Ted.knows.it
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Questions Answered

InstagramDoll:
Help please, I'll provide a picture.
 updated 9 months ago
 8 replies
 2 Medals
Mathematics

noname81:
How do I solve this using difference of squares.
I understand (a+b)(ab)
16(x^2+1)^24(2x)^2
 updated 9 months ago
 4 replies
 1 Medal
Mathematics

Seandawkins022:
Solve
(1/n2) + (1/n) = (1/2n2)
 updated 9 months ago
 1 reply
 No Medals Yet
Mathematics

Ted.knows.it:
Solve the double inequation:
 updated 11 months ago
 2 replies
 No Medals Yet
Mathematics

Ted.knows.it:
(image attached) Let P be a point inside the equilateral triangle which has the center in the point O. P_1, P_2 and P_3 are the projections …
 updated one year ago
 17 replies
 1 Medal
Mathematics

Ted.knows.it:
Prove the following inequality:
 updated one year ago
 15 replies
 3 Medals
Mathematics

dellmania:
I have the polynomial f=1+x2x^2+x^3 from C[x] with the roots z1,z2,z3.
I need to form the polynomial with the roots: y1=1z1, y2=1z2 and…
 updated one year ago
 1 reply
 1 Medal
Mathematics

melbel:
Need help figuring out how to solve this derivative:
 updated one year ago
 11 replies
 1 Medal
Mathematics

AonZ:
Can someone pls draw this?
From a point P a man observes that the angle of elevation of the top of a cliff A is 40 degrees. After walking 1…
 updated one year ago
 7 replies
 2 Medals
Mathematics

MATTW20:
Find the average value of the function on the given interval
f(x)=cos x; interval \[[\frac{ \pi }{ 2 },\frac{ \pi }{2 }]\]
 updated one year ago
 6 replies
 2 Medals
Mathematics

TristaJC:
2. Arianna kicks a soccer ball off the ground and into the air with an initial velocity of 42 feet per second. Assume the starting height …
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

Twig02:
square root of 17
 updated one year ago
 10 replies
 3 Medals
Mathematics

gio1983:
graph the equation using the point and slope y+7=1/2(x5)
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

vivianrush:
The lateral area of a cone is 500mc0121.jpg cm2. The radius is 50 cm. Find the slant height to the nearest tenth.
10 cm
…
 updated one year ago
 2 replies
 2 Medals
Mathematics

onegirl:
Show that the derivative of f(x) = 3x – 5 is f’(x) = 3. Explain in terms of slope why this is true.
 updated one year ago
 15 replies
 1 Medal
Mathematics

Tainted:
Medals will be given
please help with the 4 problems attached
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Broganleab:
What is the measure of angle A in the triangle below?
 updated one year ago
 8 replies
 1 Medal
Mathematics

Ted.knows.it:
If 1/x > 2 and 1/y > 3, prove that 2x + y > 8xy. x,y  belong to R*.
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Ted.knows.it:
I have the following integral:
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

Isabel.A:
How do you find the two other points on the quadratic function.
y = x^2 + 2x – 3
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

mickey10899:
I will post the image.
 updated one year ago
 3 replies
 1 Medal
Mathematics

Ted.knows.it:
Let it be the matrix A, with the property:
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

ihavemathquestions:
Use a matrix to find the solution to the system of equations.
 updated one year ago
 5 replies
 1 Medal
Mathematics

Ted.knows.it:
Prove the following inequality: equation attached.
 updated one year ago
 23 replies
 2 Medals
Mathematics

vivianrush:
Geometry help please
 updated one year ago
 5 replies
 1 Medal
Mathematics

AllyLovesGym:
PICTURE INCLUDED
Find the slope of the line.
…
 updated one year ago
 14 replies
 1 Medal
Mathematics

Emah:
I don't know how I would get this answer.
 updated one year ago
 16 replies
 1 Medal
Mathematics

tre2kool123:
Let f(x) = 3x +2 and g(x) = 7x + 6. Find f • g and its domain.
 updated one year ago
 2 replies
 1 Medal
Mathematics

Ted.knows.it:
How should I find this determinant? Image attached.
 updated one year ago
 22 replies
 2 Medals
Mathematics

ChinaGurl:
HELP! Factor a number, variable, or expression out of the polynomial shown below.
x(3x + 5)  4(3x + 5)
…
 updated one year ago
 3 replies
 1 Medal
Mathematics
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