Answer:
A
Step-by-step explanation:
The position of an atom moving inside a cathode ray tube is given by the function:

Where f(t) is in meters and <em>t</em> is in seconds.
And we want to determine its instantaneous velocity at <em>t</em> = 2.5 seconds.
The velocity function is the derivative of the position function. Thus, find the derivative of the function:
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<em />
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Then the instantaneous velocity at <em>t</em> = 2.5 will be:

Our answer is A.
Answer:
Option A: 1.50x +15
Option B: 3x
After 10 rides, the total cost of each option will be the same. This total cost is $30
Step-by-step explanation:
X represents how many rides you take. After 10 rides, the total cost of each option will be the same. To find that, keep plugging in numbers into x until the numbers are the same. This total cost where the numbers are the same is $30.
Answer:
It should be $27830 if I'm reading this right.
Step-by-step explanation:
3% of $23000 is $690
$690 * 7 = $4830
$23000 + $4830 = $27830
Answer:
34
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ 1, 6 ]
f(b) = f(6) = 6³ - 9(6) = 216 - 54 = 162
f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8, thus
average rate of change =
=
= 34