Which event shattered the unity of the Democratic Party and provided the impetus for the formation of the Republican Party?

In which battle did momentum shift most decisively from the South to the North?

The researcher who emphasized the role of reinforcement in the environment to determine behavior was: 

Show supporting work on your paper.Solve the system of equations by substitution. (Note that if you solve using another method, you won’t get credit for the work)5x-2y=-1x+4y=35Please make sure you write neat and detailed work with all steps.Select “Yes” when you complete the answer on your paper.

Show supporting work on your paper.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red wire. Cable C requires 2 black, 1 white, and 2 red wire. They used 100 black, 110 white and 80 red wires. How many of each cable were made?  a) Set up a system of equations that represents the situation described.b) Write the augmented matrix that represents the system of equations in part a.   (You don’t need to solve)          Select “Yes” when you complete the answer on your paper.

BonusWhich of the following are allowable operations when the Gaussian elimination method is used to solve a system of linear equations?(i) A multiple of elements of one row may be added to the corresponding elements of any other row.(ii) Any two columns may be interchanged.(iii) All elements of any row may be squared.(iv) All of the elements of any row may be multiplied by any nonzero number.

Identify the potential positive and negative impacts of national screening programmes

What is the most common cause of falls in the elderly?

Which structure(s) allow urine to drain from the kidneys to the bladder?

What is the cause of poor nutrient absorption in cystic fibrosis?