Solve the equation by making an appropriate substitution.x4 - 13x2 + 36 = 0
A. {-2i, 2i, -3i, 3i}
B. {4, 9}
C. {-2, 2, -3, 3}
D. {2, 3}
Answer: C
Mathematics
You might also like to view...
Find the greatest common factor of the set of numbers. 54, 126, and 162
A. 14 B. 6 C. 2 D. 18
Mathematics
Solve the problem. Round to the nearest tenth of a percent unless otherwise noted. On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 33 questions correct. What was the percent increase?
A. 32% B. 68% C. 24.2% D. 8%
Mathematics
Find two different spanning trees for the graph.
What will be an ideal response?
Mathematics
Provide an appropriate response.Identify the numerical coefficient: 
Fill in the blank(s) with the appropriate word(s).
Mathematics