Solve the system using Gaussian elimination. If (x, y, z) is the solution to the system, give the value of
.
?

?
A. -14
B. 90
C. -62
D. 14
E. -42
Answer: A
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Use the appropriate addition formula to find the exact value of the expression.tan
A.
B. 2 +
C. -2 -
D.
Select letters to represent the simple statements and write each statement symbolically by using parentheses then indicate whether the statement is a negation, conjunction, disjunction, conditional, or biconditional.It is not true that if you take your vitamins you will stay healthy.
A. ~p ? (~q); conditional B. ~(p ? q); negation C. ~p ? q; conditional D. ~(p ? q); negation
Sketch the vectors u and w with angle ? between them and sketch the resultant. = 2.85,
= 2.85, ? = 90°
A.
B.
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.( +
)(
-
)
A. 13
B. 10 - 2
C. 10 - 2
D. 7