Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the nail is 25 
.
A. m
B. cm
C. km
D. mm
Answer: D
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In the LORAN (LOng RAnge Navigation) radio navigation system, two radio stations located at A and B transmit simultaneous signals to a ship or an aircraft located at P. The onboard computer converts the time difference in receiving these signals into a distance difference |A| - |B|, and this, according to the definition of a hyperbola, locates the ship or aircraft on one branch of a hyperbola (see the figure). Suppose that station B is located L = 480 mi due east of station A on a coastline. A ship received the signal from B 1280 microseconds (?s) before it received the signal from A. Assuming that radio signals travel at a speed of 1000 ft/?s and if the ship is due north of B, how far off the coastline is the ship? Round your answer to the nearest mile.
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Use the bar graph to answer the question.The bar graph illustrates the numbers of certain grades earned in Mathematics 100. How many grades of D were earned?
A. 3 B. 10 C. 5 D. 8
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.(x + 3)(x - 4)(x - 7) > 0
A. (-?, 4)
B. (7, ?)
C. (-?, -3) ? (4, 7)
D. (-3, 4) ? (7, ?)
For the compound inequality, give the solution set in both interval and graph forms.x > 4 or x ? 5
A. (4, 5]
B. (-?, 4) ? [5,?)
C. (4, ?)
D. (-?, ?)