Two events are independent if whether an event occurs or not doesn't affect the possibility of whether the other event occurs or not.
<span>"A bag contains red marbles and blue marbles. A red marble is selected followed by a blue marble, at random, without replacement": Since the selection is without replacement, the events are dependent.
"</span><span>A coin is flipped twice": Independent
</span>
<span>"A bag contains nickels and dimes. A nickel is selected followed by a dime, at random, with replacement.": Since the selection is with replacement, the events are independent.
</span><span>"A spinner contains 4 equal sectors. Each sector is labeled A, B, C, and D. The spinner is spun twice.": Independent</span>
Answer:
Laura = 14 Years
Juan = 21 years
Step-by-step explanation:
Let :
Laura's age = x
Juan's = x + 7
Product of their ages = (x) * (x + 7) = 294
x² + 7x = 294
x² + 7x - 294 = 0
x² + 21x - 14x - 294 = 0
x(x + 21) - 14(x + 21) = 0
(x + 21) = 0 or (x - 14) = 0
x = - 21 or x = 14
Age can't be negative
Hence, x = 14
Laura = 14 years
Juan = 14 + 7 = 21 = 21 years
Answer:
3x=21
X=7
Step-by-step explanation:
Answer:
B. Exponential.
Step-by-step explanation:
Each year you can find the estimated population for the following year by multiplying by 1 + 1.7% = 1.017.
The population estimate in x years time = 78,918 (1.017)^x.