Which of the following expressions is a fourth root of unity?

a.) - 1

b.) i

c.) - i

d.) all of the above

A student measures an angle that turns through 29/360 of a circle. The student says the angle measures 29°. Is the student correct or incorrect and why?

Consider the equation 22+3x/3x+7=2 How do you begin isolating the variable x to one side of the equation?

How many 12-inch rulers will be about the same length as a bike

What times what equals 57

Solve the equation. 2x + 4 = 3x - 2 6 7 3 - 2

Francesca is buying a sterreo system for $196. She wants to pay for it in four equal monthly installments. What is the amount she will pay each mounth?

Lisa wants to use her calculator to square a two-digit positive integer, but she accidentally enters the tens digit incorrectly.

Suppose you have a bag of 25 marbles and 3 of the marbles are white. If you choose one without looking, what is the probability you choose a white marble? Write this probability as a percent. Use a word or phrase to describe this probability.

What is the difference between statistical and non statistical questions

Which equation shows an example of the associative property of addition? (-7 + 1) + 71 = - 7 + (i + 78) (-7 + 1) + 7i = 71 + (-7i+1) 71% (-77 + 1) = (71-71) + (7ix) (-71 + 1) + 0 = (-71 + 1)