Use technology to find the determinant.
?
?
A. ?119
B. ?-119
C. ?-207
D. ?-115
E. ?121
Answer: B
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Evaluate the expression. ? |-27| ?
A. -27 B. 54 C. 27 D. -25 E. -28
Use a proportion to solve the problem.It is recommended that there be at least 10.4 square feet of floor space in a classroom for every student in the class. Find the minimum floor space that 40 students require. Round to the nearest tenth if necessary.
A. 384.6 ft2 B. 26.0 ft2 C. 416 ft2 D. 10.4 ft2
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 5 ? x ? 5, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 125 B. 94 C. 188 D. 376
Graph the inequality.x - y < -6
A. 
B. 
C. 
D. 