Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual order.Use the coding matrix A =  and its inverse A-1 =  to decode the cryptogram   .

A. HELP_THEM
B. GOOD_LUCK
C. STAY_CALM
D. LOOK_DOWN


Answer: B

Mathematics

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What will be an ideal response?

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Find an equation of the line described. Through (-7, -1), parallel to the x-axis

A. x = -1 B. y = -7 C. y = -1 D. y = -7x - 1

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Give all possible rational zeros for the polynomial.f(x) = 2x3 - 5x2 + 7x - 23

A. ±1, ±2, ±23
B. ±1, ±2, ±23, ± 
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Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(3x - 8)(x + 5)

A. 3x2 - 40x + 7 B. 3x2 + 5x - 40 C. 3x2 + 7x + 7 D. 3x2 + 7x - 40

Mathematics