Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + k; v = 7i + 8j + 4k; w = 6i + 2j + 9k
A. 55
B. 59
C. 69
D. -9
Answer: D
Mathematics
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Fill in the blank with one of the words or phrases listed below. 
A 
is a rate with a denominator of 1.
A. proportion B. ratio C. unit price D. unit rate
Mathematics
Subtract.123 - 124
A. 1 B. -1 C. 247 D. -247
Mathematics
Simplify by taking the roots of the numerator and the denominator. Assume all variables represent positive numbers.
A. 6x
B. 6x
C. 6x
D. x
Mathematics
Use the LCD to simplify and solve.
y - 2 = 
A. 3
B. - 1
C. 1
D. 
Mathematics