Interpret the meaning of the slope and the y-intercept of the equation in terms of the conditions stated in the problem.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked.
A. 32 signifies the hourly rate, and 42 signifies the overhead charge.
B. 42 signifies the hourly rate, and 32 signifies the overhead charge.
C. -42 signifies the hourly rate, and 32 signifies the travel cost.
D. 74 signifies the cost for an on-site inspection.
Answer: B
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Solve the problem.Kerry invests $553 in a savings account that earns 3.4% compounded annually. Andy invests $553 in a savings account that earns 5% compounded annually. How much is in each of their accounts after 10 years and after 20 years?
A. Kerry: $747.15; $1043.80 Andy: $857.88; $1397.40 B. Kerry: $772.56; $1079.28 Andy: $900.78; $1467.27 C. Kerry: $722.59; $944.18 Andy: $817.03; $1207.13 D. Kerry: $825.98; $825.98 Andy: $993.11; $993.11
Given matrices A and B, find the indicated matrix if possible.A = 
, B = 
Find AB.
A. 
B. 
C. AB is not defined.
D. 
Solve the equation.4(y + 8) = 6y + 32
A. 0 B. 64 C. -32 D. 32
The average speed of a vehicle on a stretch of a route between 6 A.M. and 10 A.M. on a typical weekday is approximated by the function
?
, where 
is measured in miles per hour and 
is measured in hours, with 
corresponding to 6 A.M.
?
At what time of the morning commute is the traffic moving at the slowest rate? What is the average speed of a vehicle at that time?
?
time = __________ A.M.
?
average speed = __________ mph
What will be an ideal response?