For problems 1-5, use the unit circle to calculate the given values. 1. cos 120
2. sin 30
3. tan 150
4. sin 240
5. cos 300

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

18.8cm hope i at all

step-by-step explanation: