Simplify the Expression $\sqrt { 63 x ^ { 2 } y }$

question 47

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $\sqrt { 63 x ^ { 2 } y }$

• A) \(3 x \sqrt { 7 y }\)
• B) \(3 x ^ { 2 } \sqrt { 7 y }\)
• C) \(3 x y ^ { 2 } \sqrt { 7 }\)
• D) \(3 x y \sqrt { 7 }\)

---

Definitions:

Net Present Value

A method used in capital budgeting to evaluate the profitability of an investment, calculated by subtracting the initial investment from the present value of cash inflows over a period of time.

Rate of Return

The percentage of profit or loss on an investment over a specified period.

Required Rate

Often used in reference to the minimum acceptable return on investment or the minimum discount rate used in net present value calculations.

Internal Rate of Return

A metric used in financial analysis to estimate the profitability of potential investments, calculated as the rate of return that makes the net present value of all cash flows from a particular project equal to zero.