Solve the inequality. Graph your solution on a number line, and write your solution in interval notation.-3 < x + 7 < 1
A. [-10, -6]
B. (4, 8)
C. (6, 10)
D. (-10, -6)
Answer: D
Mathematics
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Determine if the given polar coordinates represent the same point.(10, ?/6), (-10, 7?/6)
A. Yes B. No
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Find all real solutions to the system of equations using the addition method.2x2 + y2 = 66 x2 + y2 = 41
A. (5, 4), (5, -4), (-5, 4), (-5, -4) B. (4, 5), (-4, 5), (4, -5), (-4, -5) C. (4, 5), (-4, -5) D. (5, 4), (-5, -4)
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Find the square root if it is a real number. If it is not a real number, state so.
A. 3.464 B. 24 C. 12 D. 6
Mathematics
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, ... |
| ? | ? | ? | ? | ? ? |
, 
, 
, 
, 
, ..., 
, ...
Mathematics