Find the angle between the pair of vectors to the nearest tenth of a degree.
, 
A. 71.4°
B. 152.7°
C. 61.4°
D. 142.7°
Answer: D
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Solve the problem.Write an iterated triple integral in the order 
for the volume of the tetrahedron cut from the first octant by the plane 
.
A. 
B. 
C. 
D. 
Solve.r(r - 14) = -49
A. 49, 7 B. 7 C. -7 D. -7, 7
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 5(x2 + 3)(x2 + 6)2
A. -3, multiplicity 1, crosses x-axis; -6, multiplicity 2, touches x-axis
B. No real zeros
C. 
, multiplicity 1, crosses x-axis; -
, multiplicity 1, crosses x-axis;
, multiplicity 2, touches x-axis; -
, multiplicity 2, touches x-axis
D. -3, multiplicity 1, touches x-axis; -6, multiplicity 2, crosses x-axis
Simplify each side of the equation, if possible. Then solve the equation.-6b + 6 + 4b = -3b + 11
A. 11 B. 5 C. -11 D. -6