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 below). Find the measure of ?PSF in degrees, minutes and seconds.
48° 46' 45"
Mathematics
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Write the expression in exponential form. Assume that all variables represent positive real numbers.
3
A. x-3/5 B. x3/5 C. x5/3 D. x2
Mathematics
Solve the equation.
- 
= -2
A. 3 B. -5 C. -3 D. 5
Mathematics
Factor the expression completely.28x2 - 343
A. (14x + 49)(2x - 7) B. 7(2x + 7)(2x - 7) C. (2x + 7)(14x - 49) D. 7(2x - 7)2
Mathematics
Solve the equation.
= 7
A. {48} B. {-24} C. {24} D. {12}
Mathematics