First. distribute and multiply the the 4 to the 3^2 and the -5
so then it becomes 21+ 36 - 20
second. add and subtract that
answer is: 37
From an acceleration-time graph, you can work out the area under the graph to find the velocity. There are two triangles on the graph as shown below. The total area of the triangles are

Hence, the distance is 250×30=7500 ft
Answer:
n=3
Step-by-step explanation:
Answer:
x = 25
Step-by-step explanation:
This is a similar triangle problem
Therefor two sides of triangle A are in the same proportion as two sides of triangle B
----------------------------
Triangle A
Short leg = x
Long leg = 60
proportion = x/60
Triangle B
Short Leg = 60
Long leg = 144
proportion = 60/144
Therefor
x/60 = 60/144
multiply both sidees by 60
x = 60*60/144
x = 25