Number one: Just plot down on the number like the numbers you have. Just took the test for this.
Answer:
5
Step-by-step explanation:
4^2 + 3^2 =
16 + 9 = 25
√25=5
Answer:
5/13
Step-by-step explanation:
sine=opposite/hypotenuse
cosine=adjacent/hypotenuse
opposite=-12 (I know that this is not possible)
hypotenuse=13
These are ratios, not real lengths
using the Pythagorean theorem, the other leg is 5
cos (theta)=5/13
They are equal to each other
