Use the cofunction identities to find an angle ? that makes the statement true.cot (2? - 20°) = tan (? - 10°)
A. ? = 10°
B. ? = 
C. ? = 40°
D. ? = 
Answer: C
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Solve.A 15-foot fence on the property line would cast a 30-foot shadow on the shortest day of the year, and the north side of the apartment building is set back 80 feet from the property line. Find the maximum allowed height of the apartment building.
A. 51.33 ft B. 47.67 ft C. 40 ft D. 55 ft
Evaluate the expression.27.2 + 3.39 × (7.8 - 0.5)2
A. 206.4531 B. 210.0531 C. 452.6531 D. 207.8531
Find the remaining zeros of a polynomial with real coefficients and having the specified degree and zeros.Degree 5; zeros: -1, i, 2i
A. -i, -2i B. 1, -i, -2i C. 1, -i D. 1, -2i
Factor completely. If the polynomial cannot be factored, say it is prime.x2 - x - 12
A. (x + 4)(x - 3) B. (x + 3)(x - 4) C. prime D. (x + 1)(x - 12)