When i square - 4 it says the answers - 2i whats the i stand for

Which of the following is the slope of a line that is perpendicular to y = - 1/3x+4

Evaluate g (x) = 1.873 - 0.0034x + 0.5 for x = 1 and x = 2.

Which statements about the area of the faces of the triangular prism are true? Select all that apply. Area of face A = 112 m2. Area of face B = 60 m2. Area of face C = 140 m2. Area of face E = area of face D. Area of face A = area of face C.

At the beginning of year 1, Lisa invests $500 at an annual compound interest rate of 3%. She makes no deposits to or withdrawals from the account.

Match the following equations with the conic sections formed by them. 1. x 2 + y 2 - 4x + 6y - 5 = 0 hyperbola 2. x 2 - 6y = 0 circle 3. 4x 2 + 9y 2 = 1 ellipse 4. 7x 2 - 9y 2 = 343 parabola

Rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about an axis lying in its plane. True or false?

A city's population, P (in thousands), can be modeled by the equation P = 130 (1.03) ^x where x is the number of years after January 1, 2000. For what value of x does the model predict that the population of the city will be approximately 170,000?

Alexandra wants to make trail mix. She has 5/8 of a cup of shredded coconut. Each batch of trail mix requires 1/4 of a cup of shredded coconut. If she has enough of the other ingredients, how much trail mix can Alexandra make?

Find three consecutive even integers, such that 9 times of first integer is 8 more than the sum of second and third integers

What is the value of the expression? 4 300 + 3 - 8 • 2 A. 746 B. 608 C. 365 D. 296