Draco steals and throws Neville's red ball straight up at 78 feet per second from about 10 feet above the ground. The ball's height in feet above the ground after t seconds is given by h(t)=−16t^2+78t+10...

Draco steals and throws Neville's red ball straight up at 78 feet per second from about 10 feet above the ground. The ball's height in feet above the ground after t seconds is given by h(t)=−16t^2+78t+10...

solve the quadratic equation. if it has no real root, state so. the answer is 1.5 or -2.5, but i dont know the method

how to solve this problem

it is out of 6 marks you have to show your steps and have a final statement I dont understand how to do this question

A square mirror has sides measuring 2 feet less than the sides of a square painting. If the difference between their areas is 32 square feet, find the lengths of the sides of the mirror and painting...

Someone installs 96 feet of electric fencing around a rectangular headquarters. If the headquarters covers 540 square feet, what are its dimensions?

s= 7t+16t^2 How long does it take the object to fall 78 feet?

how many puppies were in the litter?

t=3/5 , t=5 , t=-5

Suppose the valley following the lift hill is in a shape of a parabola that has a maximum drop of 14m and the start and end points are 20m apart. Write a quadratic equation that models the profile...

A toy rocket is launched form a 3m platform, at 8.2m/s. The height of the rocket is modelled by the equation h=-4.0t^2+8.1t+3 where h is the height, in metres, above the ground and t is the...

A newspaper's profit is $20 per year for each of its 2,500 subscribers. Management estimates that the profit per subscriber will increase by 1¢ for each additional subscriber over the current 2,500...

what's the value of n to make perfect square? x^2+11x+n

A,B,C and D are posts on the banks of a 20 m wide canal. A and B 1 m apart. If OA is the same length as CD find how far C and D are apart

If The Solutions To A Quadratic Equation Are Not Real Numbers Then What Does That Say About The X Intercepts On The Graph Of The Function F

ABCD is a rectangle in which AB=21 cm. The square AXYD is removed and the remaining rectangle has area 80 cm2. Find the length of BC.

Johnny Jumpshot is playing in the "Big" game. At the buzzer Johnny is attempting the game winning shot. The path of his basketball shot can be modeled by the equation h= -0.09d2 + 0...

The number of integer x such that x2x-3(2x+2)+25 =0 Please help with this roots question

s=7t+16t^2 How long does it take the object to fall 78 feet?

A gardener plants 600 cabbages. The number of cabbages in each row is 10 more than twice the number of rows. If equal numbers of cabbages were planted in each row, how many rows all together?

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