Solve the system of equations by using an inverse matrix.-5x + 3y = 82x - 4y = -20
A. (-6, -2)
B. (6, 2)
C. (2, 6)
D. (-2, -6)
Answer: C
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Perform the indicated operations. Express the answer as a single polynomial in standard form.(5y + 11)(8y2 - 2y - 10)
A. 40y3 + 78y2 - 72y - 110 B. 40y3 + 98y2 + 72y + 110 C. 128y2 - 32y - 160 D. 40y3 - 10y2 - 50y + 11
Solve the problem.In a certain state the annual consumption, b, of beef (in kilograms per person) can be estimated by 
where t is the number of years since 2005. Graph the equation and use the graph to estimate the beef consumption, to the nearest kilogram, in the year 2021.
A. About 15 kg per person B. About 9 kg per person C. About 12 kg per person D. About 25 kg per person
Solve the problem.A new exhibit is scheduled to open at the local museum. Museum officials expect that 9000 people will visit the exhibit in its first week, and that the number of visitors will drop by 40 people per week after the first week during the first 6 months. Find the total number of visitors expected in the exhibit's first 7 weeks.
A. 53,400 visitors B. 61,920 visitors C. 62,160 visitors D. 44,400 visitors
Find the angle of smallest possible positive measure that is coterminal with the given angle.- 
A. 
B. 
C. 
D. 2?