Write the following sentence using mathematical symbols.
Twice x, plus 4, is the same as -5.

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0