How do you solve x^4-16x^2-720=0

Which number is 1,000 times as great as 0.057?

Evaluate the function at the given values 2y (4x^2 - 2) + 6x (4y^2 - 4) At x = - 1 Y = 4

Mary wanted to know the amount of time7th grade students spend on homework each week, so she surveyed 20 students at random. The results are shown below. There are 164 students in the 7th grade.

A set of equations is given below: Equation C: y = 6x + 9 Equation D: y = 6x + 2 How many solutions are there to the given set of equations? One solution No solution Two solutions Infinitely many solutions

Tonya is at least 14 years old. Which inequality best represents the statement? Let x = Tonya's age.

You live 3 1/2 miles from school. In the morning, you walk 1/4 mile directly toward school to take the bus. After school, you walk home the same distance when the bus drops you off. How many miles do you ride the bus to and from school each day?

The equation 8w+4 = 76 models how many weeks, w, it takes a student to save for a new video game. If the student saves the same amount of money each week, how many weeks does it take the student to save for the new video game?

The sum of two numbers is 50 and their difference is 4

What is 5 + (3y x 5x)

What is the minimum possible value for y in the equation y = x^2 + 12x + 5?