Answer: 15.7659
Explanation: the column the 4 is in is the ten thousandths column. Since the number after it is 8, which is bigger than 5, you round up to make is 15.7659
9^3 is 729 so x^3 = 512 and you find it to be 8
Cosα=x/L
x=Lcosα, we are told the ladder is 10ft and α=42.5 so
x=10cos42.5° ft
x≈7.37 ft (to nearest hundredth of a foot)
Answer:

Step-by-step explanation:
Given that the angle
is located in Quadrant II; and

In Quadrant II, x is negative and y is positive.

To find
, we first determine the opposite angle of
.
This will be done using the Pythagoras theorem.

Therefore:
