For the given correspondence, write the domain and the range. Then determine whether the correspondence is a function.{(1, 9), (8, -8), (-9, -2), (4, 5), (-2, 0)}
A. domain: {-8, -2, 0, 5, 9}, range: {-9, -2, 1, 4, 8}; No, it is a not a function.
B. domain: {-9, -2, 1, 4, 8}, range: {-8, -2, 0, 5, 9}; No, it is a not a function.
C. domain: {-9, -2, 1, 4, 8}, range: {-8, -2, 0, 5, 9}; Yes, it is a function.
D. domain: {-8, -2, 0, 5, 9}, range: {-9, -2, 1, 4, 8}; Yes, it is a function.
Answer: C
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A. 62.5 B. 187.5 C. 10 D. 93.75
Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3500. 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) = 
- 3500; This computes the total cost if the contractor works x hours.
B. f -1(x) = 
- 140; This computes the total cost if the contractor works x hours.
C. f -1(x) = 
- 3500; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) = 
- 140; This computes the number of hours worked if the total cost is x dollars.
Given matrix A, find the indicated minor or cofactor.Find the minor M21.A =
A. -1 B. 7 C. -7 D. 1
Find projwv.v = 
, w = 
A. 
B. 
C. 
D. 