13. Given a = 8,5 = 7, C = 25°. Evaluate A. A) 63.30 B) 50.40 C) 85.8° D) 60.8° 14. Given a =9, b = 7, B = 30°. Evaluate: C B) C A) A where A > 90° C Round your answers to the nearest hundredth. 20. Evaluate cos(x + y) assuming that sin(y) = 1 and cos(x) = -. Assume also that x is in the interval ( 0, and y is in the interval (5, 5). Give the exact answer. 21. Evaluate cos(x - y) assuming that sin() Assume also that x is in the interval ( 0, and that y is in the interval (5, 4). Give the exact answer.
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elaizatulao5
Pls..,give me an explanations of your answer,thanks!
Answers & Comments
Answer:
Questions:
Evaluate:y,when x = -3 and y= 5
Answer:
A.-90
Step-by-step explanation:
13. Given a = 8,5 = 7, C = 25°. Evaluate A. A) 63.30 B) 50.40 C) 85.8° D) 60.8° 14. Given a =9, b = 7, B = 30°. Evaluate: C B) C A) A where A > 90° C Round your answers to the nearest hundredth. 20. Evaluate cos(x + y) assuming that sin(y) = 1 and cos(x) = -. Assume also that x is in the interval ( 0, and y is in the interval (5, 5). Give the exact answer. 21. Evaluate cos(x - y) assuming that sin() Assume also that x is in the interval ( 0, and that y is in the interval (5, 4). Give the exact answer.