Well first do you parentheses and the multiply all of your exponets
You have to find the cos of angle A, so use the Pythagorean equation and trig laws to find the other side of the triangle created by angle A. 3^2 + x^2 = 5^2. x=4. This means cos(A) = 4/5). Make both cos (A) and cos (B) have equal denominators, and add. 148/185 + 60/185 = 208/185. This answer is correct, though it doesn’t appear to be any of the answers you wrote, so either those answers are wrong or you wrote something incorrectly in the problem.
Answer:
Sleeping looks to be at least 26 years and TV would be 9 years
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
An answer to an equation can be a decimal!
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