All Answers 358087 Answers

Give me an actual question and i will show you.  

$$\\(4+x)/2=2.83\\
4+x=5.66\\
x=1.66$$

$$2\times3\sqrt6=6\sqrt6$$

That looks good - I wish I had more time.  I'd love to play with more of these polynomial problems.

There is never enough time when you are having fun        

I did that too Alan but I am wondering how to get it by hand.

Given time I shall work it out unless someone else works it out and shows me beforehand.    

$$2x \quad -5/2+3+1\\
=2x \quad -2.5+4\\
=2x \quad +1.5\\
=2x+1.5$$

$$1x^3+5x^3=6x^3$$

The coefficient is 6

XXXXXXXXXXXXXXXXXXX

how many 5 person committees can be formed from a group of 6 woman and 4 men if there must be at least 3 men

3M,2W          4C3*6C2 = 4*15 = 60

4M,1W           4C4*6C1= 1*6    = 6

Total = 66 different committees are possible

I have seen this exact question answered before.

Maybe the search function will bring up the answer for you  

Good try sasflower but you have made a couple of little mistakes. I'll give you thumbs up for your good effort :)

$$\\-2|h-2|\ge2\\\\
$Divide both sides by -2 but remember that when you divide or multiply by a negative number you must turn the inequality around$\\\\
|h-2|\le1\\\\
-1\le h-2\le1\\\\
1\le h \le 3$$

The first sentence is clumsy and arguably wrong. Replace the word "overall" with "mostly" and you've nailed it! 

R=s+2t

s=3t 

SO

R=3t+2t

R=5t

$$\dfrac{w}{3w^2y}=\dfrac{1}{3wy}$$

V = area of the triangle x depth

$${\mathtt{4}}{\mathtt{\,\times\,}}{\mathtt{15}}{\mathtt{\,\small\textbf+\,}}{\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{9}} = {\mathtt{105}}$$ dollars

Your brackets do not make sense. 

More info needed.

How many of who didn't fail.

Girls? Sophomore girls? class members? 

Happy and Brittany,

Some countries use a comma instead of a point to indicate a decimal number.

The question asker is telling you that they are from one of these countries.    

So the numbers are

31.5,     5.4,     18.9,     18.89,     10.8,     9,     9.01,     15.3          The magic number is 60 (+and - only)

P grows at the rate of 2% per year, the equation, find the value of t for the population is 1500,000

$$\boxed{P(t)=1000000*(1.02)^t}$$

$$\small{\text{
$
\begin{array}{rcll}
1500000 &=& 1000000*(1.02)^t & \quad | \quad : 1000000\\ \\
1.5 &=& 1.02^t & \\ \\
1.02^t &=& 1.5 & \quad | \quad \ln{()}\\ \\
t*\ln{(1.02)} & = & \ln{(1.5)} \\ \\
t &=& \dfrac{ \ln{(1.5)} }{ \ln{(1.02)} } \\ \\
t &=& \dfrac{ 0.40546510811 } { 0.01980262730 } \\ \\
t &=& 20.4753188576 \\
\end{array}
$
}}$$

The value of t  for the population 1500000 is 20.4753188576 years.

This is a good answer Brittany  

The total energy is constant.  We have enough information at the top to work out what it is.  Everywhere else the total is the same, but the split between kinetic and potential energy is different. At point A we know the potential energy (mgr) so we can use the difference between the known total and the known potential to find the kinetic energy at A ((1/2)mu²).  Hence we can find the velocity (u) at A.  Hence we can find the centrifugal force (mu²/r) at A; this is the only force imposed by the car on the track at this point.

.

Suppose you have 1000 chickens; then 724 of them are small and 126 are large (I guess the rest are medium!).

Number of eggs per small chicken per year = 326/724

Number of eggs per large chicken per year = 123/126

Number of eggs per large chicken per year/Number of eggs per small chicken per year = (123/126)/(326/724)

$${\frac{\left({\frac{{\mathtt{123}}}{{\mathtt{126}}}}\right)}{\left({\frac{{\mathtt{326}}}{{\mathtt{724}}}}\right)}} = {\frac{{\mathtt{7\,421}}}{{\mathtt{3\,423}}}} = {\mathtt{2.167\: \!981\: \!302\: \!950\: \!628\: \!1}}$$

.