Melody

1234smile:

I don't know which one is right, and I need your help. Is it A or B.

x^2 means x squared if you didn't know.

A) y= -x^2+2x+3 x=-2/2(-1)= 1

y= -1^2+2(1)+3
1+2+3
y=6

B) y= -x^2+2x+3 x=-2/2(-1)= 1

y= -1(1)^2+2(1)+3
-1+2+3
y=4

anonymous16:

How do i put this as an exact answer? Tan-1(11/10)+ Tan-1(3/22)= ?

anon11:

How do you know when to use combination and when to use permeation?

dish:

im looking for pattern on the side of a polygon inscribed in circle knowing the radius