Find an equivalent system of equations for the following system: 2x + 4y = 4 −5x + 5y = 5

2x + 4y = 4
−3x + y = −1

2x + 4y = 4
7x + 5y = −1

2x + 4y = 4
7x − y = 5

2x + 4y = 4
7x − y = −1

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

Drag statements and reasons to each row to show why the slope of the line between d and e is the same as the slope between e and f, given that triangles a and b are similar.