Determine whether the given angles are complementary, supplementary, or neither.
A. supplementary
B. complementary
C. neither
Answer: B
Mathematics
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Find the unit vector in the same direction as the given vector.v = 5i
A. u = i
B. u = 
i
C. u = 5i
D. u = 25i
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which two hour period did the temperature increase the most?
A. 10 a.m. to 12 p.m. B. 12 p.m. to 2 p.m. C. 9 a.m. to 11 a.m. D. 10 a.m. to 11 a.m.
Mathematics
Solve the problem.Round 1.421 to the nearest hundredth.
A. 1.43 B. 1.41 C. 1.42 D. 1.4
Mathematics
The table shows the change in the price of a alarm clock. At the end of the week, the price is 
.
Day of the weekChange in priceMonday
Tuesday
Wednesday
Thursday
Friday
A.
B.
C.
D.
Mathematics