-x^2 - 2x - 5=0
-(x^2 + 2x + 1) -4=0
(x +1)^2= -4
=> Impossible. There is no x
Answer:
x ≈ 31.0°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tanx =
=
, then
x =
(
) ≈ 31.0° ( to 1 dec. place )
D. After 150 minutes, the 5 cent one is more.
Hope this helps!
Answer:
, or as a mixed number, 3 
Step-by-step explanation:
It helps to simplify them.