Solve the quadratic inequality symbolically. Write your answer in interval notation.5x2 + 2x + 3 ? 0
A. 
B. 
C. No real solutions
D. All real numbers
Answer: D
You might also like to view...
Identify the type of surface represented by the given equation.
+ 
= 
A. Ellipsoid
B. Paraboloid
C.
| Hyperbolic paraboloid |
D. Elliptic cone
Determine an appropriate domain of the function. Identify the independent and dependent variables.A cylindrical water tank with a radius of 8 feet and a height of 73 feet is filled to a height of h. The volume V of water (in cubic feet) is given by the function g(h) = 64?h.
A. D = [0, 73] The independent variable is V. The dependent variable is h. B. D = [0, 4672?] The independent variable is V. The dependent variable is h. C. D = [0, 73] The independent variable is h. The dependent variable is V. D. D = [0, 64] The independent variable is h. The dependent variable is V.
New telephone lines must be installed to connect 9 cities (A, B, C, D, E, F, G, H and J). Due to government regulations, the only possible connections that are allowed are shown by the edges on the network below. The numbers on the edges indicate the cost (in millions of dollars) of each possible connection. The telephone company wishes to connect the cities in the cheapest possible way.
Using Kruskal's algorithm, which edge is chosen second to last?
A. DE B. BC C. AB D. EH E. none of these
Solve the problem.A church steeple casts a shadow 108 ft long, and at the same time a 9.0-ft post casts a shadow 7.0 ft long. How high is the steeple? Round to the nearest unit.
A. 111 ft B. 84 ft C. 8 ft D. 139 ft