Answer:
The answer is C (6.21).
Step-by-step explanation:
Speed = distance / time
since they are moving in opposite direction, the time is the sum of the two times = 2 1/2 + 4 = 6 1/2 = 13/2
speed = 585/(13/2) = 90 miles per hour.
Answer: y = -3x + 10
Step-by-step explanation:
Using the formula for finding the equation of line ;
y -
= m ( x -
)
= 4
= -2
m = -3
Substituting into the formula , we have
y - (-2) = - 3 ( x - 4 )
y + 2 = -3x + 12
writing the equation of the line in slope - intercept form , this means that we must make y the subject of the formula , that is
y = -3x + 12 - 2
y = -3x + 10
10 feet and 11 inches is the answer.
Hope this helps! :)