All Answers 356007 Answers

2 apples. 2 apples

IF it has a root   -1 -3i   it ALSO has a root  -1+3i

so if you multiply

(x-5)(x+1+3i)(x+1-3i)        all out

you will get

x^3-3x^2-50       "C" 

'normal' ususally means perpindicular to the surface the object is on.....just an FYI     G'Day !

When you have a graph of a line,

the y intercept (or y-axis intercept) is where the line crosses the y-axis (this is where x=0)

   the x-intercept (or x-axis intercept) is where the line crosses the x-axis (this is where y=0)

So if you have an equation of a line i the form of y=mx+b    Just put x=0 to find the y intercept

    and put y=0 to find the x-intercept.

To get it into y=mx+b form you need to get y by itself which can be done by adding 3y to both sides so it should end like this:

x-4=3y or 3y=x-4

Then you divide both sides by 3 (there is a one in front of the the x) and your final result should be:

y=1/3x + 4/3

13% of 44.99 is the same as 0.13 * 44.99 which is 5.8487.

If 'normal' force means the horizontal vector that would be the force times the cosine of 40°

Nevermind, I found the answer.

To solve it, it must be an equation, like log(10x) equals 'something'

36,863

A difference of $1 - .75 =0.25c in the price of wheat per bushel makes a difference of $80 - $70 =$10 an acre in rent. Hence the rent paid in wheat is: $10 / 0.25c =40 bushels per acre. The value of 40 bushels of wheat then is: $40 x $1 =$40, so that the rent, per acre, paid in cash is: $80 - $40 =$40 per acre. Therefore, the number of acres is: $800/$40 = 20 acres, which is the size of the farm.

Here is a trick to multiplying numbers that end in 5(i. e., when squaring them): Eample: 45 x 45 =

1) First multiply the 4 by next higher digit, or 5 in this case: 4x5 =20. Then multiply 5 by itself as usual:

5x5 =25. And so the answer is:2025!. 75 x 75 =5625. or 95x95 =9025.....and so on.

If you wish to do this problem in your head - break the problem down. 45 multiplied by 45 -----------------------------------------

 45                                         40           40        40         5

x45      is the same as ----->  x40    +  x   5  +  x  5   +  x 5

----                                        -----        -----      -----      -----

2,025                                   1600   +  200   +  200   +  25

------------------------------------------------------------------------------------------------------------------------------------------------------------

Another example:

 23                                         20           20        40         5

x45      is the same as ----->  x40    +  x   5  +  x  3   +  x 3

----                                        -----        -----      -----      -----

1,035                                    800   +  100   +  120   +  15

------------------------------------------------------------------------------------------------------------------------------------------------------------

sqrt(54)  =  sqrt (9 x 6)  =  3 sqrt 6  = 3 x 2.4495 = 7.348

3/8 x 20 = 3/8 x 20/1  = (3x20)/(8x1) =  60/8 = 7 1/2

Do you have a programmable handheld calculator?    They are easy to get these days...I even had one many years ago...

There IS a calculator on this site that would give you this answer very quickly and easily.....

45^2 = 45 x 45 =2025

5a = . ;  Divide both sides by 5

a= (. ;)/5

Good spotting EP.

So that is 168/7= 24 woodchippers and no chainsaws.

Sounds a bit suspect to me - I don't know how the wood is chipped if the trees are not cut down first but that is not my worry

y+7=2/3(x-4)

This is the equation of a line.  there is nothing to solve

\(y+7=\frac{2}{3}(x-4)\\ y+7=\frac{2(x-4)}{3}\\ 3y+21=2(x-4)\\ 3y+21=2x-8\\ 0=2x-3y-8-21\\ 2x-3y-29=0\\ \text{That is the line in general form.}\)

What is 21x65

2*65=130

so 20*65=1300

1300+65=1365

use the calculator on the home page.

Product of 2 number is 10 one of them is 15 another is what?

15x=10

x=10/15 = 2/3

the numbers are 15 and 2/3

OR, if you meant "LCM", Least Common Multiple, then:

56 = 2^3 * 7

78 = 2 * 3 * 13

=2^3 x 7 x 3 x 13 =2,184.

You will need to define what a work hour is.

Someone somewhere is working always.

For instance, a ward of people in hospital are attended by a worker every minute of every day.