Answer:
25
Step-by-step explanation:
f(x)=x-4f(3)=3-4so f(3)= -1
Answer:
terminating
Step-by-step explanation:
it would be repeating if it said 72.72727272...
The slide and the ladder made a right angle triangle with the ground. The angle that the slide made with the ground is labeled as

in the diagram below. We can use the trigonometry ratio to work out the size of the angle.
8.3 is the side opposite to the angle and 14.5 is the hypotenuse. We need to use the Sin ratio




° to the nearest degree
Yes, you're right! The first step is rewriting the equation as

Subtract
from both sides:

Use the property
to rewrite the equation as

Divide both sides by 

Alternative strategy:
Consider both sides as exponents of e:

Use
to write

Divide both sides by a:

Consider the logarithm base b of both sides:

The two numbers are the same: you can check it using the rule for changing the base of logarithms