If events a and b are mutually exclusive, p(a or b) = 0.5, and p(b) = 0.3; then what is p(a)?

Step-by-step explanation:

We have that:

In which P(a) is the probability of a but not b and is the probability of both A and B.

By the same logic, we have that:

Also

P(A or B) is

Events A and B are mutually exclusive

This means that

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length