The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which two hour period did the temperature increase the most?
A. 10 a.m. to 11 a.m.
B. 10 a.m. to 12 p.m.
C. 12 p.m. to 2 p.m.
D. 9 a.m. to 11 a.m.
Answer: D
Mathematics
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Find first four terms of the indicated expansion by use of the binomial series.(1 - 3
)7
A. 1 - 21
+ 63x - 105x
+ . . .
B. 1 - 21
+ 189x - 945x2 + . . .
C. 1 + 21
- 189x + 945x
- . . .
D. 1 - 21
+ 189x - 945x
+ . . .
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Solve the problem.Find the average distance from a point 
in the first two quadrants of the disk 
to the origin.
A. 
B. 1
C. 2
D. 
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Multiply.-5x(-11x - 9)
A. 100x2 B. 55x2 - 9x C. -11x2 + 45x D. 55x2 + 45x
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Given matrix A, find the indicated cofactor.Find A42.A =
A. -3 B. -6 C. 6 D. 0
Mathematics