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if the equation is 0/1000 the answer is 0

if the equation is 1000/0 the answer is undefined.

These answers are the same for any number substituted for 1000

Use the Pemdas method to solve this

first the parenthasis (-42/7-3(2))

                                  (-6 - 6)

                                     (-12)

then add -3 to -12

answer: -15

8/9   of   9   is     8

8/9  x  9   =   8/9  x  9/1   =   8/1  = 8    (because the '9's cancel out.....right?)

Good Luck....keep up the hard work !

The wire is the hypotenuse and the tower and the ground are the 'legs' of a right triangle....

remember SOHCAHTOA       Sin x = Opposite/Hypotenuse  ?

opposite = tower = 75     x = 65 degrees      

so the   sin 65 = 75/hypotenuse          

re-arranging:   Hypotenuse =  75 / sin65  = 82.75 ft 

Do the multiplication first using distributive property :

3(a-2)    -     2(b+4) =

3a - 6    -   (2b +8)   =

3a - 6    - 2b - 8

3a - 2b - 14

12  divided 'by' 3     is   4      divide by   means:   how many times will the 'by' go into the number

3/4    is   Three fourths    it is also   3 divided 'by' 4   

OK?   Am I helping?

The nearest HUNDREDTH is the second place to the right of the decimal...in this example rounding to the nearest hundredth would yield   0.01

....after you hit the exponent function,  open parenthesis, enter your fraction, then close parenthesis.

5^(1/2)       is 5 to the 1/2 power

you do this, but follow along, no copying.

6x-15-x=5x-15

    +15        +15

6x-x=5x

^^^^

5x=5x

x can equal anything in the world

-4.16 -- its already a mixed number

Thank you I still being teach english so i can learn more math.  i and e happen for much math work so I think it is how you do this problem in a fast way. Sometime e is the same as ^ or sometime log inverse. I do not ask this math but see it here and learn how to do it. Thank you for help explain

that is -8 because you are at -7 and you are minus (adding) the -1. Saying: " Keep, Change, Change"

-1  +  - 7  =   -1  - 7  =  -8

Thanks, its Algerbra 1A and its like a " evaluating period" i only put like 10 questions out of 40 lol, and thanks for the tip, and thanks for explaining!

Was your question   1.035 x 10^(-4)  Liters?

that is  1.035 x 10^(-1)  ml     or    .1035 ml

Sorry..... i. e.   means 'in other words'   or   'another way of looking at it'

PI is   a never ending (as far as we know) , never repeating  decimal number....here is the first few numbers of pi

3.14159265359..........

pi x diameter = circumference     divide both sides by  pi to get

diameter =  circumference / pi

               = 348/pi   = 110.77 feet

Enter   1.07999     then the x^y  key      then   36      then  =  

You are awfully bored......go outside.

7- (-5)  =  12 degrees difference

7     6     5     4     3     2     1     0    -1    -2    -3    -4    -5

   1  +  1 + 1  +  1 + 1  + 1  + 1  + 1  + 1  + 1  + 1  +  1       =   12

What does i.e. mean?  Is that an exponent of i or some kind of logarithm?  Do you square it?  is that why you have (-1) ml in the answer? Why do you use this to find ml?

There is 1000ml / l     i.e. 1000ml per liter.....so multiply by 1000  (or 10^3)

1.035 x 10^(-4) x  10^3 = 1.035 x 10^(-1) ml

2*5=10 then  10+10=20