Answer:
A(r)=15-3r
Step-by-step explanation:
switch the sign of +3r to make it -3r
Answer:
You didn't provide a image of the problem how am I suppose to help you
Answer:
36
Step-by-step explanation:
Answer:
9.
Step-by-step explanation:
334÷38=8.79, rounded up to 9.
Answer:
4/5
Step-by-step explanation:
In a right triangle such as this one
cos (angle) = adjacent leg / hypotenuse
cos(k) = KL / 15
You will need to find the leg length KL using Pythagorean Theorem
15^2 = 9^2 + (KL)^2 KL = 12
then cos k = 12/15 = 4/5