Answer:
<u>The correct answer is A. 1 +/- i √31/2</u>
Step-by-step explanation:
Let's use the quadratic formula to solve the equation:
x² - x + 8 = 0
Let's recall that the quadratic equation is:
x = (-b +/- √(b² - 4ac))/2a
In the equation, a = 1, b = -1, c = 8.
Replacing with the real values, we have:
x = (-b +/- √(b² - 4ac))/2a
x = (- (-1) +/- √(-1² - 4 (-1) (8)))/2(1)
x = (1 +/- √( 1 - 32)/2
x = (1 +/- √( - 31)/2
x = (1 +/- √( -1 * 31)/2
Let's recall that √ -1 = i
x = 1 +/- i √ 31/2
<u>The correct answer is A. 1 +/- i √31/2</u>
Well, let's create an organized list for our cakes sold each day and work from there.
0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 9; remove the first number in the list and remove the last number in the list. Repeating this process until it can no longer be done will let us find our median.
0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6;
0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5;
1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 5;
1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4;
1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4;
1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 4;
1, 1, 2, 2, 2, 2, 2, 3, 3;
1, 2, 2, 2, 2, 2, 3;
2, 2, 2, 2, 2;
2, 2, 2;
2.
As we can see from our narrowed list, 2 is the median of the set.
I hope this helps!
