<span>A perfect power is a positive integer that can be expressed as an integer power of another positive integer.
More formally, n is a perfect power if there exist natural numbers m > 1, and k > 1 such that

.
Sometimes, some fractional or decimal radicants are not perfect power, yet they evaluate to a terminating decimal or recalling decimal.
Example: 6.25 is not a perfect power, but

.
Therefore, </span><span>A radical whose radicand is not a perfect power is a rational number</span> SOMETIMES.
Answer:
slope(m)= (9/4) and y intercept =5
Step-by-step explanation:
Answer:
The two values of production level are:
x = 20
or
x = 140
Step-by-step explanation:
Let's write the Profit equation by subtracting the cost function from the revenue one:

Now, we set to find the production level "x" to give us a profit of $ 700:

So we solve this quadratic equation using the quadratic formula:

which gives two posible solutions: x = 20, or x = 140