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:
Its C. you can plug it in to make sure :D
Step-by-step explanation:
12500mlx0.4=5000ml
12500-5000=7500ml
7500ml=7.5L
Answer: A) 24.8 B) 8.8
Step-by-step explanation:
You could try using cosine ( adj. over hypotenuse) on a calculator.
