Answer:

Step-by-step explanation:
We know by definition that the cosine is an even function, therefore

We also know that the sin is an odd function, therefore

By definition:

Then:


Using these trigonometric properties we can simplify the expression

Multiply your total by your percentage
90 * .80 = 72
72 is the number of questions she answered correctly
Answer: 20 miles? lol
Step-by-step explanation:
Answer: Because when you divide 25 by 8, the result is greater than 3.