Write the series in summation notation. Use the index i and let i begin at 1 in each summation.b3 + b4 + b5 + . . . + b14
A. 
B. 
C. 
D. 
Answer: B
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Write the number in scientific notation.0.00003184
A. 3.184 × 10-5 B. 3.184 × 104 C. 3.184 × 10-4 D. 3.184 × 105
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(5x + 7y)(5x - 7y)
A. 25x2 - 70xy - 49y2 B. 10x2 - 14y2 C. 25x2 + 70xy - 49y2 D. 25x2 - 49y2
Find an equation of the secant line containing (1, f(1)) and (2, f(2)).f(x) = 
A. y = (
- 9)x - 
+ 18
B. y = (-
- 9)x - 
+ 18
C. y = (-
+ 9)x + 
- 18
D. y = (
- 9)x + 
- 18
Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 492 ohms B. 477.5 ohms C. 473 ohms D. 480 ohms