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Don't ask the same question twice.

So you need to pick 2 numbers since that is your sample size. On your first pick, you can select 1, 3 or 5. Then on your second pick you can still select 1, 3 or 5 since it says 'with replacement'....

Precision is defined as: The ability of a measurement to be consistently reproduced.

Example: I can throw a dart at the dartboard and hit a triple 20 every time even though I'm trying to hit the...

Well to start with, think about how many cookies you could get if you had only 1000 cups of flour and an infinite amount of every other supply. That would mean you could make 1000/2.25 batches of...

Try multiplying the entire second equation by -3 and then add the two equations together. You'll notice that you've "eliminated" the 'x' terms.

You have the null hypothesis and the maximum allowable error mixed up in the top section.

Try drawing the line on a graph first.

You'll notice that it's a straight horizontal line.

Since slope is rise over run and there is no rise the slope is zero.

I guess the due date for the homework has passed so it's no use for PAK anymore...

I appreciate your work galactus.

So there's 8 years of increase. You start with 14,968,000 and end with 66,290,000.

The compounded increase per year would be:

14,968,000 * (1 + rate increase per year)^8 = 66,290,000

Then...

Elimination:

Multiply the entire second equation by -1 to get: 10x + 2y = -8

Now add equation one and the new equation two together to get:
13x = -6 -> x = -6/13
Throw x back into one of the...

Substitution:

Rearrange first equation: 3x - 2 = 2y
Then substitute into second equation: -10x - (3x - 2) = 8
Then group like terms and solve: -13x = 6 -> x = -6/13
Throw x back into one of the...

So much for not spoon feeding the answer to him...

If you know how to do one then you should know how to do the other.
Here's what you would do for the first one:

let x be the length of the rectangle.
let y be the width of the rectangle.

So...

The sample data are identical in sample number 5 since there is no range.

Junk food?

Cook it on a lower temperature and don't cook it for too long!

Now that you've fixed part 3 and you have the solutions to the other questions, you should be able to solve part 3 on your own... considering this is your take home final.

I thought so.

Here's how to solve:

You have to discount all future cashflows back to the present value.

So PV of the $2 dividend at the end of the first year is 2/(1+11%).
PV of the $2.20 dividend at the...

I agree with the horizontal component.

The vertical component would be 140sin(35).

y = -x^2 + 8x - 12
-y = x^2 - 8x + 12
-y = (x^2 - 8x +16) + 12 - 16
-y = (x-4)^2 - 4
y = -(x-4)^2 + 4

For the question about the class picture:

First think about how just the girls can be arranged. You should be able to write all the different possibilities. You'll find that there are 4! Ways of...

The second is extremely simple if you understand the answer to the lottery question you asked. You have 10 people from which you can selecct and you must select 3 members. 10 choose 3.

Have you attempted these questions on your own first?
You won't learn much unless you've thought about these before asking us.

So essentially what you have is this:
x=3 -> y=-2
x=2 -> y=-1
x=1 -> y=0
x=0 -> y=1
x=-1 -> y=2
x=-2 -> y=3
but then when you get to x=-3 you notice a change:
x=-3 -> y=2
x=-4 -> y=1

Grand prize: 1 / 40 choose 6 for one set of six numbers so 2*(1 / 40 choose 6) since you get to select two sets of six numbers with one entry.


No winning Numbers: 34 choose 6/ 40 choose 6 for...

Plot the points on a graph.
x=3 -> y=-2
x=2 -> y=-1
x=1 -> y=0
x=0 -> y=1
x=-1 -> y=2
x=-2 -> y=3
x=-3 -> y=4

You'll notice that you have a straight line!

Al2S3 + 6H2O = 2AL(OH)3 + 3H2S

Actually this is a case for conditional probability.

Here's how you solve conditional probabilities:
P(A) = P(A|B)xP(B)

P(getting ace from 50 cards) = P(getting ace from 50 cards|4 aces...

You have a v in the denominator so start by multiplying everything through by (v+2). Then expand and group all the like terms. Then use the quadratic formula to solve for the values of v!

To determine whether it's unusual, look at how many people have it vs. how many people you would expect to have it.

For A: 5 people actually have that blood type
You'd expect 45 x 6% of people to...

For what type of shape?

x = (y+1)^2 + 3

Think about why your ears pop sometimes!

Your ellipse looks perfect. The next step might be to graph it.

Your hyperbola has a mistake in it. Going from line 1 to line 2 you forgot to change -54x to +54x since you factored out the...

Well, the standard form for the equation of a circle is x^2 + y^2 = r^2 where the centre of the circle is (0,0) so putting your equation into this format would give you the answer to both your...

There is a homework section for homework help. Key word being 'help'.

The point is for you to learn, not to copy some answer you get off the internet.

y=4x-3

If a lottery ticket gives 1:99 odds, what is the probability of drawing two winning tickets

Well the probability of drawing one winning ticket is 1/100 so the probability of drawing two would be...

8+1+3=14
1+3+8=14
3+8+1=14

8+(1+3)=14
(8+1)+3=14
1+(3+8)=14
(1+3)+8=14
3+(8+1)=14
(3+8)+1=14

I believe there are many possible solutions to this.

One possible solution would be f(x) = x + 13 * (100-x)/38 although lower orignal scores like 20% change more drasticaly than higher original...

Actually, if you take a piece of paper and double the length and height of the paper, you get a sheet of paper that is 4 times the size. This would mean that the full pack weighs 40 lbs.

Well if he sold 4/5 of them, he has to have 1/5 left right...

So what's 1/5 x 225

What's four-fifths of the 45 gallons that you have?

Let's look at just the ways of selecting 3 jacks...

Jack of Hearts, Jack of Spades, Jack of Diamonds
Jack of Hearts, Jack of Spades, Jack of Clubs
Jack of Hearts, Jack of Diamonds, Jack of...

Nice!

Binomial Distribution -- from Wolfram MathWorld

That would be my guess at the second one.

2K + 2H2O -> 2kOH + H2

Please note that we don't do homework for you on this site.

Haven't done this in a while but I think the first one is:
N2 + 3H2 -> 2NH3

Second one is probably:
2KClO3 -> 2KCl + 3O2

Third is probably:
2NaCl + 2F -> 2NaF + Cl2

Fourth is probably: