Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. a - b
B. a + b
C. a + 2
- b
D. a - 2
+ b
Answer: A
Mathematics
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Add the integers.-11 + (-17)
A. -28 B. 29 C. -29 D. 28
Mathematics
Solve.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How high above the ground must you be to see 60 kilometers? (Round to the nearest tenth of a meter.)
A. 293.9 m B. 17.1 m C. 27.1 m D. 1028.6 m
Mathematics
Provide an appropriate response.Suppose that the accompanying table shows the velocity of a car every second for 8 seconds. Use the Trapezoidal Rule to approximate the distance traveled by the car in the 8 seconds.
A. 221.5 feet B. 145.5 feet C. 291 feet D. 162 feet
Mathematics
Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. 
C. 7
D. 
Mathematics