Which equation is an example of the commutative property of multiplication? a. (4 + 2i) = (2i + 4) b.(4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) c.(4 + 2i)(3 – 5i) = (4 + 2i)(3 – 5i)(1) d.(4 + 2i) = (4 + 2i + 0)

Answer :-B) (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) is an example of the commutative property of multiplication.

Explanation:-  

In mathematics, a binary operation is said to be commutative if changing the order of the quantities does not effect the result.

The commutative property of multiplication tells that two expressions can be multiplied in either order.i.e.ab=ba for every algebraic expression a and b.

Thus B is the right option.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560