.
Answer:
The length of CX is 22 ft.
Step-by-step explanation:
Given information: In triangle ABC, F, G, and H are the midpoints of sides BC, CA, and AB respectively.
The medians FA, BG and CH intersect each other at point X.
According to the property of triangle, the intersection point of medians is called centroid and the centroid divides each median in 2:1.
Since X is centroid, therefore points X divides the median CH in 2:1, therefore we can say that CX:XH is 2:1.
It is given that the length of CX is 33.
Therefore the length of CX is 22 ft.
Answer:
at about t = 1.62
Step-by-step explanation:
42 feet below a height of 45 feet is a height of 45-42 = 3 feet. You want to find t such that
h(t) = 3
-16t^2 +45 = 3
-16t^2 = -42 . . . . subtract 42
t^2 = -42/-16 = 21/8 . . . . . divide by -16
t = √2.625 ≈ 1.620 . . . . . take the square root
The trampolinist will land on the trampoline about 1.62 seconds after stepping off the platform.