Solve system by substitutition or elimination.

9x-8x=9

-18x+16y=-18

The center of an ellipse is located (3,2). One focus is located at (6,3) and its associated directrix is represented by the line x=11^1/3. Given the standard form of the equation of an ellipse, what are the values of h, k, a, and b?

When do I use - b/2a?

1 - Evaluat ((4^2) ^-1) A. 1/2 B. 1/4 C. 1/8 D. 1/16 2 - What is the value of the expression? (3/7) ^0 A. 0 B. 3/7 C. 1 D. 30/7

What is the completely factored form of 4x^5 - 256x^3?

you buy 50 of your favorite songs from songs from a website that charges $.99 for each song what is the cost of 50 songs? Use mental math

What is the simpliest form of 56 1/4%

What number is it if you subtract 2 from a number and the new number and its absolute value are not equal?

The area of a triangular sign is 48 ft. If the base of the sign is 16 feet, what is the height of the sign? The height of the sign is feet.

Susan goes to her doctor because she thinks she is ill. (a) What is H0, Ha? (b) Type I error? Type II error? (c) Which of the errors are more serious and why?

Use absolute value to describe the relationship between a negative credit card balance and the amount owed.