A number sentence is shown. The box stands for a missing digit.

61,239+13,850+6,□92=81,381

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

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

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64