Answer:
10x^2 + 11x-6=0
Step-by-step explanation:
Answer:
UT=17 because both UT and RU are the same length, same with QU and US
Step-by-step explanation:
If it helps x is all odd numbers
Answer:
42
Step-by-step explanation:
6*6+9-2-1
36+9-2-1
45-2-1
43-1
42
Use double angle identity:
After substituting and moving to Right side of equation:
This is a quadratic, which can be solved by factoring or quadratic formula.
It may be helpful to replace sin(x) with another variable, then solve.
Now substitute sin(x) back in, we have
Using a unit circle or inverse sine function in calculator we can find the appropriate angles.