Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine whether the integration formula is correct. 
dx = 
cos-1 9x - 
+ C
A. Yes B. No
Mathematics
Prove that the equation is an identity.
= sin ? tan ?
What will be an ideal response?
Mathematics
Solve the problem.The length of a rectangular storage room is 2 feet longer than its width. If the area of the room is 63 square feet, find its dimensions.
A. w = 7 ft, l = 9 ft B. w = 6 ft, l = 8 ft C. w = 8 ft, l = 10 ft D. w = 6 ft, l = 10 ft
Mathematics
Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.05
A. r = -0.9293; Correlation exists. B. r = -0.9293; Correlation does not exist. C. r = -0.9529; Correlation does not exist. D. r = -0.9529; Correlation exists.
Mathematics