Question 1 is legs
question 2 is hypotenuse
question 3 is true
Answer: x = - 17/9
Step-by-step explanation:
Answer:
sin(arccos(-4/√25)) = 0.6
Step-by-step explanation:
The expression you want to evaluate is
sin(arccos(-4/√25))
= sin(arccos(-4/5))
We place this expression into a calculator and get the result
arccos(-4/5) = 2.498 rads = 143.1°
then
sin(143.1°) = 3/5
sin(143.1°) = 0.6
sin(arccos(-4/√25)) = 0.6
Answer:
2/7, 5/3, 6/2
Step-by-step explanation:
2/7 is a proper fraction, so it's the smallest of these.
5/3 is greater than 1, but less than 2 & 6/2 is 3, so the order is 2/7, 5/3, 6/2.
15 - 2x = 3x
15 = 3x + 2x
15 = 5x
5x = 15
x = 15/5 = 3