Simplify the difference quotient by rationalizing the numerator.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Show that the function is a solution of the wave equation.w(x, t) = sin (-9x - 9ct)
A. No B. Yes
Mathematics
Solve the problem.A particle moves on a coordinate line with acceleration 
subject to the conditions that 
and 
when 
Find the velocity 
in terms of t and the position s in terms of t.
A. v = 10
+ 6
- 13; s = 
+ 
- 13t + 
B. v = 
+ 
- 13t + 
; s = 10
+ 6
- 13
C. v = 10
+ 6
- 13; s = 
+ 
- 13t + 
D. v = 10
- 6
+ 13; s = 
- 
+ 13t + 
Mathematics
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = -2 B. x = 0 C. x = 2, x = -2 D. x = 2, x = 0
Mathematics
Use the figure below to answer the question. Round the answer to two decimal places.
 FIGURE.png)
Find x.
(a) 4.83
(b) 3.47
(c) 7.20
(d) 6.95
Mathematics