Multiply.8 ? (-2) ? (-9) ? 4 ? (-4)
A. 580
B. -3
C. 2304
D. -2304
Answer: D
Mathematics
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Find the exact value. If any are not defined, write undefined.cot 270°
A. 0
B. 
C. Undefined
D. -1
Mathematics
Solve the problem.Two airplanes leave an airport at the same time, one going northwest (N35°W) at 423 mph and the other going east at 349 mph. How far apart are the planes after 2 hours to the nearest mile?
A. 1273 mi B. 1188 mi C. 1428 mi D. 714 mi
Mathematics
Write the equation of the line in slope-intercept form.m = - 
, y-intercept (0, 7)
A. y = 
x + 7
B. y = - 
x - 7
C. y = 
x - 7
D. y = - 
x + 7
Mathematics
Multiply the expressions.(2r - 5)(2r + 5)
A. 2r2 - 25 B. 4r2 - 20r - 25r2 C. 4 + 20r - 25r2 D. 4r2 - 25
Mathematics