Given matrix A, find the indicated minor or cofactor.Find the minor M21.A =

A. 2
B. -2
C. -13
D. 13


Answer: D

Mathematics

You might also like to view...

Solve the problem.Alex and Juana went on a 32-mile canoe trip with their class. On the first day they traveled 24 miles. What percent of the total distance did they canoe?

A. 0.75% B. 75% C. 1% D. 100%

Mathematics

Perform the indicated operation.(14x + 12) - (-4x2 - 7x + 12)

A. 4x2 - 21x B. 4x2 + 21x C. 4x2 + 21x - 24 D. -4x2 + 7x + 24

Mathematics

Provide an appropriate response.Explain why most retailers use selling price rather than cost as the base when calculating markup.

What will be an ideal response?

Mathematics

Solve the problem.The census figures for a city indicate the population declined by 42,457 people over the last ten years. What was the average annual change in the population?

A. -4245.7 B. 4245.7 C. -424.57 D. 424.57

Mathematics