Solve.16x2 + 25 = 0
A. 
± i
B. ±
C. ±
+ i
D. ±
i
Answer: D
Mathematics
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Factor, if possible.x2 + 47x + 48
A. (x + 8)(x - 6) B. (x - 8)(x + 6) C. (x + 48)(x - 1) D. Prime polynomial
Mathematics
Use the given information to find the exact value of the trigonometric function.sin ? = - 
,
? lies in quadrant IV
Find sin 
.
A. 
B. - 
C. - 
D. 
Mathematics
Multiply or divide as indicated. Write the answer in lowest terms.2
? 
A. 1
B. 
C. 
D. 2
Mathematics
The tread lives of the Super Titan radial tires under normal driving conditions are normally distributed with a mean of 50,000 mi and a standard deviation of 4,000 mi.
Mathematics