question 7

which of the following equations is correctly calculated?

-36 \div 4 = 9

(-2)(-7) = -14

81 \div (-9) = -9

4(12) = -48

Question

question 7

which of the following equations is correctly calculated?

-36 \div 4 = 9

(-2)(-7) = -14

81 \div (-9) = -9

4(12) = -48

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Integer Division", "Integer Multiplication" ], "new_concepts": [], "current_concepts": [ "Integer Division", "Integer Multiplication", "Signed Numbers" ] } ## Evaluate each equation using sign rules $$ \begin{aligned} &-36 \div 4 = -9 \quad (\text{Incorrect, given as } 9) \ &(-2)(-7) = 14 \quad (\text{Incorrect, given as } -14) \ &81 \div (-9) = -9 \quad (\text{Correct, positive divided by negative is negative}) \ &4(12) = 48 \quad (\text{Incorrect, given as } -48) \end{aligned} $$

(A) $-36 \div 4 = 9$

(B) $(-2)(-7) = -14$

(C) $81 \div (-9) = -9$

(D) $4(12) = -48$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Integer Division" ] }

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Evaluate each equation using sign rules

Answer: