Multiply mentally.(-a2 - 13)2
A. a4 + 26a2 + 169
B. -a4 + 26a2 + 169
C. a4 - 26a2 + 169
D. a4 + 169
Answer: A
Mathematics
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A. 100x2 + 70x B. 100x13 + 7x3 C. 100x13 - 70x9 D. 100x13 + 70x9
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Perform the indicated operations. Write the answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
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Write the decimal number in words.1.8
A. one and eight hundredths B. one and eight tenths C. one and eight millionths D. one and eight thousandths
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Use the given matrices to compute the given expression.Let B = 
. Find -3B.
A. 
B. 
C. 
D. 
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