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
340 you were right
Step-by-step explanation:
Answer:

Step-by-step explanation:
Please refer to the attached figure for labeling of given diagram:
We are given the following angles:

Angles opposite to each other when they are formed by crossing of two lines are known as vertically opposite angles. And vertically opposite angles are always equal to each other.
Using property of vertically opposite angles:

Line CD is a straight line, so 
Also,

Hence, <em>answer</em> is
.
Answer:
7
Step-by-step explanation:
each cup is 1/3 so divide 2 1/3 by 1/3 to get 7 cups
hope this helps