Jasper needs wood for a rectangular sandbox. The sandbox will be 8 feet by 4.5 feet. He knows the perimeter is found using the expression 2l+2w, or 2(l+w). How many feet of wood should Jasper use?

its 4 because 2 times 2 is 4, if you double the number two you get four

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: