Solve using a matrix on a graphing calculator.
A. (-11.3, 15.9, -8.1)
B. (-14.1, 19.9, -10.1)
C. (-2.8, 4.0, -2.0)
D. (-5.6, 8.0, -4.0)
Answer: C
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Find the standard deviation for each data set. Round to one more place than the data.5, 4, 6, 20, 5, 13, 12, 17, 14
A. 1.3 B. 5.9 C. 5.5 D. 6.3
Verify that each equation is an identity.
- 
= 4 cot t csc t
What will be an ideal response?
Fill in the digits for the given place values in the following whole number.1,479,580,798billions 
millions 
A. billions: 9, millions: 7 B. billions: 4, millions: 9 C. billions: 9, millions: 5 D. billions: 1, millions: 9
The double line graph below shows the number of Acme Superstores vs. the number of General Superstores. 
Approximately how many more stores did General have than Acme in 2011?
A. approximately 200 B. approximately 500 C. approximately 250 D. approximately 750