Answer:
sin Ф = -1 and cos Ф = 0
Step-by-step explanation:
If the angle is -pi/2 (or -90 degrees), then the radius must be 1 and the opposite (vertical) side -1. The horizontal (adjacent) side is 0.
Thus, the sine of this angle is opp/hyp = -1.
The cosine is adj/hyp = 0.
Answer:
x = 6
Step-by-step explanation:
y becomes 4x + 6 due to substitution
4x + 6 = 4x + 6
6 = 6
x = 6
Step-by-step explanation:
ab = a×b
= 8/11 × 4/5
= 32/55 or 1 whole 23/32
Hope this helped and please mark brainliest if you get it right!!
Answer:
45
Step-by-step explanation:
3 over 2 so then you take the 30 over 1 then the 2 at the bottom you divide the 30 and the 2 and you get 15 then you take the 15 times 3 and that is your answer 45.