Find the sum.-3 + 1 + 5 + 9 + 13 + ... + (4n - 7)
A. n(2n - 5)
B. n(2n + 5)
C. n(4n - 7)
D. n(4n + 7)
Answer: A
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Identify the type of surface represented by the given equation. y2 + z2 = 1
A.
| Parabolic cylinder |
B.
| Paraboloid |
C.
| Ellipsoid |
D.
| Cylinder |
Arrange the fractions in ascending order. Or, if the fractions are equivalent, answer "Equivalent".
, 
A. 
, 
B. Equivalent
C. 
, 
Sketch a graph to represent the situation described.Subscriptions to a magazine fell rapidly during the first three months of the year 2000. During the next three months, subscriptions continued to fall but more and more slowly. After that, subscriptions were constant for two months, and then for the next two months subscriptions rose again, very slowly at first and then more quickly.
A. 
B. 
C. 
D. 
Simplify.2 gallons 9 quarts
A. 6 gallons 2 quarts B. 6 gallons 1 quart C. 4 gallons 2 quarts D. 4 gallons 1 quart