Answer:
Step-by-step explanation: when you take 521 and divide it by 4 you get 130.25, which is about 130, making you choose answer choice B. (lol i like your profile picture too!!)
Answer:
12
Step-by-step explanation:
To find arc length, start by dividing the arc's central angle in degrees by 360. Then, multiply that number by the radius of the circle. Finally, multiply that number by 2 × pi to find the arc length.
Answer:
32
Step-by-step explanation:
I just know that it's the answer
Its simple foil
(5-7i)(8+13i)
you should know i^2=-1
=40+65i-56i-91i^2
=131+9i