Indicate whether the graph represents a one-to-one function.
A. Yes
B. No
Answer: A
Mathematics
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Provide an appropriate response.The half-life of a radioactive substance is 65 years. If you start with some amount of this substance, what fraction will remain in 139 years?
A. 4.40 B. 0.01 C. 0.23 D. 0.05
Mathematics
Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.4i
A. 4(cos 90° + i sin 90°) B. 4(cos 180° + i sin 180°) C. 4(cos 270° + i sin 270°) D. 4(cos 0° + i sin 0°)
Mathematics
Write the inequality in interval notation.7 > x ? -5
A. (-5, 7) B. [-5, 7) C. [-5, 7] D. (-5, 7]
Mathematics
Find all values that make the expression undefined.
A. 2, 5 B. Never undefined C. 2 D. -2
Mathematics