What is the check digit, d, for the VISA number shown below?

4328 3103 2635 108d

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

41/2 - 1 1/3 what is the answer as a fraction?

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