Determine whether the statement is true or false.The sum of two negative fractions is always a negative number.

A. True
B. False

Answer: A

Mathematics

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Find the indicated series by the given operation.Show that by differentiating term by term the expansion of  the result is the expansion for 

A. (1 + 2x - 3x2 + 4x3 - . . .) = -2(1 + 3x - 6x2 + . . . )
B. (1 - 4x + 6x2 - 8x3 + . . .) = -2( 2 - 6x + 12x2 - . . .)
C. (1 - 2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)
D. (2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)

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Mathematics

Find R1 if RT = 27 Kê and R2 = 5.1 Kê.


a. 21.9 Kê
b. 32.1 Kê
c. 78 Kê
d. 116 Kê
e. 121.9 Kê

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Mathematics

Determine if the given value is a solution to the equation.5k - 3 = 2

A. Yes B. No

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Mathematics

Express as a single logarithm, and, if possible, simplify.4 loga y + 5 loga z

A. loga (y4z5) B. loga (4y5z) C. loga (yz)9 D. loga (y5z4)

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Mathematics