Answer:
8.48
Step-by-step explanation:
Answer:
cos(x) = square root 2 over 2; tan(x) = 1
Step-by-step explanation:

was, before it was rationalized,

Therefore,

The side opposite the reference angle measures 1, the hypotenuse measures square root 2. That makes the reference angle a 45 degree angle. From there we can determine that the side adjacent to the reference angle also has a measure of 1. Therefore,
and
since tangent is side opposite (1) over side adjacent (1),
tan(x) = 1
80% of 7.5 is 6.
so if he travelled 80% further, it would be 7.5+6 which is
13.5
Answer:
4.472
Step-by-step explanation:
So we just have to divide
22.36 / 5 = 4.472