1. What is the slope of the line given by the equation 21x - 3y + 18 = 0?
2. Which of the following is the least common denominator for the expression below?
3. What number can you add to the numerator and denominator of to get ?
4. If x + y = 13 and 2y = 16, what is the value of x?
5. If the inequality |m| > |n| is true, then which of the following must be true?
6. Given that is the equation of a line, at what point does the line cross the x axis?
7. The figure below shows the plan for the ground floor of a townhouse. The thickness of the walls should be ignored when answering the questions. The dimensions shown are in feet, and each region is rectangular.
What is the area, in square feet, of the living room?
8. The figure below shows the plan for the ground floor of a townhouse. The thickness of the walls should be ignored when answering the questions. The dimensions shown are in feet, and each region is rectangular.
What is the perimeter, in feet, of the ground floor of the townhouse?
9. Three years ago, the population of a certain species of bird was calculated at 20 birds per acre. This year, a biologist recorded a total of 47 birds in an area equal to 3.25 acres. By about what percentage has the bird population in the biologist's sample decreased over the last 3 years, to the nearest tenth?
10. A right triangle that has sides measured in the same unit of length is shown below. For any such triangle, (tan α)(sin β) is equivalent to: