The answer is c 361.65 :) hope this helps
Answer:
y = -4x
Step-by-step explanation:
Find the slope (m) and the y-intercept (b) of the line. Thereafter, substitute the value of each into y = mx + b to get the equation of the line.
✔️Find the slope (m) using two points on the line, (-2, 8) and (0, 0):
Slope (m) = change in y/change in x
m = (0 - 8)/(0 - (-2))
m = -8/2
m = -4
✔️Find y-intercept (b):
Y-intercept = 0, this is where the line intercepts the y-axis.
b = 0
✔️Substitute m = -4 and b = 0 into y = mx + b:
y = -4x + 0
y = -4x
Answer:
33x
Step-by-step explanation:
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This is simple division:
So, plug it into your calculator and you get:
Your answer's that
it takes 4.5 hrs for the surveillance run.
Answer:the car was traveling at a speed of 80 ft/s when the brakes were first applied.
Step-by-step explanation:
The car braked with a constant deceleration of 16ft/s^2. This is a negative acceleration. Therefore,
a = - 16ft/s^2
While decelerating, the car produced skid marks measuring 200 feet before coming to a stop.
This means that it travelled a distance,
s = 200 feet
We want to determine how fast the car was traveling (in ft/s) when the brakes were first applied. This is the car's initial velocity, u.
Since the car came to a stop, its final velocity, v = 0
Applying Newton's equation of motion,
v^2 = u^2 + 2as
0 = u^2 - 2 × 16 × 200
u^2 = 6400
u = √6400
u = 80 ft/s