Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + k; v = 10i + 7j + 8k; w = 2i + 4j + 5k
A. 63
B. 55
C. -57
D. -5
Answer: D
Mathematics
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For the given functions f and g, find the requested composite function value.f(x) = 
, g(x) = x2 + 9;
Find (g ? f)(-2).
A. 25
B. 
C. 
D. 13
Mathematics
Solve the equation.
+ 3 = 
+ 7
A. 
B. ?
C. 
D. 
Mathematics
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
2
A. 
B. 
C. 
D. 
Mathematics
Determine if the relation is a function. Assume x is the independent variable.
+ x = 9
A. Yes B. No
Mathematics