Determine the sum: 21.6 × 104 + 5.2 × 107. write your answer in scientific notation.

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?