Find all the roots of the equation x4 - 2x3 + 14x2 - 18x + 45 = 0 given that 1 + 2i is one of its roots.

Ralph has 4 meters of taffy that he wants to split evenly between his 3 best friends. How many centimeters of taffy will each of his 3 friends get if the taffy is divided equally. Write your answer as a fraction.

The library at school is organized By fiction and nonfiction books. There are 3 non-fiction books for every 7 fiction books how many total books are there in the library had 240 nonfiction books

1. Determine the value of 'p' in the equation 4p = 48 2. Simplify the fraction 60/144 3. What is the surface area of a cube with side lengths of 3cm?

How many different combinations of 6 objects are there taken 3 at a time

F x + y is rational, must x and y each be rational? A) Yes; because the sum of rationals is rational. B) No; because the sum of irrationals is always irrational. C) No; because x and y could be additive inverses of each other.

Find the area of the circle when C = π/6. Give your answer in terms of π.

What is the solution to the system of equations? 4x-8y=-16 x-2y=-8 a. Use the substitution method to justify that the given system of equations has no solution. b. What do you know about the two lines in this system of equations?

Of the items manufactured by a certain process, 20% are defective. Of the defective items, 60% can be repaired. a. Find the probability that a randomly chosen item is defective and cannot be repaired. b.

Find the value of x. (2x + 30°

Whats 9*2? i cant figure it out even with a calculator