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1/4x4=1

1 divided by 4= 0.25

Or:

25 cents/$0.25 = 1 quarter

4 quarters=1$

so, the answer is 0.25

0.25

13/2   x   35/4      Just multiply the numerators together and the denominators together

(13x35) / (2x4)  = 455/8

(13*35)/(2*4) = 56.875

Just a neat little trick someone asked about before.....  You're welcome!

-[3(2x-1)+x]=2[x-2(5x+4)]

=-3(2x-1) - x = 2x-4(5x+4)

=-6x+3 -x     = 2x-20x-16

=-7x+3        = -18x - 16

11x = -19

x = -19/11

Thanks ElectricPavlov!!!

The correct answer is 3/20 

Hey Amit.....   hit the = sign one MORE time to display Scientific Notation

13.07

you take 0.65 * 30

log is what the x in 10^x is 

so if log is 3 that makes 10^3 which is 1000

2x-5=3 

remove 2 from x

x-5/2=3/2

x-2.5=1.5

remove 2.5 from the x's side

x-2.5=1.5

  +2.5   +2.5

x=4

If the angles of the triangle are A, B, and C with the opposite sides a, b, and c,

then  C  =  cos^-1(  (a² + b² - c²) / (2·a·b)  ).

Similar formulas for the other angles.

you guys got reported duh

 t₂  =  -7  and  t₈  =  -31

There are  6  'steps' between  t₂  and  t₈  (8 - 2  =  6).

Call the common difference 'd'.

This means that  t₈  =  t₂ + 6d     --->     -31  =  -7 + 6d     --->     -24  =  6d     --->     d =  -4

Thus, t₁₀  =  t₈ + 2d     --->    t₁₀  =  -31 + 2(-4)     --->     t₁₀  =  -39

and:   t₁₂  =  t₈ + 4d     --->   etc.   

Well the fractions calculator is a bit too... complicated to be used to great effectiveness. Just put a slash between numbers. It will be formatted on the top.

Example:  3/5 = Three Fifths.

(5/6)² = (5/6)(5/6) [5/6 times 5/6]

5 * 5 = 25

6 * 6 = 36

(5/6)² = (25/36)

(I think)

15/100 Simplified:

Divide each by 5:

15 / 5 = 3

100 / 5 = 20

So finishing off, 15/100 simplified is 3/20.

pi/4   (45 degrees)

sin = cos = \(\sqrt{2}\) / 2     Tan = sin / cos  = 1     Cot = 1  

The answer to this complicated mathamatical question is 7