Simplify.[5 - 2(-3)]2
A. 121
B. 0
C. 1
D. 81
Answer: A
Mathematics
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Find the principal unit normal vector N for the curve r(t).r(t) = (4 sin t)i + (4 cos t)j + 8k
A. N = (-cos t)i - (sin t)j B. N = (sin t)i + (cos t)j C. N = (-sin t)i - (cos t)j D. N = (-sin t)i + (cos t)j
Mathematics
Multiply the expressions.(p + 5q)(p - 5q)
A. p2 - 10q2 B. p2 - 10pq - 25q2 C. p2 - 25q2 D. p2 + 10pq - 25q2
Mathematics
Solve.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Determine the distance, w, between the outside walls. Round to one decimal place if necessary.A = 10 m
A. 80 m B. 11 m C. 8.95 m D. 17.9 m
Mathematics
Determine the distance between the pair of points.(-1, -1) and (1, 7)
A. 60
B. 2
C. 60
D. 6
Mathematics