Determine whether the statement is true or false.Some rational numbers are integers.

A. true
B. false

Answer: A

Mathematics

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Find the value.If F(x, y) = , find Fx(-4, -9) and Fy(-4, -9).

A. Fx(-4, -9) = - , Fy(-4, -9) = 
B. Fx(-4, -9) = , Fy(-4, -9) = 
C. Fx(-4, -9) = , Fy(-4, -9) = - 
D. Fx(-4, -9) = , Fy(-4, -9) = - 

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Mathematics

Verify the identity.sec 4 x - tan 4 x = sec 2 x + tan 2 x

What will be an ideal response?

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Mathematics

We have encoded a message by assigning the numbers 1 - 26 to the letters a - z of the alphabet, respectively, and assigning 27 to a blank space. We have further encoded it by using an encoding matrix. Decode this message by finding the inverse of the encoding matrix and multiplying it times the coded message.The encoding matrix is A =  and the encoded message is 88, 103, 115, 84, 99, 104, 41, 43, 46, 40, 49, 45, 86, 91, 113, 52, 61, 65.

Fill in the blank(s) with the appropriate word(s).

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Mathematics

Find the LCD for the list of rational expressions. , 

A. (x + 2)(x - 4)(x + 1) B. (x - 2)(x + 4)(x + 1) C. (x + 4)(x + 1) D. (x - 2)(x + 4)

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Mathematics