E) E=sin 160°.cos1 10° + sin 250°.cos 340° +tan 110°.tan 340°
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Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way