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Post New Question
All Questions
+0
230864 Questions
0
751
2
Rules of indices
(-2x)^-2 How is this broken down?
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Guest
Oct 23, 2017
0
808
1
gcse question i am stuck on !.!.!.!.!
A ladder 6·8m long is leaning against a wall. The foot of the ladder is 1·5m from the wall. Calculate the distance the ladder reaches up the wall. Give your answer to a sensible degree of accuracy.
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Guest
Oct 23, 2017
0
1107
1
geometry
Write an equation in slope-intercept form for a line which passes through (0,8), parallel to y =4x+7
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Guest
Oct 23, 2017
0
956
1
How to find Ace
How do I find the odds of drawing at least 1 Ace from 3 random picks of a deck of cards? I know this is short but I am really struggling with it. I have created a tree diagram like thing but once I multiply it all out it gives me the fraction 338/3849.
read more ..
Alan
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Guest
Oct 23, 2017
0
1053
1
+71
Geometrical applications of calculus
Thank you!!!
Find the exact value of f''(2) if, f(x) = x
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Ashreeta
Oct 23, 2017
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597
0
http://google.kr how to lievø
http://google.kr how to lievø
off-topic
Guest
Oct 23, 2017
0
695
1
Can you help with this problem?
Find product in lowest terms 5x/-5x^2y * 4/-xy * y^2/2y
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Guest
Oct 23, 2017
0
711
1
For properties of trig functions
https://puu.sh/y4Ose/987fce7804.png
Could anyone explain how I go about solving this? Thank you!
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Guest
Oct 23, 2017
+1
991
2
+201
Need Help
I have this one problem i need help with.
3 0.24 0.18 0.6 0.3 0.2 - Answer is 20
read more ..
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mathcalc
Oct 23, 2017
0
862
7
NEED HELP ASAP WITH BIO/MATH QUESTION!!
If I have 56 nuclotide bases and each DNA model can contain 4 different bases, how many different combinations of DNA models can I have?
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Guest
Oct 23, 2017
0
959
2
There is no x and y right?
https://latex.artofproblemsolving.com/3/b/8/3b8a47d5963cfb295842f5c4709599ecd000cc0a.png
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Guest
Oct 23, 2017
+1
1311
2
My mind is blown
For what value of the constant $c$ does the system \begin{align*} 3x + 4y &= 7,\\ 6x + 4y &= c- 4y, \end{align*}have infinitely many solutions?
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Guest
Oct 23, 2017
Oct 22, 2017
+1
1437
8
+470
I need this solution by tomorrow morning. Help Please.
I have 3 pieces of candy to place in 4 lunch boxes. In how many ways can I do this if:
(a) The candies are all different and the lunch boxes are all different?
(b) The candies are all the same and the lunch boxes are all the same?
(c) The candies
read more ..
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Mr.Owl
Oct 22, 2017
0
1997
1
help please
If the system of equations \begin{align*} 6x-4y&=a,\\ 6y-9x &=b. \end{align*}has a solution $(x, y)$ where $x$ and $y$ are both nonzero, find $\frac{a}{b},$ assuming $b$ is nonzero.
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Guest
Oct 22, 2017
0
1280
1
need help
What are the coordinates of the point on the line $3x + 8y = 60$ such that the $x$-coordinate is $\frac23$ of the $y$-coordinate? Express your answer as an ordered pair.
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Guest
Oct 22, 2017
0
1059
4
+201
need help
I have these four problem i need help with.
0.4 2/5 0.625 1/8 1/10 - Answer is 5
0.7 0.9 1/10 0.3 10
read more ..
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mathcalc
Oct 22, 2017
0
860
0
How many kilograms of chalcopyrite must be mined to obtain 400. g of pure Cu?
The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to obtain 400. g of pure Cu?
Guest
Oct 22, 2017
0
905
1
Help me please
Find all values for a
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Guest
Oct 22, 2017
0
1478
3
Help
A fitness center charges a membership fee plus a fixed amount per day for each day the center is used. If Claire paid 105 for 30 days of use, and Adrian paid 123 for 39 days of use, how many dollars is the membership fee?
hectictar
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Guest
Oct 22, 2017
0
423
0
help
how do i equivalent 2 fractions
Guest
Oct 22, 2017
0
528
1
Help
Find (x,y)
https://latex.artofproblemsolving.com/9/2/6/9261658481dcc413b2af7373f400fe889f044303.png
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Guest
Oct 22, 2017
0
492
0
simply annoying
can we get this thin to simplify equasions?
Guest
Oct 22, 2017
0
1021
1
Пишет заварной крем
Привет помогите пожалуйста, ввожу такое выражение tg(sin(1)/sin(2))+2^ctg(cos(2))-1/(2*3)+3, пишет ошибка, что делать. заранее спасибо.
off-topic
asinus
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Guest
Oct 22, 2017
0
836
1
+4
solving equations-variables on two sides
13+3x=13+2x
x=?
DimitrisThymaras
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lightining1313
Oct 22, 2017
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