Find the LCD for the rational expression.
, 
A. x + 4
B. 4(x + 4)
C. 4x + 4
D. 4
Answer: B
Mathematics
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Simplify.- 
A. -3
B. 5
C. 3
D. -9
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.
A. 
B. 
- 
i
C. 
+ 
i
D. 
i
Mathematics
The average rate of change of a function f on the interval [a, b] is best represented by the slope of:
a. The secant line that intersects f at (a, f(a)) and (b, f(b)) b. The tangent line that touches f at (a, f(a)) c. The tangent line that touches f at (b, f(b)) d. The secant line that intersects f at (f(a), f(b)) and (a, b)
Mathematics
Provide an appropriate response.A teacher asked 12 students how many hours they had spent preparing for a test. The results are shown below. 5, 3, 10, 12, 8, 18, 5, 10, 4, 15, 6, 4Construct a boxplot for the data.
A. 
B. 
C. 
D. 
Mathematics