Find the sum of the squares of the deviations from the mean for the given data. 7, 1, 1, 4, 7, 1, 7
A. 54
B. 7
C. 270
D. 4
Answer: A
Mathematics
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
Mathematics
Provide an appropriate response.If z - ln (2x + 3y) and x = re5; y = ser find(a) 
(b) 
What will be an ideal response?
Mathematics
Simplify. Write the answer using only positive exponents. Leave the answer in exponential notation.(3xy)2
A. 3xy2 B. 3x2y2 C. 9x2y2 D. 6 ? 2x ? 2y
Mathematics
Use the order of operations to simplify the expression.[36 - (4 + 6) ÷ 2] - [1 + 12 ÷ 3]
A. 23 B. 21 C. 33 D. 26
Mathematics