Answer:
E
Step-by-step explanation:
Given
y = 2x² - kx + 3
with a = 2, b = - k and c = 3
Since the curve touches the x- axis at one place then the roots are real and equal and the discriminant for this condition is
b² - 4ac = 0, that is
(- k)² - (4 × 2 × 3) = 0
k² - 24 = 0 ( add 24 to both sides )
k² = 24 ( take the square root of both sides )
k = ± 
= ± 2
k = 2 or k = - 2 → E
Ummm I'm not sure but let me do the math and I'll tell u :)
The answer is x^2-5x-6
Don’t mind my English work in the background
To find your answer you'd first add up all of their laps that they had completed over the 3 weekends.
8,597 + 11,065 + 9,211 =28,873 laps.
Afterwards, you'd subtract 28,873 from the original 40,000 goal and end up with 11,127 more laps as your answer.
No, neither of them are correct. The reason for this is they are multiplying 4 digit numbers together so they have to multiply each digit of 4372 by 4275, adding one more zero at the end of each product starting at 3. Then they have to add each product together.
