Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Answer: C
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the coordinate axes, the curve y = ex, and the line x = ln 3 about the line x = ln 3.
A. 2?(2 + ln 3) B. 2?(3 - ln 3) C. 2?(2 - ln 3) D. 2?(3 - ln 4)
Solve. Write the fraction in simplest form.A warehouse stores 300 different inventory items. 
of these items are perishable. How many of the inventory items are perishable?
A. 118 items B. 120 items C. 60 items D. 122 items
In Mrs. Kay's math class, there are 150 points on the final exam and 520 total points for the course. Just prior to the final exam, several students are thinking about their grade. A student has earned 91, 84, and 88 points on tests and only 5 points on projects and homework. Is it possible for the student to earn a B or better (80%)?
A) no B) yes
Find the indicated matrix.2A + B, where A = 
, B = 
A. 
B. 
C. 
D. 