Solve the inequality by the test-point method. Write the solution in interval notation.x2 + 10x + 25 ? 0
A. (-?, -5] ? [-5, ?)
B. {5}
C. [5, ?)
D. {-5}
Answer: D
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On a certain island chain, the number of species present S is related to the area of the island. The relationship is given by
,
where A is the area of the island measured in square miles. Which one of the following island areas will have 16 species present (rounded to the nearest whole number)?
A. 16 square miles B. 29,020 square miles C. 21 square miles D. 29,263 square miles
Determine whether the sequence of vertices is an Euler circuit.
A ? B ? C ? A ? E ? C ? D ? E ? F
A. Yes B. No
Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 52,600 ; no B. Estimate: 52,500 ; yes C. Estimate: 52,600 ; yes D. Estimate: 52,500 ; no
Determine the coordinates of the points shown. Tell in which quadrant the point lies. Assume the coordinates are integers.
A. (1, 3); quadrant I B. (1, 6); quadrant I C. (1, 3); quadrant II D. (1, 6); quadrant II