Solve the problem.Find the length of 
. Round to the nearest tenth. A(-3, 1), B(6, -1)
A. 3.0
B. 8.1
C. 9.3
D. 9.2
Answer: D
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (3 + 2t2)i + (2t2 - 2)j + (5 - t2)k, 1 ? t ? 2
A. 27 B. 9 C. 45 D. 15
Mathematics
Solve the problem.Find the volume interior to the inverted catenary kiln (an oven used to fire pottery) shown in the figure. Give an exact answer in terms of logarithms. 
A. 7(3 ln(3 + 
) - 
)
B. 14(3 ln(3 + 
) + 
)
C. 42 ln(3 + 
) - 
D. 14(3 ln(3 + 
) - 
)
Mathematics
Use the theoretical probability formula to solve the problem. Express the probability as a simplified fraction.A die is rolled. Find the probability of getting a 2.
A. 
B. 0
C. 2
D. 
Mathematics
Solve the system by the elimination method.2x + 4y = 0-8x - 16y = -0
A. {(2, 3)} B. {(3, -5)} C. ? D. {(x, y)| 2x + 4y = 0}
Mathematics