All Questions

851

Rules of indices

(-2x)^-2 How is this broken down?

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Guest Oct 23, 2017

901

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

1201

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

1034

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 ●

Guest Oct 23, 2017

1151

+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

676

http://google.kr how to lievø

off-topic

Guest Oct 23, 2017

796

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

804

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

1087

+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

962

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

1055

There is no x and y right?

https://latex.artofproblemsolving.com/3/b/8/3b8a47d5963cfb295842f5c4709599ecd000cc0a.png

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Guest Oct 23, 2017

1397

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

1534

+471

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

2052

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

1380

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

1161

+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

952

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

1009

Help me please

Find all values for a

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Guest Oct 22, 2017

1558

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 ●●●

Guest Oct 22, 2017

504

help

how do i equivalent 2 fractions

Guest Oct 22, 2017

625

Help

Find (x,y)
https://latex.artofproblemsolving.com/9/2/6/9261658481dcc413b2af7373f400fe889f044303.png

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Guest Oct 22, 2017

575

simply annoying

can we get this thin to simplify equasions?

Guest Oct 22, 2017

1124

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 ●

Guest Oct 22, 2017

934

solving equations-variables on two sides

13+3x=13+2x
x=?

DimitrisThymaras ●

lightining1313 Oct 22, 2017

All Questions ⁺⁰237795 Questions

Rules of indices

gcse question i am stuck on !.!.!.!.!

geometry

How to find Ace

Geometrical applications of calculus

http://google.kr how to lievø

Can you help with this problem?

For properties of trig functions

Need Help

NEED HELP ASAP WITH BIO/MATH QUESTION!!

There is no x and y right?

My mind is blown

I need this solution by tomorrow morning. Help Please.

help please

need help

need help

How many kilograms of chalcopyrite must be mined to obtain 400. g of pure Cu?

Help me please

Help

help

Help

simply annoying

Пишет заварной крем

solving equations-variables on two sides

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