Answer:
Step-by-step explanation:
hello :
cos²θ +sin²θ = 1 and cosθ =4/5
(4/5)² + sin²θ = 1 so : sin²θ = 1 - 16/25
sin²θ = 9/25 = (3/5)²
sinθ = 3/5 or sinθ = - 3/5 because : (3/5)²= (- 3/5)²= 9/25
Answer:
11
Explanation:
f(x) = -3x - 1 when f(x) = -4
f(x) = -4 * -3 -1 = 12 - 1 = 11
1/2 brainlest please
Step-by-step explanation:
It would be 0 then 1/2 then 2/2 then finally 1
Answer:
I need this answer too !!!
Answer:
n = 7
Step-by-step explanation:
3n = 21
n = 7
