Solve using matrices. x - y + 4z = -152x + z = -3 x + 5y + z = 12
A. (-3, 3, 0)
B. (0, 3, -3)
C. (3, -3, 0)
D. (-3, 0, 3)
Answer: B
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= secn-2 x tan x + (n - 2) 
B. 
= secn-2 x tan x - (n - 2) 
C. 
= 
secn-2 x tan x + 
D. 
= 
secn x tan x - 
A French restaurant offers a menu consisting of 5 different appetizers, 3 different salads, 2 different soups, 7 different main courses, and 3 different desserts. The restaurant offers different combinations of "fixed price dinners" on different days of the week.On Monday through Thursday, the "fixed price dinner" consists of a choice of appetizer, a soup, a main course, and a dessert. Assuming you don't pass on any of these, how many different "fixed price dinners" are possible on these days?
A. 210 B. 42 C. 70 D. 17 E. none of these
Simplify.
A. 
B. 
C. 2
D. 1
Add. Write the answer in lowest terms.
A. 30
B. 29
C. 29
D. 28