Help Please !! The trajectory of a potato launched from a potato cannon on the ground at an angle of 60 degrees with an initial speed of 50 meters per second can be modeled by the parabola:
f(x) = 1.73x-0.0078x, where the x-axis is the ground. Find the height of the highest point of the trajectory and the horizontal distance the potato travels before
hitting the ground.

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.