Use a graphing calculator or spreadsheet software to solve 4x + y + z = 1 8x - 4y - 7z = 2 5y + 9z = 3 using matrices.

If x - 1 is a factor of x3 - kx2 + 2x, what is the value of k?

You buy a pair of jeans at a department store. Jeans 39.99 Discount - 10.00 Subtotal 29.99 Sales tax 1.95 Total 31.94 a. What is the percent of discount to the nearest percent? The percent of discount is ___%. b.

4. In an electrical circuit it is known that the voltage V varies as the current I (ie. that V is directly proportional to 1). It is also known that V = 36 when I = 8. a Find a formula for V in terms of I. b Find V when I = 14. с Find / when V = 27.

0.3 as a fraction in simplest form

How many distinct pairs of disjoint non-empty subsets of A are there, the union of which is all of A? A {0,4,5,7}

What is the height of the cylinder in the diagram? Round your answer to the nearest whole number.

Safeway is selling cereal at $10 for 4 boxes. What is the cost per box?

the building is 1050 feet tall. sally built a scale model of the building. how tall is the model if she used the scale 1 centimeter=35 feet?

The floor of our classroom is 50 feet by 75 feet. What is the area of our floor?

Todd is attempting to predict how much money his furniture company will make based on the amount raw materials the company currently has at its disposal.