Simplify to the form a + bi.i5 + i7
A. -2
B. 2i
C. 2
D. 0
Answer: D
Mathematics
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Factor completely.-x2 - 9x + 36
A. -(x + 12)(x - 3) B. -(x - 12)(x + 3) C. -(x - 12)(x - 3) D. -(x - 12)(x + 1)
Mathematics
Find the exact value of the expression.tan 30° - sin 45°
A. 
B. 
C. 
D. 
Mathematics
Determine whether or not the function is one-to-one.f(x) = 
A. No B. Yes
Mathematics
Evaluate 
at the indicated value of x. Round your result to three decimal places.
?
?
A. 1.85 B. 0.541 C. 0.014 D. -0.541 E. -1.85
Mathematics