Find the inverse, if it exists, for the matrix.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Evaluate the expression for the given value of x.
?
A. 
B. 
C. 
D. 48
E. -48
Mathematics
Solve the problem.At the end of the day, a storekeeper had $1050 in the cash register, counting both the sale of goods and the sales tax of 5%. Find the amount that is the tax. Round to the nearest dollar if necessary.
A. $50 B. $53 C. $55 D. $41
Mathematics
Solve the radical equation. Check all proposed solutions.
= 1
A. x = 
B. x = - 
C. no solution
D. x = - 
Mathematics
Multiply and simplify.
? 3b
A. 
b
B. 
C. 
D. 11b
Mathematics