Multiply. Write your answer in a + bi form.7i(8 - 8i)
A. 56i + 56i2
B. 56 + 56i
C. 56i - 56i2
D. 56i - 56
Answer: B
Mathematics
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Divide using synthetic division.(5x3 + 11x2 - 16x - 12) ÷ (x + 3)
A. 5x2 - 4x - 4
B. 5x - 4
C. 
x2 + 
x - 
D. -5x2 - 3x - 4
Mathematics
Write the complex number in rectangular form.9(cos 80° + i sin 80°)
A. -0.5 - 3i B. 8.9 + 1.6i C. 0.5 + 3i D. 1.6 + 8.9i
Mathematics
Convert the temperature.63°F = °C
A. 145.4°C B. 17.2°C C. 3.0°C D. 81.4°C
Mathematics
Multiply.(2x + 9y)2
A. 4x2 + 36xy + 81y2 B. 2x2 + 36xy + 81y2 C. 4x2 + 81y2 D. 2x2 + 81y2
Mathematics