Multiply and write the result in standard form.4i(5 - 4i)
A. 20i - 16i2
B. 20i - 16
C. 16 + 20i
D. 20i + 16i2
Answer: C
Mathematics
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Determine the equation of the given line, as well as the slope of the line. If the slope is undefined, state this.
A. y = x - 8, m = 1 B. y = -4, m = 0 C. x = -4, m = 0 D. y = x - 4, m: undefined
Mathematics
Factor completely.80x9y7 - 80x7y5 + 48x2y3
A. 16x2y3(5x7y4 - 5x5y2 + 3) B. 16(5x9y7 - 5x7y5 + 3x2y3) C. 16x2(5x7y7 - 5x5y5 + 3y3) D. -16x2y3(-5x7y4 - 5x5y2 - 3)
Mathematics
Perform the indicated operation and express in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Divide, if possible. If a quotient is undefined, state so.-48 ÷ 8
A. -5 B. -7 C. -6 D. 6
Mathematics