QQuestionMathematics
QuestionMathematics
# Question 15
The volume of a 9 -inch cube is $\qquad$ .
O a. 243 cu yd
O b. 729 cu in
O c. 818 sq in
O d. 1,243 cu in
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Answer
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Step 1:Let's solve this step by step:
Step 2:: Understand the given information
- We have a cube with a side length of 9 inches - We need to calculate the volume of this cube
Step 3:: Recall the volume formula for a cube
- Where $$s$$ is the length of one side
- The volume of a cube is calculated by cubing the length of one side
Step 4:: Calculate the volume
- $$V = 729$$ cubic inches
- Volume = 9^{3}
Step 5:: Check the given options
- Looking at the options, we see that 729 cu in is option b.
Final Answer
Key insights: - Volume of a cube is always the side length cubed - Always pay attention to the units (cubic inches in this case) - Carefully calculate and match with the given options
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