a penguin leaps out of the water while swimming. The height y (in feet) of a proposing penguin can be modeled by y= -16x2 + 20x where x is the time (in seconds) since the penguin leaps out of the water. find the root of the equation when y = 0

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.