These are all true or false : 1. complex numbers have a real part and an imaginary part.
2. if a quadratic equation has complex roots, you cannot use factoring to find the solutions
3. when using the quadratic equation, you always have to simplify the radical as much as possible
4. if the discriminant is -22, the formula can't be simplified further

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

Solve for n? [tex]z = \frac{3}{4} mn[/tex]