Answer:
the probability that it is not a drama movie is 15/23
Step-by-step explanation:
To calculate the probability we have to make the number of favorable events divided the number of possible events
number of possible events = x
to calculate it we add all the movies
x = 10 + 5 + 8
x = 23
number of favorable events = y
to calculate it we subtract the drama movies from the total of movies
y = x - 8
y = 23 - 8
y = 15
now we divide 15 by 23 and we get the probability
15/23
Answer:
Option D is correct.
The equation with roots 3 plus or minus square root 2 is x² - 6x + 7
Step-by-step explanation:
The roots of the unknown equation are
3 ± √2, that is, (3 + √2) and (3 - √2)
The equation can then be reconstructed by writing these roots as the solutions of the quadratic equation
x = (3 + √2) or x = (3 - √2)
The equation is this
[x - (3 + √2)] × [x - (3 - √2)]
(x - 3 - √2) × (x - 3 + √2)
x(x - 3 + √2) - 3(x - 3 + √2) - √2(x - 3 + √2)
= x² - 3x + x√2 - 3x + 9 - 3√2 - x√2 + 3√2 - 2
Collecting like terms
= x² - 3x - 3x + x√2 - x√2 - 3√2 + 3√2 + 9 - 2
= x² - 6x + 7
Hope this Helps!!!
Evaluate: 71-b, if b is 27 the answer is 44
I think the first part is 466
