Use n = 4 to approximate the value of the integral by the trapezoidal rule.
A. 28.8
B. 405.3
C. 431.3
D. 551.3
Answer: C
Mathematics
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Find the divergence of the field F.F = 3x5i + 3y5j + 4z5k
A. 50 B. 15x4 + 15y4 + 20z4 C. 3x4 + 3y4 + 4z4 D. 0
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Find the angle between the given vectors to the nearest tenth of a degree.v = 2i, w = j
A. 0° B. 90° C. 270° D. 180°
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Solve the problem.Find two numbers whose sum is 51 and whose difference is 5.
A. 47 and 4 B. 30 and 35 C. 23 and 28 D. 21 and 30
Mathematics
Fill in the blank with one of the words or phrases listed below.
The process of eliminating the radical in the denominator of a radical expression is called 
.
A. principal square root B. rationalizing the denominator C. conjugate D. radicand
Mathematics