C B A are the orders of the answers
Jessica solved for the correct value of a, but Sally's review was incorrect.
Answer:
1/2
Step-by-step explanation:
cos(θ) = √(1 -sin(θ)²) = √(1 -3/4) = √(1/4)
cos(θ) = 1/2
Answer: 4.05
x
y −
2
x + 45
y + 9.46
Step-by-step explanation:
9x + 4.05xy + 15y + 30y - 11x + 9.46
4.05xy + 9x - 11x + 15y+ 30y+ 9.46
4.05
x
y −
2
x + 45
y + 9.46