X+3y-z=2

x+y-z=0

3x+2y-3z=-1

Swaziland has the highest HIV prevalence in the world : 25.9% of this country's population is infected with HIV. The ELISA test is one of the first and most accurate tests for HIV. For those who carry HIV, the ELISA test is 99.7% accurate.

If 28 and 45 are the leg what is the length of hypotenuse

Three men and seven women are waiting to be interviewed for jobs. If they are all selected in random order, find the probability that no man will be interviewed until at least two women have been interviewed. The probability is nothing.

A builder cuts a rectangular hole in a ceiling to install an exhaust fan. The width is 3 in. less than the length and the area is 180 in². Find the length and width of the hole.

Solve the inequality. 5 (a - 5) > 25 a 30 a > 5 a > 10

5.4 miles is distance how many miles in a 250 day work week

The function f (x) = x2. The graph ofg (x) is f (x) translated to the left 6 units and down 5 units. What is the functionrule for g (x) ?

Which of the following statements is true? A. Both the square root of 15 and the square root of 0.001 are rational. B. Both the square root of 15 and the square root of 0.001 are irrational. C.

Using base ten blocks subtraction

A gift shop is running an in-store special. Customers can buy any 5 t-shirts for $69.90. What is the cost of 8 t-shirts?