<span>Yes it is true that a continuous function that is never zero on an interval never changes sign on that interval. This is because of ever important Intermediate Value Theorem.</span>
Answer:
i think its A
Step-by-step explanation:
1.981: One and nine hundred eighty-one thousandths
Answer:
A i guess
......not sure......
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if its wrong plz tell me ok so i can learn my mistake