Answer:
A
Then that gives you -n=2
Than u multiply it by -1 to get rid of the negative n, giving you the final answer of n=-2
Step-by-step explanation:
Two equal roots means a discriminant of zero.
(k + 2)x² + 4k = (4k + 2) x
(k + 2)x²- 2 (2k + 1) x + 4k = 0
When we have an even linear term it's easier to generate 1/4 of the usual discrimant,
0 = d/4 = (b/2)^2 - ac = (2k + 1)² - 4k(k+2) = 4k² + 4k + 1 - 4k² - 8k = -4k + 1
4k=1
k=1/4
Answer: k=1/4
Check:
(k + 2)x² + 4k = (4k + 2) x
(9/4)x² - 3x + 1 = 0
9x² - 12x + 4 = 0
(3x - 2)² = 0
A perfect square, two equal roots, good
Answer:
1. 10 rainy days
2. 24 points
3. 4 cups
Explanation:
Divide thirty by three to get ten rainy days.
Divide 15 by 90, then multiply the product by four to get 24 points.
divide the volume value by 8.
I’m pretty sure it’s 14.76 minutes
Since 240 milliliters are 0.240 liters, there are
servings in a 2-liter bottle. So, you can make 8 servings.
