Solve the inequality.x2 + 9x ? 0
A. (-?, -9] or [0, ?)
B. [0, 9]
C. [-9, 0]
D. (-?, 0] or [9, ?)
Answer: A
You might also like to view...
Solve the problem.The surface area a of a cylinder is shown in the graph below. What is the radius r if the surface area is 20 m2?
A. 0.8 m B. 1.0 m C. 1.2 m D. 0.6 m
Solve the problem.A survey of 128 college students was done to find out what elective courses they were taking. Let A = the set of those taking art, B = the set of those taking basketweaving, and C = the set of those taking canoeing. The study revealed the following information.n(A) = 45n(A ? B) = 12n(B) = 55n(A ? C) = 15n(C) = 40n(B ? C) = 23n(A ? B ? C) = 2How many students were not taking any of these electives?
A. 36 B. 46 C. 38 D. 10
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The earth is approximately 92,900,000 miles from the sun. If 1 mile= 1.61 × 103 m, what is the distance to the sun in meters?
A. 5.7 × 10-10 m B. 1.50 × 1010 m C. 5.7 × 1010 m D. 1.50 × 1011 m
Evaluate the expression.7 + 
A. 
B. 
C. 
D. 