Evaluate using a number line.-1 + 4 
A. 5
B. -5
C. 3
D. -3
Answer: C
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Quake 1 has a reading of 4.9 on the Richter scale. ? A: Quake 2 has a magnitude of 6.6. How do the relative intensities of quakes 1 and 2 compare? ? B: Quake 3 is 3,162.28 times as intense as quake 1. What is the magnitude of quake 3? ? C: An aftershock following quake 1 was one tenth as intense as quake 1. What was the magnitude of the aftershock? ? Round your answers to one decimal place.
What will be an ideal response?
he temperature-humidity index I (or humidex, for short) is the perceived air temperature when the actual temperature is T and the relative humidity is h, so we can write I = f(T, h). The following table of values of I is an excerpt from a table compiled by the National Oceanic and Atmospheric Administration. For what value of T is f(T, 50) = 107?
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Convert to percent.1
A. 180% B. 0.18% C. 18% D. 1.8%
Simplify.
÷ 
? (
÷ 9) ÷ (8 - 9)
A. 0 B. 4 C. undefined D. 1