Solve the equation by making an appropriate substitution.x4 - 7x2 + 6 = 0
A. {-1, 1, -
, 
}
B. {1, 6}
C. {1, 
}
D. {-1, 1, -i
, i
}
Answer: A
Mathematics
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Use the order of operations to simplify the expression.
÷ 
A. 
B. 
C. 
D. 
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Find the triple scalar product (u x v) ? w of the given vectors.u = 2i - 4j + 3j; v = -3i - 8j + 9k; w = 7i - 6j + 5k
A. 562 B. -62 C. -110 D. 166
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Find the limit.
- 
A. 0 B. -? C. Does not exist D. ?
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Solve the problem.Suppose you purchase a 30-year U.S. savings bond with an APR of 4.5%. The face value of the bond is $12,000. Find the purchase price of the bond.
A. $5454.55 B. $5155.75 C. $5106.38 D. $5057.96 E. $4800
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