Rewrite the equation in vertex form. y = x2 - 6x + 18 a) y = (x + 3)2 + 9 b) y = (x - 3)2 + 9 c) y = (x - 3)2 + 27 d) y = (x - 6)2 + 18

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

The trigonometric ratios sine and secant are reciprocals of each other

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?