√(4) is equal to 4 raised to the (1/2). 1/2 as an exponent is between 0 and 1 and it means to take the square root.
So, 4^(1/2) = 2 (or -2)
Answer : The rate of depreciation is, $16000
Step-by-step explanation :
Formula used to calculate the rate of depreciation is:

Given:
Purchase price of asset = $15000
Salvage value = $7000
Estimate life asset = 3 years
Now put all the given values in the above formula, we get:

Deprecation rate = $16000
Therefore, the rate of depreciation is, $16000
Assuming she set up the problem vertically, she began subtracting from the left, instead if the right.
The answer is B.
This is because <span>any angle formed by two chords is equal to half the sum of intercepted arcs.</span>