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Quadratic Equations
Page 9
Questions (6,400)
Introduction to quadratic equations?
If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0
4 answers
asked by
Chelsea:)
2,069 views
Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic
4 answers
asked by
Sandy
1,582 views
Suppose you are tossing an apple up to your friend on a third-story balcony. After x seconds the height of the apple is given by
3 answers
asked by
Francella
1,783 views
The curve with equation y = ax^2 + bx + c passes through the points P(2,6) abd Q(3,16), and has a gradient of 7 at the point P.
3 answers
asked by
Anonymous
1,913 views
What are the solutions of the quadratic equation?
2x2 – 16x + 32 = 0
6 answers
asked by
kendra
8,635 views
Show all work
The manufacturer of a CD player has found that the revenue R (in dollars) is R(p)= -4p^2+1280p, when the unit price
3 answers
asked by
Anonymous
1,863 views
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function
4 answers
asked by
Ben
759 views
The profit p(x) of a cosmetics company , in thousands of dollars . is given by p(x) =-5t^2=400x-2550, where x is the amount
4 answers
asked by
Erin
1,575 views
i am really trying is this correct.
solve: 5(x-2)^2 = 3 MY ANSWER THAT I GOT IS: X = 2 +- (SQRT (3) )/(5) no. 5(x-2)^2 = 3
1 answer
asked by
jasmine20
1,161 views
Let $3x^2 + 4x + c = 0.$ What value of $c$ will give us exactly one solution for $x$?
4 answers
asked by
Steve
1,523 views
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
4,068 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
9,224 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
958 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
10,149 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
2,559 views
Factor:
81a^2+5b^2
5 answers
asked by
help
1,366 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
3,404 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
646 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
11,237 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
951 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
2,047 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
205 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
2,668 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
:)
921 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
912 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
1,329 views
Write equation of parabolla with vertex ( 4,3 ) passes through ( 5,2 ) vertical axis
6 answers
asked by
muudee
2,132 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
1,412 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
652 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
1,706 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
847 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
4,121 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
1,382 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
617 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
1,684 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
911 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
1,168 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
1,849 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
2,765 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
1,566 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
521 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
1,519 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 !!!!!!
121 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
2,011 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
978 views
Solve using factorization method:
x2+7x+10=0
3 answers
asked by
Y.Abdulsalam
532 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
1,173 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
3,568 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
1,853 views
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