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Questions Answered

rayray12345:
Group Title
if g(x)=sqrt(x+1) and f(x)=(1/x^21) then how do you find the
domain of (f o g)(x)
 updated 11 months ago
 9 replies
 No Medals Yet
Mathematics

bruno102:
Group Title
Write the equation of the quadratic function with roots 0 and 1 and a vertex at (1/2, 2/3)
 updated 11 months ago
 31 replies
 No Medals Yet
Mathematics

mo7892:
Group Title
find d^2y/dx^2 as a function of x if sin y+cos y=x
 updated 11 months ago
 11 replies
 4 Medals
Mathematics

Sidhulucky:
Group Title
Integrate dx/sinx+secx
 updated 11 months ago
 11 replies
 1 Medal
Mathematics

AonZ:
Group Title
Given that the roots of the quadratic equation ax^2+bx+c=0 are real, explain by inspection of the coefficients how one can determine:
(a…
 updated 11 months ago
 22 replies
 1 Medal
Mathematics

ninab731:
Group Title
find all the points of the form (x,x) which are 1 unit from the origin
 updated 11 months ago
 15 replies
 No Medals Yet
Mathematics

Data_LG2:
Group Title
How will I know if the intersection of two planes is a line or a plane if there's an intersection between them??
 updated 11 months ago
 11 replies
 2 Medals
Mathematics

FriedRice14:
Group Title
3^(2x+2)=8
(Exponential and Logarithmic Help)
 updated 11 months ago
 8 replies
 No Medals Yet
Mathematics

trenical:
Group Title
The volume of a cone is three hundred cubic kilometers. If the radius of the base is 7 kilometers, what is the height of the cone? Use three…
 updated 11 months ago
 7 replies
 No Medals Yet
Mathematics

haileybug:
Group Title
find the discriminant of x^2+4x=5
 updated 11 months ago
 2 replies
 No Medals Yet
Mathematics

msingh:
Group Title
PLSE CHECK IF I HAVE DONE OR WRONG
 updated 11 months ago
 12 replies
 1 Medal
Mathematics

iiamentertainment:
Group Title
Graph the function defined by f(x) = x  9
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

JA1:
Group Title
Which of the following represents in simplified form?
 updated 11 months ago
 7 replies
 3 Medals
Mathematics

Loser66:
Group Title
Can someone check my solution, please
…
 updated 11 months ago
 18 replies
 No Medals Yet
Mathematics

taylormathseries:
Group Title
estimate the follwoing question by using a power series expansion of sin x with five nonzero terms.
 updated 11 months ago
 7 replies
 1 Medal
Mathematics

goformit100:
Group Title
A matrix has 6 elements. Write the possible orders of a Matrix.
 updated 11 months ago
 12 replies
 1 Medal
Mathematics

chengyen:
Group Title
2 tan^2xtan^4x=3
 updated 11 months ago
 36 replies
 3 Medals
Mathematics

tanjeetsarkar96:
Group Title
HLP pls... !!
 updated 11 months ago
 10 replies
 No Medals Yet
Mathematics

cheche:
Group Title
Integral Calculus ;)
The area bounded by the parabola x^22x+y=3 and y axis and the line y=4 revolves about the line y=4. find the volume…
 updated 11 months ago
 9 replies
 No Medals Yet
Mathematics

hothand621:
Group Title
Help with polynomials please
 updated 11 months ago
 9 replies
 No Medals Yet
Mathematics

Zizik:
Group Title
v(x,y)=(y^2cos(xy^2)+ye^x, 2xycos(xy^2)+e^x)
Find a function f such that v=grad f
 updated 11 months ago
 8 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
Solve the heat equation
\[\alpha^2\frac{\partial^2u}{\partial x^2}=\frac{\partial u}{\partial t}\], 0<x<L, t>0
subject to the conditions…
 updated 11 months ago
 54 replies
 3 Medals
Mathematics

blueocean18:
Group Title
how many solutions does the equation sin(4x) = 1/2 have on the interval (0,2pi)
 updated 11 months ago
 6 replies
 1 Medal
Mathematics

SuperStef:
Group Title
Medal for the Answer! Quadratic equations.
1.Solve by using the perfect squares method.
…
 updated 11 months ago
 45 replies
 5 Medals
Mathematics

Sunshine447:
Group Title
I'm doing an Algebra II assignment and I have some questions I don't understand... Someone please help! :D
 updated 11 months ago
 7 replies
 1 Medal
Mathematics

ibromax4life:
Group Title
solve the triangle A= 45, a= 31, b=27
 updated 11 months ago
 8 replies
 1 Medal
Mathematics

ozhobbits:
Group Title
permutations question
 updated 11 months ago
 27 replies
 No Medals Yet
Mathematics

DLS:
Group Title
Find the number of points of discontinuities of:
y=[2+5sinx] in [0,2pi]
 updated 11 months ago
 53 replies
 2 Medals
Mathematics

iiamentertainment:
Group Title
determine the domain of the function h(x) = 8x/x(x^2  81)
 updated 11 months ago
 3 replies
 1 Medal
Mathematics

chrisnwamah:
Group Title
Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false.
(4 points each.)
…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics
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