Answer:
3√15/4
Step-by-step explanation:
sin x = 2/8
- from the trigonometric rule sin²x+cos²x = 1
- cos²x = 1-sin²x
sinx = 2/8
sin²x = (2/8)² = 2²/8² = 4/64
1- sin²x = 1-4/64 = 64 -4/64 = 60/64 = 15/16
cos x = √(15/16) = √15 /4
3 x cos x = 3 x √15/4 = 3√15/4
Answer:
oh thats easy thats 7
Step-by-step explanation:
i guess
Answer:
6x^2 + 11x -1
Step-by-step explanation:
4x^2 + 9x + 2 + 2x^2 + 2x -3
Add the like terms to get the answer
Answer:
70%
Step-by-step explanation:
21/30 p/100
30/30=2,100/30=70
