Graph.f(x) = 
x
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use the vertex formula to find the vertex of the quadratic function.f(x) = 5x2 + 10x - 4
A. (1, 11) B. (-1, -9) C. (2, 36) D. (-2, 6)
Mathematics
Solve the problem.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 1.25 ohm when the diameter is 1 mm and the length is 250 cm, what is the resistance when the diameter is 2 mm and the length is 720 cm?
A. 225 ohm B. 0.9 ohm C. 1.8 ohm D. 180 ohm
Mathematics
Subtract. ? (83°36') - (72°66') ?
A. 10°30' B. 31°10' C. 10°31' D. 11°31' E. 30°10'
Mathematics
Solve the inequality and draw a number line graph of the solution.2 ? x + 5 < 13
A. 
B. 
C. 
D. 
Mathematics