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

Mathematics

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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

Mathematics

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

Mathematics

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

Mathematics

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

Mathematics