Write the expression without negative exponents.y = -5x-3 - x-2 + 2x-1 + 2x2 + 4x
A. y = - 
+ 
+ 
B. y = - 
- 
+ 
+ 2x2 + 4x
C. y = - 
- 
+ 
+ 
+ 
D. y = -5x1/3 - x1/2 + 2x2 + 6x
Answer: B
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and Vin = 0.3 V and Vout = 25 V, then Adb =
A. 38.4 db B. -76.8 db C. 76.8 db D. -38.4 db
Solve the problem.How many of the polygons below have nontrivial rotation of symmetry (i.e., a rotation symmetry other than 
A. 3 B. 5 C. 2 D. 4
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A. 
B. 
C. 
D. 
Find the real zeros, if any, of each quadratic function using the quadratic formula. List the x-intercepts, if any, of the graph of the function. h(x) = x2 - 4x + 20
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