Find the reciprocal.

A.
B. 13
C.
D.


Answer: D

Mathematics

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Find the product. Use the FOIL method.(4x - 6)(x + 10)

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Find the db gain of an amplifier whose input voltage is 1.2 volts and whose output voltage is 19 volts. Round to two decimal places, if necessary. ? 

A. 1.2 db B. 55.24 db C. 23.99 db D. -55.24 db E. 3 db

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Solve the problem.Because of material shortages, it is increasingly expensive to produce 6.0L diesel engines. In fact, the profit in millions of dollars from producing x hundred thousand engines is approximated by  where  Find the point of diminishing returns.

A. (2.75, 106.26) B. (3.67, 16.63) C. (3.67, 62.26) D. (3.67, 106.26)

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Use the fundamental counting principle to count the number of outcomes. A sports shop sold tennis rackets in 3 different weights, 2 types of string, and 4 grip sizes. How many different rackets could they sell?

A. 18 B. 24 C. 20 D. 9

Mathematics