Step-by-step explanation:
first pick has probability

second pick has probability

combined probability is

Answer:
x=+/-3
Step-by-step explanation:
x^4-5x^2-36=0
factor
(x^2-9)(x^2+4)=0
split into 2 equations because one of these terms will need to equal zero for the eqation to be true
x^2-9=0 x^2+4=0
x^2=9 x^2=-4
x=+/-3 no real numbers
Statement 1: a+c=b+c
Statement 2: a+c+(-c)=b+c+(-c)
Statement 3: a+[c+(-c)]=b+[c(-c)]
Statement 4: a+0=b+0
<span>Statement 5: a=b. </span>
<span>What is the reason for Statement 2?
A.) Property of opposites
This property is where a number and its opposite are called additive inverses. The sum of these numbers is equal to 0.</span>