Use formulas to find the area of the figure.
A. 16 cm2
B. 60 cm2
C. 24 cm2
D. 32 cm2
Answer: B
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Restate the fact as indicated.The population of the United States in 2000 was roughly 280 million. Express this as the number of people per square mile. The land area of the United States is roughly 3,536,000 square miles.
A. 0.8 people per square mile B. 79 people per square mile C. 8 people per square mile D. 790 people per square mile
Use implicit differentiation to find dy/dx and d2y/dx2.xy + 3 = y, at the point (4, -1)
A. 
= 
; 
= 
B. 
= - 
; 
= 0
C. 
= 3; 
= - 24
D. 
= 
; 
= - 
Show that the set has cardinal number ?0 by establishing a one-to-one correspondence between the natural numbers and the given set. Be sure to indicate the general correspondence.
A.
| 1, | 2, | 3, | 4, | 5, ..., n, ... |
| ? | ? | ? | ? | ? ? |
, 
, 
, 
, 
, ..., 
, ...B.
| 1, | 2, | 3, | 4, | 5, ..., n, ... |
| ? | ? | ? | ? | ? ? |
, 
, 
, 
, 
, ..., 
, ...C.
| 1, | 2, | 3, | 4, | 5, ..., n, ... |
| ? | ? | ? | ? | ? | ? |
, 
, 
, 
, 
, ..., 
, ...D.
| 1, | 2, | 3, | 4, | 5, ..., n, ... |
| ? | ? | ? | ? | ? ? |
, 
, 
, 
, 
, ..., 
, ...Perform the indicated operation and write the answer in lowest terms. 
? 
? 
A. 
B. 
C. 
D. 