Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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The life expectancy of a star is a power function of its mass. It is observed that if the mass is doubled, the life expectancy is multiplied by 0.18. What is the value of the power k for this power function? Round your answer to two decimal places if necessary. ?
A. 
B. 
C. 
D. 
Mathematics
Evaluate the limit by direct evaluation. Change the form of the function where necessary.
A. -5 B. Does not exist C. 5 D. 1
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x2 + 4, y = 2x + 4
A. 
?
B. 
?
C. 8?
D. 
?
Mathematics
Solve and check.-19.4m = -291
A. m = 
B. m = 15
C. m = 271.6
D. m = 276
Mathematics