Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 75°
A. 
B. 
C. - 
D. - 
Answer: A
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Find an equation of the tangent line at the given point P.y = x2 + 5x, P(4, 36)
A. y = 13x - 16
B. y = - 
+ 
C. y = -39x - 80
D. y = 
+ 
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. 
+ 
- 
+ 13
B. 
+ 
- 
- 13
C. 
+ 
+ 
+ 13
D. 
+ 
+ 
- 13
Provide an appropriate response. The degree of a term that has only one variable (with a nonnegative exponent) is the exponent of that variable. The degree of a term that has more than one variable is the sum of the exponents of the variable factors. That is, the degree of 2x3y4 is 7 since the sum of the exponents (3 + 4) is 7. Given this knowledge, find the degree of the polynomial: y10 + 2xy8 - 5x4y7
A. -5 B. 11 C. 10 D. 7
Evaluate using a calculator. Express answers to the nearest ten-thousnadth.log 50
A. 3.912 B. 1.199 C. 4.412 D. 1.699