Answer:
s = 22.5 m
Step-by-step explanation:
the equation for the speed change of a coach moving along a straight section of the road and starting braking at a speed of 20 m / s has the form v (t) = 25-5t. Using integral calculus, determine the coach's braking distance.
v (t) = 25 - 5 t
at t = 0 , v = 20 m/s
Let the distance is s.
Let at t = t, the v = 20
So,
20 = 25 - 5 t
t = 1 s
So, s = 25 x 1 - 2.5 x 1 = 22.5 m
It depends what kind of math it is. Fractions, angles, or something else. I don’t want to give you wrong answers.
Answer:
The 3rd side of the rug is 2 ft long
Step-by-step explanation:
6+6=12
14-12=2
2 ft long
You definitely know how to find the area of a rectangle ... length times width. Right ?
Well, write down the area of each rectangle, and then add up the 4 areas (using + signs).
Hint: Each little rectangle on the right has an area of x-squared, so the sum of just those two is 2x-squared.
