Match the vector equation with the correct graph.
r(t) = (1 - t2)j + 3tk; -1 ? t ? 1
A. Figure 4
B. Figure 7
C. Figure 2
D. Figure 8
Answer: B
Mathematics
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Use front end rounding to round the number.There were 31,664 fans at the football game.
A. 40,000 fans B. 30,000 fans C. 41,000 fans D. 31,000 fans
Mathematics
Solve the problem.Two sound waves, producing the pressures 
and 
combine on a person's ear drum to produce the pressure 
Find the amplitude and phase shift for the total pressure.
A. A = 2.2, ? = 849.079 B. A = 2.2, ? = 0.9273 C. A = 5, ? = 849.079 D. A = 5, ? = 0.6435
Mathematics
Find the least common multiple of the given polynomials.x2 - 5x - 24, x2 - 9, x2 - 11x + 24
A. (x + 8)(x + 3)(x - 3) B. (x + 8)(x - 3)2 C. (x - 8)(x + 3) D. (x - 8)(x + 3)(x - 3)
Mathematics
Simplify.(-35 ÷ 5) - (9 ÷ 9)
A. -8 B. 7 C. 6 D. -7
Mathematics