Show all steps and work

Show all steps and work

Jorge is kicking a ball straight up into the air. The height of the ball is described by the equation h=-16t^2+20t, where h is the height of the ball and t is the time in seconds. How long will...

What number is exactly midway between 23 − √17 and 23 + √17? What number is exactly midway between [−b −((√b^2) − 4ac))]/2 and [−b +((√b^2) − 4ac))]/2?

A ball is thrown up with an initial velocity of 32 feet per second. How many seconds will it take for the ball to return to the ground?

Quadratic equation

Solve the quadratic equation by the square root method. Write your answers in exact form, then round to 3 decimal places. (Enter your answers as comma-separated lists.) 1- (3x^2)/...

Jenny is y^2 old and her daughter is y, when jenny is 13y, her daughter will be y^2. Find y

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...

during a test flight an aircraft flies from sandy lane to white city and back to sandy land. the distance between sandy land and white city is 450 km and the total time taken for the whole journey...

An object is thrown upward from the top of a 160-foot building with an initial velocity of 144 feet per second. The height h of the object after t seconds is given by the quadratic equation h=−16t^2+144t+160...

An object is dropped from 21 feet below the tip of the pinnacle atop a 505-ft tall building. The height h of the object after t seconds is given by the equation h equals negative 16 t squared plus...

An object is dropped from a window. The height S of the object after t seconds is given by the equation S= -16 t squared+ 100. Find how many seconds pass before the object hits the ground. (Hint:...

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...

Forensic scientists use the following function to find the height of a woman if they are given the height of her femur bone, f, in centimeters. Find the height of a woman whose femur measures 50 centimeters...

PLease can you help me solve this equation.

Length of box (3x-5) ft; width of box (2x-1) ft, volume is 40 ft. What is x. I believe you have to use the quadratic equation but can't figure out what I am doing wrong.

My math teacher didnt even teach me how to do this

I have to solve the quadratic equation: x^2 +1.5x-10 My teacher said to multiply the equation by 2 and solve. how and why do I do this? Won't this change the equation...

well i need help regarding this question. Find the value of k for which the quadratic equation x2+5x+k=0 has no eual roots. please help. i m stuck at this for countless minutes...

if -4 is the root of a quadratic equation x2+px-4=0 and the quadratic equation x2+px+k=0 has equal roots, find the value of k

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