Solve the formula for the indicated letter. Assume that all variables represent nonnegative numbers.x = 
for r
A. r = ±
B. r = ±
C. r = x + y
D. r = ±
Answer: D
Mathematics
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Solve the equation.- 
x = 25
A. -216 B. -225 C. -34 D. -200
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Find the value of the limit for the sequence given. Select the correct answer.
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Add.
A. 98 B. 108 C. 107 D. 109
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find -2A + 4B.
A. 
B. 
C. 
D. 
Mathematics