Elephant200

Continuing with Melody's excellent hint, if you need help solving it, here it is:

$\begin{align*} x^2+8x-884&=0\\ x&=\dfrac{-8\pm\sqrt{64+3536}}{2}\\ x&=\dfrac{-8\pm\sqrt{3600}}{2}\\ x&=\dfrac{-8\pm60}{2}\\ x&=-4\pm30\\ x&=-34, 26 \end{align*}$

Obviously, the answer cannot be -34 (imagine -34 rows). So the answer is 26.

The number of tosses was at least... what?

Please proofread your questions.

I'm going to assume that you tossed a coin 12 times. Then there are $2^{12}$ different sequences of tosses. However, if you did intend to have something after "was at least," please edit your question to include this.

There have been many duplicate threads with the same problem on it. Please check to see if your question has already been answered before posting a new thread.

That would be x3-2x2+12x-6-4x2+6x-4=x3-6x2+6x-2

The answer is x³-6x²+6x-2

Please share your diagram with us.

That's a linear function, because there's no xⁿ term. All linear functions have domain and range of all real numbers.

This seems more like a troll than a genuine question. If some class gave that problem to you, that's just busywork. 

However, the answer to the question is $\dfrac{4242\cdot29342934}{134134}\approx927973$. You're welcome for doing that computation for you.

@Guythatneedshelp, please proofread your questions, as I don't know where the center is nor what point it passes through.

If I did, I could use the distance formula between the center and the point it passes through and then plug that into r.

The center would be (h, k)

(c)

The sum of n natural numbers is $\dfrac{n(n-1)}{2}$, so we have $\dfrac{99(100)}{2}=4950$

(b)

He didn't write down a 0. Using $\text{Probability}=\dfrac{\text{number of successful outcomes}}{\text{total possible outcomes}}$, the probability is 0.

(a)

Let's look at a simplified version: 1, 2, 3, 4. How many numbers are in that?

Obviously 4. That's the last number in the sequence. 

Therefore, using the same logic, Sam wrote down 99 digits.

The number of heads was at least what?

The answer is 3 because (4x-7y)³ contains the term -336x²y

What 4x4 grid are you talking about? Please proofread your questions so we can answer them.

Please attach a graph so we can see what you're talking about.

The answer to this is 0, because 12 < 564. However, I assume you meant something other than a 564-gallon glass. That's an enourmous glass.

Not sure what question you're asking. Please proofread your questions so we know what to answer.