To the nearest millimeter, a cell phone is 82 mm long and 40 mm wide. What is the ratio of the width to the length? The ratio of the width to the length is ___.

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

What is the value of r of the geometric series?

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).