In circle O, tangent MN and secant MPQ are drawn to the circle from exterior point M. If MP = 6 and PQ = 8 then which of the following is the length of MN ?
(1) 7
(2) 42
(3) 4 square root 3
(4) 2 square root 21

Determine whether the angles in each given pair are coterminal. 744°, -336°

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9