Determine the scalar c so that the vectors v and w are orthogonal or parallel as indicated.v = 
, w = 
; orthogonal
A. c = 3
B. c = -3
C. c = 4
D. c = -4
Answer: B
Mathematics
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Determine where f is discontinuous.
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Mathematics
The height (in feet) of a certain kind of tree is approximated by 
where t is the age of the tree in years. Estimate the age of a 70-ft tree. Round your answer to the nearest hundredth.
?
__________ years
Fill in the blank(s) with the appropriate word(s).
Mathematics
Factor completely, if possible.y2 - 81
A. (y + 81)(y - 81) B. (y - 9)(y - 9) C. (y + 9)(y - 9) D. (y2 + 9)(y2 - 9)
Mathematics
Simplify the expression.Write log6(x - 7) + log6(x + 4) as a single logarithm.
A. log6
B. log6(x2 - 3x - 28)
C. log6(x2 + 3x + 28)
D. log6(-11)
Mathematics