Hey guys can you . i been on this problem for so long now

tan(70)=12cm/y The tangent of the angle equals the opposite over the adjacent

y=12cm/tan(70) Isolate y and plug into calculator

y = 4.4 cm (Rounded to the nearest tenth)

wouldn't it be 7.2 because you have 2 sides which equal 144 and the 2 angles are 90 and 70 and when you subtract them, you get 20. So, 144/20= 7.2. I am just guessing.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !