Provide an appropriate response.With the function f(x) = logax, why can't x be less than 0?
What will be an ideal response?
Answers may vary. One possibility: The function is defined for all positive numbers a, 
Since a positive number raised to any real-number exponent is a positive number, x must be positive, too. That begs the question of why a must be positive. Assume that a is a negative number. A negative number raised to certain powers (e.g., 1/2) would yield a non-real number.
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Find the second derivative of the function.y = 
A. 
= 
+ 
B. 
= 
+ 
C. 
= - 
- 
D. 
= - 
- 
Solve.log21 = x
A. {0} B. {1} C. {4} D. {2}
Consider the series
?
.
?
Determine whether the geometric series converges or diverges.
?
If it converges, find its sum.
What will be an ideal response?
Find the length of the arc intercepted by a central angle ? in a circle of given diameter or radius. Round your answer to as many places as your calculator will allow.Radius 23.4 m, ? = 
radians
A. 29.4053072 m B. 9.36 m C. 58.5 m D. 183.78317 m