Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? 1. -15m = -4m 2. -7m - 8 = m - 4 3. -3m - 8 = 4 - m 4. m - 4 = -7m - 8 5. -8 - 7m = -4 + m 6. -8 - 3m = 4 - m

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

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place