PLEASE HELP!!! 3. Developing Proof Complete the following proof by filling
in the blanks.

Which of the following expressions is equal to 2x^2+8

The value of cos 30° is the same as which of the following?

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3