Which graph correctly solves the system of equations below?

y = −one halfx2 + 2
y = 2x2 − 8

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Evaluate cos2θ for cosθ = square root of 3/2

Which of the following is the result of expanding the series