Write the complex number in rectangular form.3(cos ? + i sin ?)
A. 3i
B. -3i
C. 3
D. -3
Answer: D
Mathematics
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Evaluate the expression.3 ? (3 + 3)2 - 4 ? (5 - 3)2
A. 416 B. 92 C. 260 D. 128
Mathematics
Determine whether the equation is linear or nonlinear.x2 - 2 = 15
A. linear B. nonlinear
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.0.566
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.There are currently 67 million cars in a certain country, increasing exponentially by 4% annually. How many years will it take for this country to have 83 million cars? Round to the nearest year.
A. 5 yr B. 69 yr C. 3 yr D. 4 yr
Mathematics