Simplify to the form a + bi.23 + 4i2
A. 23 - 4i
B. 23 + 4i
C. 27
D. 19
Answer: D
Mathematics
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Solve the inequality graphically.4- x > 9- x
A. x > 0 B. x > 1 C. x < 1 D. x < 0
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Solve the variation problem.The distance that a spring is stretched by a hanging object varies directly as the mass of the object. If an object with a mass of 4 kg stretches a spring 25 cm, find the stretch when the object has a mass of 15 kg.
A. 44 cm B. 2.4 cm C. 4.15 cm D. 93.75 cm
Mathematics
Divide and simplify.
÷ 
A. - 
B. - 
C. - 
D. - 
Mathematics
Factor.3r3 - 24s3
A. 3(r - 2s)(r2+ 4s2) B. (3r - 2s)(r2 + 6rs + 12s2) C. 3(r + 2s)(r2 - 2rs + 4s2) D. 3(r - 2s)(r2 + 2rs + 4s2)
Mathematics