Graph the solution set of the system of inequalities or indicate that the system has no solution.

A.

B.

C.

D. No solution


Answer: D

Mathematics

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Find first four terms of the indicated expansion by use of the binomial series.(1 + x)-1/2

A. 1 + x + x2 + x3 + . . .
B. 1 + x - x2 + x3 - . . .
C. 1 - x + x2 - x3 + . . .
D. 1 - x + x2 - x3 + . . .

Mathematics

Write the following as a base-ten numeral.8 ? 100 

A. 800 B. 8 C. 0 D. None of these

Mathematics

Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. If the force of attraction is 9 lb when the masses are 2 ft apart, what is the attraction when the masses are 6 ft apart?

A. 1 lb B. 4 lb C. 2 lb D. 3 lb

Mathematics

Solve. If necessary, round to the nearest tenth.A flagpole casts a shadow of 34 feet. Nearby, a 7-foot tree casts a shadow of 5 feet. What is the height of the flagpole?

A. 24.3 ft B. 1,190 ft C. 1 ft D. 47.6 ft

Mathematics