Which expression is equivalent to (2r² + r - 1) - (3r² + 4r - 5) ?
A.) -r² - 3r + 4
B.) -r² + 5r - 6
C.) 5r² - 3r + 4
D.) 5r² + 5r - 6
The gravitational potential energy of an object is given by the formula P = mgh.
Which equation is correctly solved for the height, h?
A.) h = P + mg
B.) h = P - mg
h = ----
D.) h = Pmg
Algebra 1 State Test Practice Archives