Answer:
b^4 / a
Step-by-step explanation:
I have attached the explanation above. hopefully this will help
Answer:
x1 = 8+√10, x2 = 8 -√10
Step-by-step explanation:
x² - 16x + 54 = 0

Answer:
7.6 x 10^-4
Step-by-step explanation:
The answer is No, they are not proportional. This is because 8/42 is not equal to 20/105.
20 total marbles....7 are green
probability on first draw is 7/20...and since the marble was not replaced, the probability on the second draw is 6/19. And since they cant happen at the same time, we multiply
7/20 * 6/19 = 42/380 which reduces to 21/190