Write the expression as a complex number in the form a + bi.7 + 
A. 7 + 3
i
B. 21 + 0i
C. 7 + 7
i
D. 7 - 3
i
Answer: A
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Mathematics
Solve.Find the perimeter. Approximate the result to the nearest tenth using 3.14 for ?.
A. 99.1 yd B. 87.2 yd C. 124.2 yd D. 156.2 yd
Mathematics
Determine the number of triangles that can be drawn with the given data.a = 35, b = 71, A = 78°
A. 2 B. 3 C. 1 D. 0
Mathematics
Write any percent as a decimal and any decimal as a percent.A record store downtown is offering 2% off all purchases for the month of December.
A. 0.02% B. 0.02 C. 0.2 D. 2
Mathematics