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
Add 6 to both sides
2m2+7m+6=0
Second it’s 7 minutes and 8 sec long
Answer:
slope intercept form: 1/2x+3/2yx+16
Step-by-step explanation:
<span>157.464m^3</span>
This is because using the formula, a^3, you get 5.4^3 which equals 157.464.