Simplify each sum or difference. state any restrictions on the variables.
19) (-3x)/(x^2 - 9) + 4/(2x-6)

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52