Solve for the requested variable.y varies directly as x, and y = 5 when x = 4. Find y when x = 16.
A. y = 20
B. y = 
C. y = 
D. y = 
Answer: A
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Solve the problem.The graph shows the relationship between current I and resistance R if the voltage is fixed. Find the current if the resistance is 1.6 ?.
A. 2.6 A B. 2.8 A C. 3.2 A D. 3.0 A
Solve the problem.Two recording devices are set 3600 feet apart, with the device at point A to the west of the device at point B. At a point on a line between the devices, 200 feet from point B, a small amount of explosive is detonated. The recording devices record the time the sound reaches each one. How far directly north of site B should a second explosion be done so that the measured time difference recorded by the devices is the same as that for the first detonation?
A. 1241.22 ft B. 1788.85 ft C. 425 ft D. 7375.64 ft
Replace the ? with < or >.661,000 ? 0.0661
A. > B. = C. <
Referring to triangle ABC, find the area of the triangle.
?
?
Round to three significant digits.
?
A. 392 inches2 B. 400 inches2 C. 406 inches2 D. 396 inches2 E. 402 inches2