Add like terms, if possible, and write the result in descending powers of the variable.-6m5 + 2m5
A. -20m
B. -4m5
C. -4m10
D. Cannot be simplified
Answer: B
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Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3650. Therefore, the total cost to remodel the bathroom is given by 
where x is the number of hours the contractor works. Find a formula for 
What does 
compute?
A. f -1(x) = 
- 146; This computes the total cost if the contractor works x hours.
B. f -1(x) = 
- 3650; This computes the total cost if the contractor works x hours.
C. f -1(x) = 
- 3650; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) = 
- 146; This computes the number of hours worked if the total cost is x dollars.
Solve the problem.Find the expected number of boys in a family of 4 children.
A. 2.5 B. 2.75 C. 3 D. 2
Determine where the rational function is undefined. Determine whether an asymptote of a hole appears at such numbers.R(x) = 
What will be an ideal response?
Solve the problem.The formula for the period of a pendulum on the moon is T = 
, where T is the period in seconds, and ? is its length in feet. Find the period of a pendulum whose length is 10 feet. (Round to the nearest hundredth.)
A. 2.72 sec B. 8.60 sec C. 4.97 sec D. 2.74 sec