Cos -2x or -cos2x, it's the difference.
(42 - 14sqrt2)/5 because rationalizing means getting the root out of the denominator, which is done by multiplying the denominator by a negative or positive root depending on the situation
17x11=187 need more character there done
Answer:
It's a function
Step-by-step explanation:
Functions can only have one output for each input. And since all the x values for each point are different, there is only one output (y-value) for each input(x-value).
The answer is 1800 because you have to follow the formula for volume which is
Volume=Length x Width x Height
1800= 18m x 5m x 20m
