X + y = 10
x - y = 2
add the equations together
2x = 12
x = 6
6 + y = 10
y = 3
Answer:
40
Step-by-step explanation:
to convert into radian measure, multiply by π/180
40 x π/10
Answer:
<h2>C. 9x³ − 11x² − 7x </h2>
Step-by-step explanation:

(-2/3, 2)
Solve for the first variable in one of the equations, then substitute the result into the other equation.