Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. 4446
B. 4602
C. 4738.5
D. 4329
Answer: A
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A categorical proposition is given. If it is not already in standard form, rephrase it. State the subject and predicate sets, and draw a Venn diagram for the proposition. Label all regions of the diagram clearly.Some singers are not children.
What will be an ideal response?
Solve the problem.Ellen is knitting a scarf with one 1
-inch blue stripe, one 
green stripe, and one 
white stripe. How wide is the scarf?
A. 
in.
B. 2
in.
C. 
in.
D. 8
in.
Simplify the expression.
÷ 
? 
A. 2
B. 
C. 
D. 1
Solve the problem. Suppose a student plans to drive from his home to New Haven 75 miles on a divided highway and 30 miles on an undivided highway. The speed limit is 70 mph on the divided highway and 50 mph on the undivided highway. Assume the driver drives nonstop. Let T(a) represent the driving time (in hours) if the student drives at a mph above the speed limits. Find T(0). What does your result mean in terms of the trip?
A. 1.45; If the student drives at the speed limits the trip will take 1.45 hours. B. 1.67; If the student drives at the speed limits the trip will take 1.67 hours. C. 1.45; If the student drives at 1.45 mph above the speed limits, the trip will take 1.45 hours. D. 1.67; If the student drives at 1.67 mph above the speed limits, the trip will take 1.67 hours.