For the equation to be true, the events A and B must be mutually exclusive.
Answer:
I will try to do it
Step-by-step explanation:
Answer:
c,d
Step-by-step explanation:
factorise it
x + 4 = 0 ⇒ x1 = −4
x − 2 = 0 ⇒ x2 = 2
13/21 cause 21 is a common denominator and 7x3+ 21 you have to do 7x=7 and 3x7=21 so you have to do 3x2= 6 so you do 6+7 which equals 13 and your answer is 13 over 21 since it can't be simplified