Solve for a. 4(a + 3)=12 + 4a

−1

no solution

all real numbers

−3

Final All Real Numbers

Steps/Reasons/Explanation:

Question: Solve for a. .

Step 1: Expand.

Step 2: Cancel on both sides.

Step 3: Since both sides equal, we would have infinitely many solutions.

~I hope I helped you :)~

what do you need me to answer?

step-by-step explanation:

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