Twenty-four students took a test. Fourteen students earned an A and 10 students earned a
1 answer:
You might be interested in
Answer:
may be these are your following
u forgot to right options that's why i am doing according to me
if these are wrong please tell me I will do according to your options
Step-by-step explanation:
in this 2 table does not repeat a proportional relationship
-
9² = 12² + 15² - 2 (12) (15) cos (B)
81 = 144 + 225 - 360 cos(B)
81 = 369 - 360 cos (B)
360 cos (B) = 369 - 81
360 cos (B) = 288
cos (B) = 0.8
-
Answer: Cosine B = 0.8
-
-
12² = 15² + 9² - 2 (15)(9) cos (A)
144 = 225 + 81 - 270 Cos A
144 = 306 - 270 Cos A
270 Cos A = 162
Cos A = 3/5 or 0.6
-
Answer: Cosine Angle A = 3/5
