Answer:
I = 1.47001
Step-by-step explanation:
we have the function

In polar coordinates we have

and dA is given by

Hence, the integral that we have to solve is

This integral can be solved in a convenient program of your choice (it is very difficult to solve in an analytical way, I use Wolfram Alpha on line)
I = 1.47001
Hope this helps!!!
Answer:
8:30
Step-by-step explanation:
At 12:00 (noon) In New York, It is 2:00 pm in Rio De Janerio.
That if he left at 1 in NY it would've been 3 in Rio, 3+5.5=8.5
Which is 8:30 pm. Hope this helped!!
Answer:
x = -6 x=5
Step-by-step explanation:
x^2 +x -30 =0
Factor
What two numbers multiply to -30 and add to 1
6 * -5 = -30
6-5 =1
(x+6) (x-5) =0
Using the zero product property
x+6 =0 x-5=0
x+6-6=0-6 x-5+5=0+5
x = -6 x=5
Answer:
7 hours
They worked together for 7 hours ($350 + $120)