In general, in polar coordinates (r, ω) = (-r, ω+π), because when you add π radians to an angle you are turning 180 degrees and then need to change the sign of the radius to preserve the original point.
Then (-5, π/4) = (5 , π/4 + π) = (5, 5π/4)
Answer: (5, 5π/4)
The answer is A). Five people received the email on the first day on the experiment.
Answer:
3pi or approximately 9.42
Step-by-step explanation:
The diameter is 3
The circumference is given by
C = pi *d
C =3 pi
We can approximate pi by 3.14
C = 3*3.14
C =9.42
The correct option is (B): (3x+2)(3x+1)
Explanation:
Add all the boxes:
9x^2 (boxes)
9x (boxes)
The constants = 2
So it becomes:
9x^2 + 9x + 2
9x^2 + 6x + 3x + 2
3x(3x+2) + 1(3x+2)
(3x+2)(3x+1)
