10. for each conditional, underline the hypothesis once and the conclusion twice.
a. if michele plays her viola, then she must put rosin on her bow.
b. class rank will be determined only if final exams are completed.

Step-by-step explanation:

The hypothesis follows the word "if". The conclusion follows the word "then". Sometimes you need to read carefully to determine which part is which. Also, sometimes it helps to rewrite the sentence in the "If ... then ..." form.

a. If Michele plays her viola, then she must put rosin on her bow.

The hypothesis is "Michele plays her viola"

The conclusion is "she must put rosin on her bow"

b. Class rank will be determined only if final exams are completed.

Rewrite the conditional above in the form "If hypothesis, then conclusion."

If final exams are completed, then class rank will be determined.

The hypothesis is "final exams are completed"

The conclusion is "class rank will be determined"

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