Which of the following systems is dependent?

x - y = 2 and x + y = - 2

x - y = 2 and - 2x + 2y = - 4

x - y = 2 and 3x - 3y = 2

x - y = 2 and - x - y = - 2

What is cot (ZB) ? Reduce fractional answers to lowest terms.

Simplify 25x^2/2x+6•2/5x

A california condor has a 114 inch wingspan. How many feet is that.

How do you convert fractions to decimals 5/7

Find the area of a regular pentagon with side equal to 3 and apothem equal to k. 1.5k 7.5k 12k

A right triangle has legs that are 19 in. and 23 in. What is the area of the triangle

What equation results from completing the square and then factoring x2+4x=12

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?