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Area of a sphere

A = 4 pi r^2

solve for r

r= SQRT ( A/(4 pi))

Here's a method to do this....it's called "divide and average".....the goal is to get two results that are very close to each other......

Let's try 35.....we know the square root has to be between 5 and 6   so  let's take the average of these two numbers   =  [5 + 6] / 2 = 5.5

Divide 35 by this  35/5.5  = about  6.36   this is too big

Now take the average of the last two results  [ 5.5 + 6.36[/ 2 = 5.93

Divide 35 by this =  5.9021922428330523  too small

Average the last two results again   [5.93 +  5.9021922428330523]/2 = 5.91609612141652615

Divide 35 by this  = 5.9160634448278270072

If we do this one more time, we should have something rhat's pretty accurate

[5.91609612141652615  + 5.9160634448278270072] / 2 =  5.9160797831221765786

Divide 35 by this = 5.9160797830770555065347

Which is extremely close to our last result.....!!!!

Note that the onsite calculator gives the value of sqrt(35)  = 5.916079783099616

Which is very close to ours  !!!

There are other methods available, but I like this one the best......!!!!

Without calculator? If you have a lot of time and using just pencil and paper, you can use a method called "Newton's Method". But it's very cumbersome and laborious. I would say it would take you about an hour to find square root of 35 to 10 decimal places.Scary, ha!!.

These two numbers are relatively prime [share no common factors]....so their GCF = 1

33 = 11 x 3

46 = 23 x 2

| 4x - 3 | < 7    this says that

-7 < 4x - 3 < 7      add 3 to everything

-4 < 4x < 10        divide everything by 4

-1 < x < 10/4     

-1< x < 5/2

-1 < x < 2.5

Here's the graph.........https://www.desmos.com/calculator/uydosekj8h

Note that the absolute value function is less than 7 between  x = -1 and x = 2.5

101 i think?

Here's the equation to solve

40x = 60 + 20x       where x is the number of days that equalize the cost

I'm making a slightly different assumption here that the room is 6m on each side

Then 6m = 600 cm      and the area is (600cm)^2 = 360,000cm^2

And each tile [assuming that they are uniform] occupies   (1/384)th of this area = 937.5cm^2

So the side of each tile = sqrt(937.5cm^2) = about 30.619cm

use the / symbol for division

Perform this operation to find p: -11.8+1.34

Adding 1.34 cancels out the -1.34.

=34

subtracting a negative is the same as adding, -21(-)-55=34

=1 2/3=5/3

x = 23/68

Press the key labled "2nd" and then you should see the inverse functions.

18/57=6/19

Which is greater 5 or 1? So,obviously .521 is greater than .136                                                                                                

Did you try it?

34=2 X 17

= -13

Did you try on this calculator? At any rate here it is:1.4142135623730950488016887242097

You mean on this calculator? It's the 2nd in the top left hand corner!!!

10 chickens

just add the number by itself if your timing it by two 

answer: 4

975%

1.00=100%

0.5=50%