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I the cotangent = 0/2,   ......x = 0  and y = 2, therefore, we're at 90 degrees

You can verify this by taking the cotangent inverse of (0/2)

The cot function is the ratio of the adjacent side over the opposite side. The cot is the inverse of the tan function.

the value of 0/2, only occurs at pi/2.

21 cx is your answer

2015 - Your date of birth :-p

I'm assuming that 20 inches represents the diameter, so 10 inches is the radius

15.5 miles in one hour = 15.5 x 5280 ft  = 81840 ft / 60min = 1364 ft/min

And the bike travels [2 * pi * 10] inches =  (20 * pi) inches  = 62.83 inches in every revolution  = about 5.236 ft in every revolution

So.........1364/5.236 = about 260.5 revolutions per minite = 261 revs (rounded)

at what rate would you have to pedal a 20 inch bike so that it traveled at a linear speed of 15.5 miles per hour? express your answer in revolutions per minute rounded to the nearest whole number. (Hint: first change miles per hour into inches per minute)

 x^2 - 10x+8=0     subtract 8 from both sides

x^2 - 10x  = -8      take 1/2 the coefficient on x ,  (-10),  square it and add it to both sides

So (1/2)* (-10 ) =- 5     and  (-5)^2  = 25

x^2 - -10x + 25  = -8 + 25       simplify the right and factor the left side

(x  -  5)^2  = 17       take the square root of both sides

x - 5  =  ±√17         add 5 to both sides

x = 5 ±√17

And those are the two solutions....

$${\frac{{\mathtt{23}}}{{\mathtt{100}}}}{\mathtt{\,\times\,}}{\mathtt{64}} = {\frac{{\mathtt{368}}}{{\mathtt{25}}}} = {\mathtt{14.72}}$$

19 is your answer

Anonymous might also be asking

(356)^2 / 3980  =

about 31.843

You mean  this   ≤   or   this    ≥   ???

Go to "insert" above.....then "Special Character"......you will see all the symbols...just click on any one to insert it into a question.......

Nice, MG1....here's an example of what MG1 is taliking about

.34   =     put this over 1

.34 / 1  =    move the decimal two places on the top and add that many zeroes on the bottom

34 / 100   =   reduce the fraction  =

(17 x 2) / (50 x 2) = 

17 / 50

And that's it.....!!!

Pretty much but we all get stuck sometimes..

If its 438km and 1876 then... mate, you've passed it along time ago .

Unless its 438km and 18.76

$${\mathtt{438}}{\mathtt{\,-\,}}{\mathtt{18.76}} = {\mathtt{419.24}}$$

I wasn't too sure myself.

But i found this!

To convert a Decimal to a Fraction follow these steps:

Yep i also added some maths!

My watchlist hadn't notified that you had responded.

But if i saw that i would've been FREAKED out!

Is that even possible... O.o

Also, one question.

How did you capture the transparent cat ear?

$${\frac{{\sqrt{{\mathtt{356}}}}}{{\mathtt{3\,890}}}} = {\mathtt{0.004\: \!850\: \!375\: \!903\: \!371}}$$

As complicated as it seems this is the answer!

2015-1356=659

If you were born before April the 6th you'd be 659 yrs old.

But if it's after then you're 658yrs old!

Hah Lol

Do you mean Square root?

To do it on the calculator type

sqrt(?)

?: Any number

$${\sqrt{{\mathtt{25}}}} = {\mathtt{5}}$$

something amazing GOD has created.

I think YES!!!!

ONLY ONE PROBLEM...

You can't solve percents here!!     

2015-1356

659

Convert the mixed numbers to improper fractions

2 + 1/4 =   9/2

1 + 1/2  = 3/2

So we have

9/2   *   3/2  * 5/3  =

27/ 4 *   5/3        "cancel" the 27 and the 3

9/4 * 5/1 =

45/4