Write the expression in the standard form a + bi.
3
A. 4
- 4
i
B. -4
- 4
i
C. -4 - 4
i
D. 4
+ 4
i
Answer: B
Mathematics
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Multiply the rational expressions: 
a. 
b. 
c. 
d. 
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A forester from his vantage point on a hillside sees a puff of smoke in a valley below him. He measures the angle of depression (the acute angle between the horizontal and the line of sight) to the smoke from his position to be 21°13'15" (see figure). Find the measure of ?PSF in degrees, minutes and seconds.
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Change to the equivalent decimal.5
A. 5.1 B. 0.5 C. 50 D. 5
Mathematics
Solve the problem.Wayne has $17.52 in his wallet. Janice has a debt note for $20.08 in her wallet. Find the difference between these amounts.
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Mathematics