Indicate whether the graph represents a one-to-one function.
A. Yes
B. No
Answer: B
Mathematics
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Find the slope of the line through the points.(2, -7) and (9, -5)
A. 
B. 
C. - 
D. - 
Mathematics
Solve the problem. Round your answer, if appropriate.One airplane is approaching an airport from the north at 157 km/hr. A second airplane approaches from the east at 299 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 27 km away from the airport and the westbound plane is 23 km from the airport.
A. -313 km/hr B. -626 km/hr C. -469 km/hr D. -156 km/hr
Mathematics
Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 190 to 304. What was the percent of increase?
A. 160% B. 60% C. 114% D. 38%
Mathematics
Convert the following to polar form:
a. 12 + j7 b. 6 + j10
Mathematics