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Quadratic Equations
Page 9
Questions (6,503)
The profit p(x) of a cosmetics company in thousands of dollars is given by P(x) = -5x^2 + 400x - 2550, where x is the amount
5 answers
asked by
Kp
4,070 views
Which quadratic rule represents the data in the table?
x: -1 | 0 | 1 | 2 | 3 Y: 4 | 5 | 4 | 1 | -4 A. y= -2x^2 + 5 B. y= -x^2 + 5
15 answers
asked by
anonymous
9,228 views
A baseball is thrown in the air at 5 ft. with an initial velocity of 42 ft per second. let t represent time and seconds. after
4 answers
asked by
Amber
960 views
Prove 3(x+1)(x+7)-(2x+5)² is never positive
So, 3(x+1)(x+7)-(2x+5)(2x+5) =3(x²+8x+7)-(4x²+20x+25) =3x²+24x+21-4x²-20x-25
9 answers
asked by
Anonymous
10,156 views
A stunt pilot is testing a new plane. The equation that models his height over time is f(x)=15x^2 -195x +950, where x is his the
7 answers
asked by
Elli
2,567 views
The height of a square-based box is 4 cm more than the side length of its square base. If the volume of the box is 225 cm3. What
4 answers
asked by
Laura
3,406 views
In ax(squared) + bx +c, if ac is negative and b is positive, what do you know about the factors of ac?
3 answers
asked by
Jane
649 views
Rearrange this expression into quadratic form, ax2 bx c = 0
.2= ((x^2)/(55-x)) where a = 1, and identify the values of b and c.
9 answers
asked by
Anonymous
11,241 views
Megan wants to find the minimum value of the function y = x^2 - 10x + 3. She begins to convert the equation into vertex form by
6 answers
asked by
Purple Haze
952 views
Find the discriminant for the quadratic equation f(x) = 5x^2 - 2x + 7 and describe the nature of the roots.
discriminant is 144,
5 answers
asked by
Jass
2,049 views
Which quadratic rule represents the data in the table?
x –1 0 1 2 3 y 4 5 4 1 –4 A. y = –2x² + 5 B. y = –x² + 5 C. y =
1 answer
asked anonymously
206 views
A model rocket is launched vertically upward so that its height (measured in feet) t sec after launch is given by the following.
4 answers
asked by
Talbert
2,678 views
The height, h(t), of a projectile, in metres, can be modelled by the equation
h(t) = 14t – 5t2, where t is the time in seconds
5 answers
asked by
colin
3,449 views
For what values of k will the functon f(x)=kx^2-4x+k have no zeros
Determine the values of k for which the function
4 answers
asked by
Farrah
4,091 views
How many times will the graph of y=3x^2-10 intersect the x-axis?
A. 0 B. 1 C. 2 D. 3 Idk plz help :(
4 answers
asked by
:)
922 views
The area of a square garden is represented by the quadratic expression 9x2 - 12x + 4. The length of one side of the square
3 answers
asked by
Jalen
915 views
if 5 times a certain integer ìs subtracted from twice the square of the integer the result is 63. find the integer
4 answers
asked by
GRACE
1,337 views
Write equation of parabolla with vertex ( 4,3 ) passes through ( 5,2 ) vertical axis
6 answers
asked by
muudee
2,141 views
The stopping distance of a car traveling 25mph is 61.7ft, and for a car traveling 35mph it is 106ft. The stopping distance in
4 answers
asked by
Alyssa
1,415 views
An arrow is shot from the top of a platform. The path of the arrow can be modelled by
the relation h = -0.005(t - 26)^2 + 5,
3 answers
asked by
Bhaviya
660 views
Determine an equation in simplified form, for the family of quadratic functions with zeros -1 -+ √5 and 2 -+ √2
B) determine
4 answers
asked by
Kim
1,709 views
Express the following in completed square form:
y = (2x)^2 + 14x - 11 Please show the work because I do not understand it.
4 answers
asked by
Kai
854 views
An archer shoots an row into the air such that it's height at any time, t, is given by the function h (t)= -16t^2+kt+3. If the
5 answers
asked by
Sarah
4,123 views
Find the vertex, focus and directrix of the parabola.
