Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + k; v = 2i + 3j + 9k; w = 4i + 7j + 6k
A. -23
B. 59
C. -67
D. -19
Answer: D
Mathematics
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Solve the problem.An initial investment of $650 is appreciated for 2 years in an account that earns 3% interest, compounded continuously. Find the amount of money in the account at the end of the period.
A. $690.19 B. $1071.67 C. $1266.03 D. $2913.10
Mathematics
Use the graph of f(x) = 
x - x5 and translations of graphs to sketch the graph of the equation. 
y = -f(x - 2) - 1
A. 
B. 
C. 
D. 
Mathematics
Use the quadratic formula to solve the equation. Simplify any radicals.2x2 - 2x + 7 = 9x + 5
A. 
B. 
C. 
D. 
Mathematics
Express the sum using summation notation.3 + 6 + 9 + ... + 21
A. 
B. 
C. 
D. 
Mathematics