The price of of the hotdog to the price of popcorn is in the ratio 5:4
25:20 is 5:4
Answer:
Step-by-step explanation:
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Answer:
d. 16x² + y² = 16
Step-by-step explanation:
Standard form of an ellipse is:
x² / a² + y² / b² = 1
If b > a, the ellipse has a vertical orientation.
We can ignore options b and c, since they have minus signs in them.
Convert the other options to standard form:
a. x² / (1/16) + y² / (1/25) = 1
x² / (1/4)² + y² / (1/5)² = 1
1/4 > 1/5
d. x² + y² / 16 = 1
x² / 1² + y² / 4² = 1
1 < 4
e. x² / 16 + y² = 1
x² / 4² + y² / 1² = 1
4 > 1
Of these three options, only d is a vertical ellipse.
ANSWER
c.It is neither an odd nor an even function.
EXPLANATION
The given function is

If this function is odd, then f(-a)=-f(a).


Now ,


Since

The function is not odd.
Also if the function is even, then

Since

the function is not even.
Hence the function is neither even nor odd.