Ill give all my points to someone who can solve this probability problem correctly and clearly to understand. A red, a black and a white sphere are inserted in a bag. A sphere is randomly taken out of the bag and got its color marked and returned again to the bag. The same is done with a second sphere. List the possible results.
a) What is the probability that both spheres have the same color?
b) What is the probability that the white sphere will be taken out?
c) What is the probability that the spheres have different colors?

+5.20 µC

Explanation:

Given that

Charge =−5.20 µC and radius= 5.40 cm.

Insert a +10.4- µC charge at the center of the sphere

As we know that according to  Gauss's theorem electric field inside the metal is zero.

When +10.4 µC charge insert but the total charge on the sphere should be  −5.20 µC.So the charge on the outer surface of the sphere will be +5.20 µC.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

correct answer:

i^31 = -i