Answer the question.Sue has taken four exams so far in her History course. Her scores are 98.0, 78.2, 93, and 87.5. What is the average of these scores?
A. 91.375
B. 89.175
C. 87.775
D. 89.325
Answer: B
Mathematics
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Find the indicated vector.Let u = 
. Find -2u.
A. 
B. 
C. 
D. 
Mathematics
Convert the other base number to base 10.32079
A. 28,863 B. 268 C. 2943 D. 2356
Mathematics
Find the domain and graph the function.g(x) = -9 - 2x - x2
A. D: (-?, ?)
B. D: (-?, ?)
C. D: (-?, ?)
D. D: (-?, - 8]
Mathematics
Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)r = 
for A
A. A = ± 
B. A = 2?r2
C. A = 2?r
D. A = ± 2?
Mathematics