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Forgive me. Im a bit rusty

So isnt cos(120) = to, like, 2pi/3  ?

Cause pi/3 is 60 degrees

So two of them is 120?

And due to it being cos, it will be positive in the 1st and second quadrants no matter what.

So.... 2pi/3, final answer

Hi, Alan,  I found this site,

https://www.microsoft.com/en-au/download/details.aspx?id=15702

Is this a free calculator ?  Sometime I download things but then I cannot install unless I pay ://

Have you used this calc much.  Have you found it better than the others we already use (for some applications)?

Find the simple interest rate if a loan of £9000 gains interest of £1260 in 2 years

I=Prt

1260=9000*r*2

1260=18000r

r=1260/18000

1260/18000 = 0.07

that is 7% p.a.

Originally:  j = p     

Finally;   p + 42  = 3(j - 42)

Use the first in the second:  p + 42 =  3(p - 42)

Simplify:     p + 42 = 3p - 126    or  2p = 168   so  p = $84

That is the original amount that peiling had, so the final amount is 84+42 = $126

The Microsoft Mathematics graphing calculator shows the following:

.

If the original length of the side of a cube were 5.42 inches it would be difficult to cut 7 inches off it!!

can u factorise x2-7x+12

\(x^2-7x+12\)

You need to find 2 numbers that multiply to +12  and add to -7

Since they multpiply to a positive number, the signs must be the same.

Since that add to a negative, they both must be negative.

The only option is  -3 and -4

(x-3)(x-4)

first 2 meant to be squared symbol

Вы очень радушны

Спасибо!

This does not translate properly.  But I think that this is what you mean.

Это не перевести правильно.  Но я думаю, что это то, что вы имеете в виду.

Please explain the course of solving the expression 3 ^ 6 * 15 ^ -5 slashes (division) 5 ^ -4 answer 0.6 {Her}

3 ^ 6 * 15 ^ -5 / ( 5 ^ -4)                                       answer 0.6 {Her}

\(3 ^ 6 * 15 ^{ -5} / ( 5 ^{ -4})   \\ =\frac{3 ^ 6 * 15 ^{ -5} }{5 ^{ -4}}\\ =\frac{3 ^ 6 *3 ^{ -5}* 5 ^{ -5} }{5 ^{ -4}}\\ =3 ^ {6+ -5}* 5 ^{ -5--4}\\ =3 ^ {1}* 5 ^{ -5+4}\\ =3 * 5 ^{ -1}\\ =\frac{3}{5}\)

It will be very nice if you give me some feed back.

We get so little feedback especially off guests and it discourages answerers from making the effort sometimes. :(

It would be better if you had given me an example but basically you have to find the factors.

For instance

find the zeros of  \(x^2+6x+8\)

This means, when will    \(x^2+6x+8=0\)

It is not so easy to see what all the answers might be but if I factorize it like this

\((x+4)(x+2)=0\)

Then I can find the answer easily.  

This is because if 2 (or more) things multiply together to give 0 then at least one of them HAS to be 0.

So this will be true if and only if

x+4=0      OR     x+2=0

so

x = -4        OR    x = -2

Snow fell at a constant rate in a mountain town. The depth of the snow during the snowstorm is represented by the ordered pairs (2, 4) and (3,6). In the ordered pairs, the x- coordinates represent the duration of the snowstorm in hours. the y-coordinates represent the depth of the snow in inches, at what rate did the depth of the snow change during the snowstorm.

6-4= 2 inches

3-2 = 1 hour

So the rate is    2 inches per hour

          . . .

0.608108 (decimal)

45/74 (fraction)

Part 2:

By using photo math, we found out that

(v - 67^{3 / 5}) / 7 = v^{3 / 5}

^and

^{v ≈ 158.993142}

v^{1 / 3} = 5.417423624 ≈ 5.42 in

Answer: 5.42 in

0.0000036937852064= 36,937,852,064/10,000,000,000,000,000 which reduces to the previous post.

the answer to your question is 0.003

what is the inverse cosine of 0.728?=0.755396163 rad

the answer to the problem :what is the inverse cosine of 0.728?= 0.755396163 rad

  0.0000036937852064 as a fraction=1/270,725

8/11 Bam

11911360701129244349407054460

3 x 10^-3 =   0.003