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Cal why are u answering homework??

Check this out:

Hellow Qwertyzz!

Do you know what floor function is? Just a reminder: Floor(3.9) = 3

Sqrt(1) = 1

Sqrt(2) = 1.414...

Sqrt(3) = 1.732...

Sqrt(4) = 2

Sqrt(5) = 2.236...

...

Sqrt (9) = 3

....

Sqrt(16) = 4

See the pattern?

The terms evaluate into an integer and only increases at the next perfect square.

Solving:

1 + 1 + 1 + 2 + 2 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 + 4 + 4

 = Gonna let you do some work

2)

(s/2)^2=144

So, s=24, s=-24

1)

(8/2)^2=16, so, c=16

Whats the number?

That is true.. Cal are you really in elementery school?

Note  :

sin (70)  = sin (60  + 10)

cos (50)  =  cos (60 -10)

sin (260) =  - sin (80) =  -sin (90  - 10)

cos (280)  = cos (80)  =  cos (90 - 10)

So  we  have

sin (70)  =  sin (60 + 10)  =  sin (60)cos(10) + sin(10)sin (60)

cos (50)  =  cos (60  - 10)  = cos (60)cos(10)  + sin (60)sin (10)

So  sin (70) cos(50)  =

[sin ( 60) cos (10) + sin (10)cos(60) ] [ cos (60)cos(10) + sin (60)sin (10) ]  =

[  sin (60)cos(60) cos^2(10) + sin (10)cos(60)cos(60)cos(10)  + sin(60)sin(60)sin (10)cos(10)  + sin (60) (cos(60) sIn^2 (10)] =

[ sin (60)cos(60) ( sin^2 (10)  + cos^2(10)  )    + sin(10)cos(10) ( sin^2(60) + cos^2(60)  ]  =

[ sin (60)cos(60)  (1)+  sin (10) cos(10) (1)  ]  =

[sin (60)cos(60)  + sin (10)cos(10) ] 

sin (260)  =  -sin(90 -10)  =  - [ sin (90 )  cos(10)   -  sin (10) cos(90) ] =  - cos(10)

cos (280)  = cos (90 -10)  =  cos (90)cos(10)  +  sin (10) sin (90)  =   sin (10)

So  

sin (260) cos (280)  = -cos (10) sin(10)

So  puting this all  together, we  have

sin (70) cos (50)  +  sin (260)cos(280)  =

[  sin(60)cos(60)  + sin (10)cos(10)]  +  [ -cos (10)] [ sin (10)]  =

 [√3/2 * 1/2]    + sin (10)cos(10)  - sin (10)cos(10)  =

√3  / 4

Hint:

This is rounding DOWN to the nearest whole number. For example, sqrt(2) would be 1

How old is cal though

Its okay. The people asking this type of question according to CU are in elementery school SO yah.

AltShaka is one year older than Cal. Depending if you guys skipped or flunked.

Hello Guest! You need to get better at spelling!

20 divided by 1/4 is the same as 20 times 4

= 80

OOO school! IM In schoo to! Im in the lowest grade in school. This is edited for privacy purposes. BTW Im about a dedcade pplus a few years old

Private...? Hint: I'm about a decade old

Oh shoot! I forgot to round!!!!! NOOOO Ty for catching my mistake!

What grade?

That really doesn't answer his question at all... and he wasn't asking for you to tell him that it was easy for you.

Lol That makes lots of sense

A better detailed one would be that anything divided by a fraction can be solved like this. You keep the first number change the sign from divison to multiplacation and then flip the fraction. E.G: 4/3 becomes 3/4