An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.4x3/2(x3 + x2) - 6x5/2 - 6x3/2
A. x3/2(x - 1)[4(x2 - 1) - 2] + 4x3
B. 4x3/2(x3 - 1) + 4x3 - 2x3/2(x - 1)
C. 2x3/2(x + 1)(2x2 - 3)
D. 4x3/2(x + 1)(2x2 - 3)
Answer: C
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Evaluate the integral.
dx
A. 
+ ln
- 
+ C
B. (x + 3)2 tan-1 3x + ln
+ 
+ C
C. 
+ 
+ C
D. 
+ ln
+ 
+ C
The decibel level D, a measure of loudness of sound, can be calculated from the relative intensity I of sound. The relationship is
.
A: If one sound is 1,000 times as intense as another, how do their decibel ratings compare?B: Is the graph of D versus I concave up or concave down? Explain what the concavity means in practical terms.C: Solve the equation above to express relative intensity as a function of decibels.
?
What will be an ideal response?
Simplify.
2
A. 
B. 
C. 
D. 
Provide an appropriate response.If X is normally distributed with ? = 80 and ? = 8, find P(X < 74).
A. 0.7266 B. 0.7734 C. 0.7732 D. 0.2266 E. 0.2734