So 1, 4, 9, & 16 are all perfect squares
Probability = 4/20 = 1/4 = 20%
^ Either of these could work depending on the problem.
Answer:
The set of rational numbers is closed under addition, subtraction, multiplication, and division (division by zero is not defined) because if you complete any of these operations on rational numbers, the solution is always a rational number Page 8 11.
Step-by-step explanation:
If A and B are independent, then 
.
a.
b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:
c. DeMorgan's law can be used here too:
To find the amount in the account you need to find the monthly interest and times it by the number of months since the benefactor opened the account.
Monthly interest:
to find 6% you must use the proportions:
$20,000/100% = X/6%
then cross multiply,
X= (20,000 x 6)/100 = 1200
this number is your monthly interest.
Months
Now we have to find the months in 19 years:
12 x 19 = 228
times 12 because we know that a year has 12 months and we have 19 years so we must multiply those two.
Total amount:
$1200 (monthly interest rate) x 228 (months) = $273, 600
Answer:
sorry bad pic
Step-by-step explanation:
