Add or Subtract

question 153

Multiple Choice

Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by
raising negative numbers to even powers.
-

• A) 0
• C) cannot simplify

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Definitions:

Hydrographs

Charts that show the flow rate of water over time at a specific point in a river or stream.

Peak Discharge

The maximum flow rate of water, such as within a stream or river, at a specific point following a storm or snowmelt.

Flash Flood

A rapid and extreme flow of high water into a normally dry area, or a rapid water level rise in a stream or creek above a predetermined flood level, typically caused by intense rainfall over a short duration.

Discharge

The flow of a fluid, such as water or gas, from a source, including the volume of fluid passing a point per unit of time in rivers or wastewater treatment plants.