Answer: Cost of adult ticket is $10.75.
Step-by-step explanation:
Since we have given that
Total cost of the six tickets = $40.50
Number of adults = 2
Number of children = 4
Let the cost of child's ticket be x
Let the cost of adult's ticket be y
So, According to question,
Put the value of Eq(1) in Eq(2), we get
So, The cost of child's ticket is $4.75
Hence, the cost of adult's ticket will be
Therefore, Cost of adult ticket is $10.75.
Answer:
is an even function.
Step-by-step explanation:
Recall when it means when a function is even or odd. An even function has the following property:
And an odd function has the following property:
So, let's test some values for cos(x).
Let's use π/3:
From the unit circle, was can see that this is 1/2 (refer to the x-coordinate).
Now, let's find -π/3. This is the same as 5π/3. Thus:
And again from the unit circle, we can see that this is 1/2.
Therefore, despite the negative, the function outputs the same value.
Cosine is an even function.
Notes:
Cosine is an even function and sine is an odd function. It's helpful to remember these as they can help you solve some trig problems!