Find the domain of the composite function (g ? f)(x). Write the domain in interval notation.f(x) = 
, g(x) = 7x + 6
A. (-?, ?)
B. (-?, 7) ? (7, ?)
C. [0, ?)
D. (-?, 0]
Answer: A
Mathematics
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If it takes one second to write down each digit, how long will it take to write down all the numbers from 1 to 1,000? ?
A. 48 min, 13 sec. B. 105 min, 1 sec. C. 91 min, 3 sec. D. 48 min E. 83 min, 6 sec.
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Simplify the expression, if possible.-
A. Not an integer B. -1 C. 1 D. 0
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Solve.The area of a square is, numerically, 140 more than its perimeter. Find the length of a side.
A. 56 units B. 392 units C. 14 units D. 98 units
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Use a CAS to perform the integration.
A. 
ln x - 
+ C
B. 
ln x - 
+ C
C. 
ln x - 
+ C
D. 
ln x + 
+ C
Mathematics