Determine if matrix A is invertible.A = 
A. Invertible
B. Not invertible
Answer: A
Mathematics
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The graph of a function f is given. Use the graph to answer the question.How often does the line y = -100 intersect the graph?
A. once B. twice C. three times D. does not intersect
Mathematics
Graph the polar equation.r2 = 66 sin 4?
A. 
B. 
C. 
D. 
Mathematics
Solve.In a class of 14 students, 2 students got an A, 5 students got a B, 4 students got a C, and 3 students got a D on a test. How many ways can the grades be assigned?
A. 420,420 B. 2,522,520 C. 84,084 D. 1,681,680
Mathematics
Solve by using the quadratic formula.
- 
r + 
= 0
A. -2, 2 B. 2 C. 0 D. -2
Mathematics