Find the angle between v and w. Round to one decimal place, if necessary.v = 3i + 2j + k and w = 4i + 8j + 2k
A. 61°
B. 68.8°
C. 29°
D. 82.8°
Answer: C
Mathematics
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b + 
a and 
b - 
a are orthogonal.
What will be an ideal response?
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Use fractal geometry to determine the answer.Consider a square with edges of length five. Suppose that four of these squares are placed edge to edge to form a new larger square. What is the scale factor 
?
A. 1 B. 4 C. 2 D. 8
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Solve the problem.In a certain coastal basin, the sea water contains 3.6 grams of salt per 1000 milliliters of water. How many grams of salt would be in 5 liters of the sea water.
A. 180 g B. 18 g C. 0.18 g D. 1800 g
Mathematics
Find the domain of the rational function.f(x) = 
A. all real numbers B. {x|x ? 0, x ? 1} C. {x|x ? -1, x ? 1} D. {x|x ? -1, x ? 1, x ? -6}
Mathematics