Find surface area of this cone
radius= 4cm
slanted height= 7cm

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Explain how to graph a scatterplot and its regression line using a regression calculator.