Given matrix A, find the indicated minor or cofactor.Find the cofactor A12.A = 
A. 6
B. -1
C. 3
D. 1
Answer: D
Mathematics
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Determine whether the given ordered pair is a solution to the system.(9, 2)8x - 4y = 643y = 6x - 47
A. Yes B. No
Mathematics
Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (3, 0) and (-3, 0); foci at (8, 0) and (-8, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Multiply.0.02 × 0.09
A. 0.0018 B. 0.18 C. 0.000018 D. 0.018
Mathematics
Use the graph to solve the problem.The height h in feet of a projectile thrown upward from the roof of a building after time t seconds is shown in the graph below. How high will the projectile be after 2 s?
A. 350 ft B. 400 ft C. 425 ft D. 375 ft
Mathematics