Number Problems
Word Problems
Position
100
m^2 − 5m− 14= 0
{7, −2}
100
An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height s at time t seconds after launch is s(t) = –4.9t2 + 19.6t + 58.8, where s is in meters. When does the object strike the ground?
The object strikes the ground six seconds after launch.
100
What is the value of z? 5x^2-4x-37 x=-b+-SR(z^2-4ac)/2a
-4
200
2x^2 − 3x− 5= 0
{5/2, −1}
200
An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. The gravity in this equation will be represented as 16 What will be the object's maximum height? When will it attain this height?
It takes two seconds to reach the maximum height of 144 feet.
200
What is the value of z? 356x^2+4x-456,464 x=-b+-SR(b^2-4ac)/2z
356
300
5r^2=80
{4,−4}
300
An airplane Fly's into a canyon and back out again to its original altitude. It's dive can be represented by the equation x^2-4x-12. What was its original height and the distance it flew during the decent into the canyon?
6 and -2
300
What is the value of z? 9x^2+23x-5 x=-b+-SR(b^z-4ac)/2a
2
400
2x^2−36=x
{9/2,−4}
400
A flazintal is sucked through the earth at shot back out. The formula used is 3x^2+5x-12=0. What are your solutions.
-3 And 4/3
400
What is the value of z? 5x^2-35 x=-z+-SR(b^2-4ac)/2a
0
500
2x^2-3x-20=0
5/2 and -4
500
The Percent of U.S. households with high-speed Internet h can be estimated by h=-0.2n^2+7.2n+1.5, Where n is the number of years since 1990. Use the quadratic formula to determine when 20% of the population will have high speed internet.
1993 and 2023
500
What is the value of z? 10x^2-5x=25 z=-b+-SR(b^2-4ac)/2a
-1.4,1.9
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