4x - y^2 - 2y - 33 = 0 y^2+2y+1 = -4x+33+1 (y+1)^2 = -4(x+8.5)
3 answers
asked by
Abbey
1,388 views
determine the value(s) of k which the equation x^2+kx+9=0 will have
a) two real roots b) 2 distinct roots I tried to find the
2 answers
asked by
fatima
620 views
The sum of the squares of three consecutive whole numbers is 77. Form a quadratic equation and hence solve it to determine the
4 answers
asked by
Alyssa
1,686 views
1-AND PRODUCTION sum of roots of the equation :X²-X-6=0
2-FOR what values of A the equation has no solution ax ² +3 x-7 = 0
4 answers
asked by
Anonymous
913 views
Find the quadratic function that has the indicated vertex and whose graph passes through the given point.
Vertex: (2,3) Point:
2 answers
asked by
Abbey
1,171 views
The graph of y=x^2-2x+1 is translated by the vector (2 3).The graph so obtained is reflected in the x-axis and finally it is
4 answers
asked by
Raj
1,852 views
A basketball is tossed from the top of a 3m wall. The path of the basketball is defined by the relation y=-x^2+2x+3 where x
4 answers
asked by
Sarah
2,767 views
Solve using the quadratic formula.
a) x^2 - 7x + 12 = 0 a = 1 b = -7 x = -b +/- the sr of b^2 - 4ac /2a 7 +/- the sr of -7^2 -
4 answers
asked by
Rebecca
1,568 views
The expression - 5t^2 + 40t predicts the height, in meters, of an object t seconds after a person launches it into the air.
4 answers
asked by
Hestoria
1,441 views
We're reviewing and I forgot how to do this.
Given y=x2-4+3 (x2 is x squared) a)write in standard from b)find vertex c)find
2 answers
asked by
Helen
524 views
Jenny wanted to solve the quadratic equation x2 - 11x +18 = 0 by factoring. Which of the following equations would lead her to
3 answers
asked by
cam
1,522 views
The quadratic formula is important in mathematics: it canbe used to solve any quadratic equation(Algebra for College Students,
1 answer
asked by
ITACHI IS NOT A VILLANN !!!!!!
123 views
A parabola passes through the point (3, 5) on its way to the vertex at (7, 11). Determine the equation in vertex form that
4 answers
asked by
T
2,013 views
determine the value(s) of k which a quadratic equation x^2+kx+9=0 will have.
a) two equal real roots b) 2 distinct roots I tried
2 answers
asked by
Anonymous
981 views
Solve using factorization method:
x2+7x+10=0
3 answers
asked by
Y.Abdulsalam
535 views
I am having trouble with these. I don't even know where to start:
Find the exact solutions to 6x^2+x+4=0 By using the Quadratic
2 answers
asked by
Kasey
1,176 views
Determine the equation of a quadratic function that satisfies each set of conditions.
a) x-intercepts 1 and -1, y-intercept 3 b)
3 answers
asked by
Julio
3,573 views
A cannon ball is shot out of a cannon buried 2m in the ground. The height of the cannonball can be approximated by the equation
4 answers
asked by
Math Man
1,855 views
Find the minimum or maximum value of f(x)=−0.25x2+4x−18
7 answers
asked by
Kasey
2,979 views
(please explain with brief explanation)
The area of a rectangular field is 2000 sq.m and its perimeter is 180m. Form a quadratic
2 answers
asked by
Nithin
635 views
Completing the square method allows you to solve any quadratic equation. For each of the following determine what number
2 answers
asked by
Christian
845 views
you are making a rectangular table. The area of the table should be 10 ft^2. You want the length of the table to be 1 ft shorter
4 answers
asked by
sarah
1,788 views
Okay this is what i have to do but i think i am doing something wrong.
directions are: Identify the axis of symmetry, create a
2 answers
asked by
jas20
883 views
My problem:
From 1992 to 1996, the annual income for all the private golf courses in the United States can be approximated by the
2 answers
asked by
Shannon
660 views
1. The roots of the quadratic equation z^2 + az + b = 0 are 2 - 3i and 2 + 3i. What is a+b?
2. Find all pairs of real numbers
3 answers
asked by
Nanami
2,035 views
I have a take home test and I'm stuck on a couple. Anyone help please?
1. Find the vertex & axis of symmetry: -5(x+4)^2-4 2. Find
4 answers
asked by
Krystle
896 views
I have no idea how to even start this, can someone kinda "point me in the right direction" so to speak.
-Compute the time(t) it
6 answers
asked by
Emma
479 views
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