Solve the quadratic formula for (5x+3)(5x-3)=19X

Must show all workings

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28