Refer to the graph of the function f(x). Provide an appropriate response.Find a value a such that f(a) = 2.
A. -1
B. 0
C. 1
D. 3
Answer: C
Mathematics
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Identify the equation as either an identity or not.
= 
A. Identity B. Not an identity
Mathematics
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics
Solve by the substitution method.0.2x + 0.9y = -3.2 x - 0.5y = 4
A. ? B. {(0.2, -0.4)} C. {(-4, 2)} D. {(2, -4)}
Mathematics
Solve.At a fixed temperature, the resistance R of a wire varies directly as the length l and inversely as the square of its diameter d. If the resistance is 0.63 ohm when the diameter is 1 mm and the length is 210 cm, what is the resistance when the diameter is 3 mm and the length is 1370 cm?
A. 0.457 ohm B. 1.37 ohm C. 152.222 ohm D. 95.9 ohm
Mathematics