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Questions Answered

nickersia:
Group Title
Use De Moivre's Theorem to prove the identity:
 updated 2 months ago
 3 replies
 No Medals Yet
Mathematics

nickersia:
Group Title
Show that kb^2=(k+1)^2*ac
 updated 2 months ago
 40 replies
 2 Medals
Mathematics

nickersia:
Group Title
Tangent at the point of inflection question.
 updated 4 months ago
 23 replies
 1 Medal
Mathematics

nickersia:
Group Title
Tap A can fill a cylindrical container in 3 minutes. Tap B can fill the same container in 15 minutes. How long would it take the two taps to…
 updated 4 months ago
 1 reply
 No Medals Yet
Mathematics

nickersia:
Group Title
A bag contains 8 blue marbles, 4 red marbles and x white marbles. A marble is drawn at random and not replaced. A second marble is drawn at …
 updated 4 months ago
 19 replies
 1 Medal
Mathematics

twopack98:
Group Title
The moon forms a right triangle with the Earth and the sun during one of its phases, as shown below.
A scientist measures the angle x and…
 updated 4 months ago
 8 replies
 1 Medal
Mathematics

ElisaNeedsHelp:
Group Title
For what acute angle θ is cos θ=sqrt3/2
 updated 4 months ago
 4 replies
 2 Medals
Mathematics

neluthenoodle:
Group Title
http://media.education2020.com/evresources/31080107/mc0011.jpg
What is the rate change of the function?
 updated 4 months ago
 2 replies
 1 Medal
Mathematics

neluthenoodle:
Group Title
http://media.education2020.com/evresources/31080107/mc0041.jpg
The rate of change between point A and point B is 2.What is the rate of …
 updated 4 months ago
 1 reply
 1 Medal
Mathematics

nickersia:
Group Title
Is this correct? (I give medals)
*Image in comments
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

nickersia:
Group Title
Medal to first who explains me this question :)
Find the roots of the equation (comment).
 updated one year ago
 11 replies
 1 Medal
Mathematics

Shames:
Group Title
can anyone help me with this simple geometry!? (I forgot how to do this cuz i did it a long time ago)
 updated one year ago
 20 replies
 2 Medals
Mathematics

hrops:
Group Title
help please?
The sum of two numbers is 36. Twice the first number minus the second is 6. Find the numbers.…
 updated one year ago
 6 replies
 2 Medals
Mathematics

heather040200:
Group Title
Help! I give medals:) Pic below
Solve for x in the right triangular prism.Show work
 updated one year ago
 8 replies
 1 Medal
Mathematics

King.Liang:
Group Title
If L = 6 inches, W = 7 inches, and H = 2 inches, what is the surface area of the rectangular prism?
…
 updated one year ago
 4 replies
 2 Medals
Mathematics

marcybaby:
Group Title
multiply and simplify the expression.
(11z)z
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

heather040200:
Group Title
Help! I give medals:) Pic below
find the height and surface area of the right circular cylinder with the height equal to the diameter. Show…
 updated one year ago
 7 replies
 1 Medal
Mathematics

Acaciaa:
Group Title
Stay weird ;)
…
 updated one year ago
 22 replies
 2 Medals
Mathematics

msumner:
Group Title
this figure has rotational symmetry?
 updated one year ago
 2 replies
 1 Medal
Mathematics

msumner:
Group Title
a figure cannot have both line symmetry and rotational symmetry?
true or false?
 updated one year ago
 4 replies
 1 Medal
Mathematics

freakszdoesit:
Group Title
find the m GF
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

supermanhelp:
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Can some one help me with this question?
…
 updated one year ago
 7 replies
 1 Medal
Mathematics

heather040200:
Group Title
Help! I give medal:) Pic below
Find the surface area and volume of the triangular prism formed by the net Show work
 updated one year ago
 10 replies
 1 Medal
Mathematics

nickersia:
Group Title
John drives to work and passes three sets of traffic lights. The probability that he has to stop at the first is 0.6, second 0.7, third 0.8.…
 updated one year ago
 3 replies
 1 Medal
Mathematics

locitalovesu:
Group Title
Please help!!
The vertices of a triangle are A(16, 0), B(9, 2), and C(0, 0).
…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

nickersia:
Group Title
A large supermarket chain commissioned a survey to find out whether people favoured extended opening hours at the weekend. Four hundred peop…
 updated one year ago
 3 replies
 1 Medal
Mathematics

Forever_Me:
Group Title
What is the yintercept of the function y = 9x?
A. x
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

nickersia:
Group Title
A random variable X follows a normal distribution with mean 20. (standard deviation 5)
Find probability 14=<X=<26
 updated one year ago
 9 replies
 1 Medal
Mathematics

nickersia:
Group Title
sinA=(sprt(3)/2), find two values for cosA without using calculator (x is from 0 do 360 degrees)
 updated one year ago
 23 replies
 2 Medals
Mathematics

Baldwin777:
Group Title
f(x)=3x+4
 updated one year ago
 7 replies
 No Medals Yet
Mathematics
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