Write the expression in standard form.(8 + 2i)(7 - 4i)
A. 64 - 18i
B. -8i2 - 18i + 56
C. 64 + 18i
D. 48 + 46i
Answer: A
Mathematics
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Solve the problem.Without using a calculator, find the geometric mean of 
and 
.
A. 
B. 
C. 
D. 
E. 60
Mathematics
Solve the problem. Round your answer to the nearest tenth, when appropriate.The position of an object moving in a straight line is given by s(t) = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long will it take the object to move 
?
A. 9.7 sec B. 12.8 sec C. 17.0 sec D. 9.5 sec
Mathematics
Determine whether the two pairs of numbers are proportional.8, 9 and 16, 18
A. Yes B. No
Mathematics
Find the least common multiple.x2- 5x+ 4, x2+ 2x- 24
A. (x - 1)(x - 4) B. (x - 1)(x - 4)(x + 6) C. (x - 4)(x + 6) D. (x + 1)(x + 4)(x + 6)
Mathematics