If photocopier is purchased for $6,200 and depreciates in value by 15% per year. Which equation best describes the value of the photocopier in t years?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Shared decision making is always a positive strategy to take

Measure a and b and find their sum. how are the angles related?