which expression is equivalent to $(st)(6)$?

$s(t(6))$
$s(x) \cdot t(6)$
$s(6) \cdot t(6)$
$6 \cdot s(x) \cdot t(x)$

Question

which expression is equivalent to $(st)(6)$?

$s(t(6))$
$s(x) \cdot t(6)$
$s(6) \cdot t(6)$
$6 \cdot s(x) \cdot t(x)$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Function Multiplication" ], "new_concepts": [], "current_concepts": [ "Function Multiplication", "Function Evaluation" ] } ## Apply the definition of function multiplication $$ (st)(x) = s(x) \cdot t(x) $$ ## Evaluate the combined function at the given value $$ (st)(6) = s(6) \cdot t(6) $$

(A) $s(t(6))$

(B) $s(x) \cdot t(6)$

(C) $s(6) \cdot t(6)$

(D) $6 \cdot s(x) \cdot t(x)$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Function Multiplication" ] }

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QUESTION IMAGE

Question

Explanation:

Apply the definition of function multiplication

Evaluate the combined function at the given value

Answer: