Decide whether the equation is "conditional," an "identity," or a "contradiction." Give its solution set.20m + 10 = 5(2m + 8)
A. Identity; {3}
B. Contradiction; {-5}
C. Conditional; {3}
D. Conditional; {-5}
Answer: C
Mathematics
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Provide an appropriate response.Given 
f(x) = Ll, 
f(x) = Lr, and Ll ? Lr, which of the following statements is true? I. 
f(x) = Ll II. 
f(x) = Lr III. 
f(x) does not exist.
A. I B. III C. II D. none
Mathematics
The following table shows total sales S, in dollars, t months after the first of the year. Use linear regression to model sales as a function of months since the first of the year. t 2 3 6 7 S 7539.36 11018.49 22235.76 25796.81
What will be an ideal response?
Mathematics
Subtract the fractions. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Add or subtract. Express the answer as a mixed number.6
+ 4
A. 2
B. 11
C. 10
D. 11
Mathematics