Write each number in standard notation. 1.057 x 10^3

5.24 x 10^5

3 x 10^8

Evaluate cos2θ for cosθ = square root of 3/2

Which of the following is the shape of a cross section of the figure shown below

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4