Given matrix A, find the indicated cofactor.Find A13.A =
A. 5
B. 4
C. 1
D. -1
Answer: D
Mathematics
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Sketch the given surface.z = x2 + 4y2
What will be an ideal response?
Mathematics
Solve the problem.The equivalent resistance R? of the resistors R1 and R2 in parallel is given by 
If 
and 
find R1 and R2.
A. 22.0?; 0.94? B. 26.96?; 1.04? C. 5.08?; 1.02? D. 3.29?; 2.32?
Mathematics
Add. Write the answer in lowest terms as a mixed number.
A. 42
B. 41
C. 41
D. 40
Mathematics
Solve the triangle.a = 8, b = 13, c = 15
A. A = 34.2°, B = 58°, C = 87.8° B. A = 32.2°, B = 60°, C = 87.8° C. A = 30.2°, B = 60°, C = 89.8° D. no triangle
Mathematics