Use the quadratic formula to solve the given equation.x2 - 
x = - 
A. {
, 
}
B. {
, 
}
C. 
D. 
Answer: B
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Find the sum, if it exists.13 + 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. Does not exist
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Find the common difference d and the nth term an of the arithmetic sequence with the specified terms. 3rd term is 13; 8th term is 33
A. d = 4; an = 4n + 5 B. d = 8; an = 8n + 9 C. d = 5; an = 5n + 4 D. d = 4; an = 4n + 1
A plane is flying with an airspeed of 245 miles per hour with heading 276.2°. The wind currents are running at a constant 47.2 miles per hour in the direction 266.1°. Find the ground speed and true course of the plane. ? Apply the rules regarding the use of significant digits after all computations are complete. ?
A. 292 mph with heading 274.6° B. 302 mph with heading 274.6° C. 292 mph with heading 273.8° D. 292 mph with heading 294.6° E. 302 mph with heading 294.6°