Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x2 + 3x ? 0
A. [-3, 0]
B. (-?, -3]
C. (-?, -3] ? [0, ?]
D. [0, ?]
Answer: C
Mathematics
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Identify the coefficient of the given term.-7.2y
A. -7.2y B. 7.2 C. -7.2 D. -1
Mathematics
Determine the domain and the range of the function.f(x) = x2 + 4x - 5
A. domain: range: {x|x ? 2} range: {y|y ? 9} B. domain: range: {x|x ? 2} range: {y|y ? -9} C. domain: all real numbers range: {y|y ? -9} D. domain: all real numbers range: {y|y ? 9}
Mathematics
Solve by completing the square to obtain exact solutions.x2 - 4x - 21 = 0
A. -7, 3
B. -i
, i
C. -18, -3
D. 7, -3
Mathematics
Answer the question.Which number is larger?
A. 0.0099 B. 0.02
Mathematics