The height, y metres, of an object projected directly upwards from the grouncl can be modelled by y = 17t-5t^2, where t is the time in seconds after it leaves the ground. (iii)...

The height, y metres, of an object projected directly upwards from the grouncl can be modelled by y = 17t-5t^2, where t is the time in seconds after it leaves the ground. (iii)...

A rectangular shipping crate is in the form of a cube. The width is decreased by 2 m while the length is increased by 2m and the height is increased by 3 m. The new crate has a volume of 168...

Algebraic question, possibly including the discriminant and/or quadratic formula, because this question was under the quadratic formula category.

I know how to factor and how to use the quadratic formula... but however I can't seem to grasp, when to use quadratic formula. I mean when a relation cannot be factored, but how do you determine it...

(z^2)/3=z/3(z over 3)+5/6 (5 over 6).

The percent of U.S. households with high-speed internet h can be estimated by: h = -0.2n2 + 7.2n + 1.5 Where n is the number of years since 1990. A. Use the Quadratic Formula to determine...

I dont understand this question :/

The length of a rectangle is 3” more than twice the width. The area of the rectangle is 150 in^2. Find the dimensions of the rectangle.

It is decided to increase the size of the pool by extending the base and altitude each by x feet. Find x so that the new area of the pool is 24 square feet. I am at a loss to start...

Use the quadratic formula to solve : 0.7x2-4.2x-0.7=0 The solution set is {_}

A picture frame holds a 4-in. by 6-in. photograph. The frame adds a border x inches wide around three sides of the photo. On the fourth aide the frame forms a border that is 3x-0.5in wide. The combined...

The manager of a park enclosed an area for small dogs to play. He made the length 15ft longer than the width and enclosed an area covering 1350 square feet. What are the dimensions of the dog's play...

In the past, professional baseball was played at the Astrodome in Houston, Texas. The Astrodome has a maximum height of 63.4m. The height of a baseball t seconds after it is hit straight up in...

ax2+bx+c=0

Caroline has a patio of uniform width around the perimeter of her rectangular pool. The pool measures 22 ft by 12 ft. If the area of the pool and the patio is 504 ft , what is the width of the...

Roger mows half of a rectangular lawn that measures 40 m by 30 m by mowing strips of equal width around the perimeter. Cookie mows the small inner rectangle. how wide a strip should roger have so...

Arif's backyard is 2626 by 3535 meters. He wants to put a flower garden in the middle of the? backyard, leaving a strip of grass of uniform width around the flower garden. To be? happy, Arif must...

Please help!

Assume that the relationship between the amount of revenue and the price of a ticket, is given by the quadratic function , where represents the cost of a ticket in Egyptian pounds (Egypt’s currency),...

How do you solve this equation using the quadratic formula? 2x^2+2x+5=0

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