Answer:
D I believe (so 2/5 and 3/5)
The answer is 36t^2+4s^2
we cannot combine the t and s terms since they are differnet
we can only facotr
4(9t^2+s^2)
Answer: 44.9 ft
Explanation: 5.6/8.1=0,6913 65•0,6913=44,94 ft
If you want to find cosP , since angles Z and P are 2 complementary angles then cosZ is the same as cosP so you say the cosP=sinZ=4/5 (property of 2 complement angles in a right triangle)
l=51
m=78
n=51
n and l have the same value since it’s an isosceles triangle, so that’s why I doubled 4x-9