To further justify the Cofunction Theorem, use your calculator to find a value for each pair of trigonometric functions below. In each case, the trigonometric functions are cofunctions of one another, and the angles are complementary angles. Round your answers to four places past the decimal point.
?
sin 28° = _____ , cos 62° = _____
What will be an ideal response?
0.4695; 0.4695
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Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.(9 + 4) + 4 = (4 + 9) + 4
A. Associative B. Commutative C. Identity D. Distributive
Factor the trinomial, or state that the trinomial is prime.20x2 + 27x + 9
A. (20x + 3)(x + 3) B. prime C. (4x - 3)(5x - 3) D. (4x + 3)(5x + 3)
Estimate the value as a whole number or as a mixed numeral where the fractional part is 
.16
? 23
A. 408 B. 396 C. 384 D. 388
Solve the problem.This chart shows the number of meals served in a restaurant during each of the past 4 months. Write the information in the chart as a set of ordered pairs.
A. {(2000, January), (2057, February), (2041, March), (2062, April)} B. {(January, 2000), (February, 2000), (March, 2000), (April, 2000)} C. {(January, 2000), (February, 2057), (March, 2041), (April, 2062)} D. {(2000, January), (2057, January), (2041, January), (2062, January)}