Solve the Problem. -A Circular Hole Is Filled with Concrete to Make a to Make

question 13

Multiple Choice

Solve the problem.
-A circular hole is filled with concrete to make a footing for a load-bearing pier. The hole measures 18 inches across and requires 2.1 bags of concrete in order to fill it to ground level. What is the
Depth of the hole? Round your answer to the nearest inch. (One bag of concrete, when mixed with
The appropriate amount of water, makes 1800 in.3 of material.)

• A) 19 in.
• B) 21 in.
• C) 15 in.
• D) 12 in.

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Definitions:

Cognitive Development

The process by which individuals acquire and evolve their cognitive abilities, including thinking, problem solving, and decision making, across the lifespan.

Formal Operational

refers to the final stage in Piaget's cognitive development theory, where individuals develop the ability to think abstractly and logically.

Centration

A cognitive limitation in early childhood, where the focus is on one aspect of a situation while ignoring others.

Preoperational

A stage in Piaget's theory of cognitive development, occurring from ages 2 to 7, where children begin to engage in symbolic play and learn to manipulate symbols but do not yet understand concrete logic.