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 = 
to encode the message CARE.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the product.(r - 11)2
A. r2 - 22r + 121 B. r + 121 C. r2 + 121 D. 121r2 - 22r + 121
Mathematics
Express the radical in simplest form, rationalize denominators, and perform the indicated operations.8
+ 2x
A. 66x
B. 66
C. (8
+ 10
)x
D. 10x
Mathematics
Factor by grouping.20x2 - 24xy + 15xy - 18y2
A. (4x - 3y)(5x - 6y) B. (4x + 3)(5x - 6) C. (20x + 3y)(x - 6y) D. (4x + 3y)(5x - 6y)
Mathematics
Solve the problem.Inclusive of a 6.8% sales tax, a diamond ring sold for $2029.20. Find the price of the ring before the tax was added. (Round to the nearest cent, if necessary.)
A. $1891.21 B. $137.99 C. $2167.19 D. $1900
Mathematics