Question:
What is the value of \( 3x^2 - 1.8x + 0.3 \) for \( x = 0.6 \)?
What is the value of \( 3x^2 - 1.8x + 0.3 \) for \( x = 0.6 \)?
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When evaluating expressions, substitute the value of \( x \) and simplify step by step.
Updated On: Oct 3, 2025
- -0.3
- 0
- 0.3
- 1.08
- 2.46
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The Correct Option is C
Solution and Explanation
Step 1: Substitute \( x = 0.6 \) into the expression.
\[ 3(0.6)^2 - 1.8(0.6) + 0.3 = 3(0.36) - 1.08 + 0.3 \] Step 2: Simplify the expression.
\[ 3(0.36) = 1.08, \quad -1.8(0.6) = -1.08 \] Now combine the terms: \[ 1.08 - 1.08 + 0.3 = 0.3 \] Final Answer: \[ \boxed{0.3} \]
\[ 3(0.6)^2 - 1.8(0.6) + 0.3 = 3(0.36) - 1.08 + 0.3 \] Step 2: Simplify the expression.
\[ 3(0.36) = 1.08, \quad -1.8(0.6) = -1.08 \] Now combine the terms: \[ 1.08 - 1.08 + 0.3 = 0.3 \] Final Answer: \[ \boxed{0.3} \]
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