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Quadratic Equations
Page 2
Questions (6,503)
Factor:
81a^2+5b^2
5 answers
asked by
help
1,373 views
The function f is defined by f(x)=2x^2-6x+5
Find the set of values of p for which the equation f(x)=p has no real roots. Thanks
5 answers
asked by
Audrey
5,435 views
31. Solve the equation by completing the square. Round to the nearest hundredth if necessary.
x2 – 6x = –8
5 answers
asked by
Tina
2,479 views
If ab = 8 and a^2+b^2=16, then what is the value of (a+b)^2?
10 answers
asked by
Nathan
2,128 views
The height, h(t), of a baseball, in metres, at time t seconds after it is tossed out of a window is modelled by the function
4 answers
asked by
Dong
1,333 views
If zeros of p(x)=2x2-7x+k are reciprocals of each other,then find the value of me
4 answers
asked by
Anonymous
5,429 views
What is the standard form of 4x²+4y²-20x+12y-2=0
7 answers
asked by
rhea
5,510 views
Determine the equation of the quadraticcc function
f(x)=ax^2-6x-7 if f(2)=3
5 answers
asked by
Kestrel
5,308 views
Determine the equation of the parabola with roots 2+sqrt(3) and 2-sqrt(3), and passing through the point (2,5).
7 answers
asked by
Emily
6,072 views
The vertex of a parabola is(-2,-4). One x-intercept is 7. What is the other x-intercept?
4 answers
asked by
becca
2,181 views
A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax^2 about the
3 answers
asked by
Sam
1,504 views
How many real number solutions does the equation have?
0 equals 5 x squared plus 2 x minus 12 (1 point) Responses one solution
1 answer
asked by
u dont know me
48 views
w^2 + 16w + 64
1 answer
asked anonymously
40 views
14)
During a soccer game, a goalie kicks a ball upward from the ground. The equation h(t)=−16t2+42t represents the height of
1 answer
asked anonymously
41 views
What are the coordinates of the vertex of this graph? Is it a maximum or a minimum?
(1 point) Responses (0,3), Max (0,3), Max
1 answer
asked anonymously
45 views
Suppose you are a solving a quadratic equation using the quadratic formula and this is your work so far: 2x ^ 2 + 7x - 15 = 0; x
3 answers
asked anonymously
25 views
Which of the following scenarios would use a quadratic equation to solve?(1 point) Responses A child places a quarter into a
1 answer
asked anonymously
30 views
Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.
x2 – 6 = x(1 point) Responses x
1 answer
asked anonymously
22 views
31. Solve the equation by completing the square. Round to the nearest hundreth if necessary.
x^2 - 6x = 7 x = 7, 1 x = -7, 1 x =
6 answers
asked by
This Girl
1,078 views
If (x+y)^2=168 and xy =4, then x^2 + y^2=?
4 answers
asked by
Scraffii
1,097 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
1,588 views
which of the following tables of values is correct for the equation y=-3x^2.
A. X Y (X,Y) -2 12 (-2,12) -1 3 (-1,3) 0 0 ( 0,0) 1
68 answers
asked by
nebula🌌
19,580 views
For what values of k does the function f(x)=(k+1)x^2+2kx+k-1 have no zeros? One zero? Two zeros?
7 answers
asked by
Emily
3,770 views
Prove that the roots of the equation kx^2+(2k+4)x+8=0 are real for all values of k.
5 answers
asked by
Euler
1,642 views
form the quadratic equations whose roots are(A:5 and -1/3
5 answers
asked by
pressly.
901 views
Solve 2x^2-12+4=0 by completing the square, expressing the result in simplest radical form.
4 answers
asked by
William
2,065 views
x2-x-1806=0 by completing the square
5 answers
asked by
saad
2,262 views
A ball is thrown from an initial height of 1 meter with an initial upward velocity of 9 m/s. The ball's height h (in meters)
4 answers
asked by
Lucie
3,834 views
Find the number of units that produces maximum revenue given by
R = 900x-0.1x^2, where R is the total revenue in dollars and x is
5 answers
asked by
Amy
5,088 views
Solve the equation by completing the square.
x^2-12x+35=0
4 answers
asked by
RSM HELP PLS
729 views
For the period 1990-2002, the number s (in thousands)lf cellular telephone subscribers in the United States can be modified by
5 answers
asked by
Krystal
2,794 views
find a and b so that f(x)=x^2+ax+b has a local min at (6,-5)
i found the derivative: f'=2x+a then i found a 0=2x+a 0=2(6)+a
4 answers
asked by
kate
1,543 views
During a softball game, a batter hits a ball upward from an initial height of 3 feet. The height, in feet, of the softball is
7 answers
asked by
Samantha
6,881 views
Determine the discriminant for the quadratic equation -3 = x^2 + 4x + 1. Based on the discriminant value, how many real number
4 answers
asked by
Lydia
4,502 views
The number of vinyl album sales (in millions) in a country x years after 2010 can be modeled by y=0.12x2+0.3x+3.3 for 2010
4 answers
asked by
anonymous person
2,351 views
Write in standard form:
-2y^2+x-4y+1=0
7 answers
asked by
Tom
1,006 views
The quadratic equation x2 −2kx+(k−1) = 0 has roots a and b such that a2 +b2 = 4. Without solving the equation, find the
4 answers
asked by
Marie
565 views
A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other.
4 answers
asked by
Steve
2,124 views
Help appreciated~
1.Use the quadratic formula to determine when f(x)= x^2 +7x + 7 is greater than 0. Round your answer to two
4 answers
asked by
Jayson
758 views
The height in feet of a rocket after t seconds is given by h(t) = 160t - 16t2.
Find the maximum height the rocket attains: After
4 answers
asked by
lisa
3,621 views
X^2+16x+64 is the area of a square,find the length of each side of the square.
4 answers
asked by
Kirandeep
1,102 views
The roots of
x^2 + 5x + 3 = 0 are p and q, and the roots of x^2 + bx + c = 0 are p^2 and q^2. Find b + c.
5 answers
asked by
Praveen
956 views
Calculate the coordinates of the turning point on the curve y = x^2 + 4x.
4 answers
asked by
Christopher
1,842 views
Use square method to solve this quadratic equation X^2+8X-7=0
5 answers
asked by
Moses
366 views
A football is punted. Its height, H metres is given by the quadratic relation with equation: H = -5t2 + 21t, where t is the time
4 answers
asked by
Fred
1,230 views
The cost C(in dollars) of producing x widgets is represented by c=4.5x squared how many widgets are produced if the cost is
4 answers
asked by
Cammie
695 views
The UV index on a sunny day can be modeled by the function f(x)=-0.15(x-13)^2+7.6 where x represents the time of day on a 24-h
3 answers
asked by
Alex
2,617 views
the graph of the function
f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k
3 answers
asked by
Ariel
847 views
The predicted revenue trend for a popcorn stand at a fair, as the price of a container of popcorn changes is shown in the table.
3 answers
asked by
Alparslan
149 views
2x^2-6x-36=0 Solve by completing the square
4 answers
asked by
Merty
1,234 views
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