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The perimeter of a sector is the sum of the lengths of the two radii plus the arc length of the portion of the circle.

As happy7 says, we could be more specific if we knew these values.

What value of y satisfies the equation y3+14=512?

6.4 - 2x - 6.63x  =  610.5

Combine the x-terms:

6.4 - 8.63x  =  610.5

Subtract 6.4 from both sides:

     - 8.63x  =  604.1

Divide both sides by -8.63:

       x  =  -71.66  (approximately)

0.00247

To the nearest 1:  0

To the nearest tenth:  0.0

To the nearest hundredth:  0.00

To the nearest thousandth:  0.002

To the nearest ten-thousandth:  0.0025

To the nearest hundred-thousandth:  0.00247

Discount rate:  you saved $6.00 off an original amount of $30.00

     --->     6/30  =  1/5  =  .2  =  .20  =  20%

Tax rate:  $1.32 / $24.00  =  0.055  =  5.5%

sin(x) + sin(x)·cot²(x)

= sin(x) + sin(x)·[cos²(x)/sin²(x)]        since cot(x) = cos(x) / sin(x)

= sin(x) + cos²(x)/sin(x)                     cancel out the sin(x) factor

= sin²(x)/sin(x) + cos²(x)/sin(x)          write both terms with the common denominator of sin(x)

= [ sin²(x) +  cos²(x) ] sin(x)              add, using the common denominator

=  1 / sin(x)                                      sin²(x) +  cos²(x)  =  1

= csc(x)

You don't see it because it's not there. LOL

Is there a question here???   How many friends?

I don't see a question here

Yes it would be. LOL

Super extreme awesome?

You can use the calculator at this site.

First, make certain that the calculator is in the correct mode; do you want your answer in radians or in degrees? (click the correct choice at the lower left).

Then press (2nd) and then (atan) to enter atan(1.16)

thanks i feel good now

Yes you are!!!!!!!!!!!!!

Is the question:  What did calculating that number tell him about his newspaper sales?

If so, calculating the average says that the average number of papers sold per day is 40.

If that isn't the question, what is the question that one is supposed to answer?

am i good at math?

Do you mean that the base is 1/2?

If so, use the change-of-base formula to get:  

if you want to use common logs:  log (to the base 1/2) 9  =  log(9) / log(1/2)

if you want to use natural logs: log (to the base 1/2) 9  =  ln(9) / ln(1/2)

Generally speaking, use:  log(number) / log(base)     or     ln(number) / ln(base)

You'll get the same answer using either log or ln.

The owner of the U-Bop Inn decided to sell newspapers to its customers. He sold 15 newspapers on the first day, and 39, 40, 20, 68, 53, and 45 on the following six days. After the seventh day, he computed the mean as 40. What did calculating that number tell him about his newspaper sales? The most he should count on selling was 40 newspapers a day. He was guaranteed to sell 40 newspapers a day. He could not approximate how many newspapers he would sell in one week. Even though he sold significantly less and significantly more than 40 newspapers on a few particular days, he tended to sell, on average, 40 newspapers per day.

Thank you again. LOL. Yes Happy7 your even better than me at math.

What is the question?

a  =  8^-2 x 2^7 

Since 8 ^ -2  =  1 / 8^2  =  1/64   and   2^7  =  128,   8^-2 x 2^7  =  128/64  =  2

b  = 4^-3  =  1 / 4^3  =  1/64

a/b  =  (2) / (1/64)  =  2 x (64/1)  =  128

So, a/b = 128,    or, as a ratio:  128/1 

I know..........

your welome

639/16 or 39-15/16

Yeah but I got the other one