Answer: Each notebook costs $2.25. (6p = $13.50)
Step-by-step explanation:
You simply have to divide $13.50 by 6 to get the quotient of $2.25. $2.25 indicates the unit rate between the two.
The answer is A because of base times height
First, rewrite the equation so that <em>y</em> is a function of <em>x</em> :
(If you were to plot the actual curve, you would have both 
and 
, but one curve is a reflection of the other, so the arc length for 1 ≤ <em>x</em> ≤ 8 would be the same on both curves. It doesn't matter which "half-curve" you choose to work with.)
The arc length is then given by the definite integral,
We have
Then in the integral,
Substitute
This transforms the integral to
and computing it is trivial:
We can simplify this further to
Answer: 8^2 18^2
Step-by-step explanation: The way that you figure out the power is by multiplying the 4x2=8 than the 9x2=18 than you raise them both to the second power.
Step-by-step explanation:
3⁴ can also be written as
3 × 3 × 3 × 3 = 81
hope this answer helps you dear!
