Find the indicated matrix.X, where 2X + 3A = B, A = 
, B = 
A. 
B. 
C. 
D. 
Answer: B
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Find the LCD for the list of rational expressions.
, 
A. t - 2 B. t C. t(t - 2) D. 54
Simplify the expression.2
(
+ 
)
A. 10
+ 10
B. 2
+ 5
C. 2
+ 5
D. 2
+ 10
Solve the problem.The sales of a mature product (one which has passed its peak) will decline by the function S(t)= S0e-at, where t is time in years. Find the sales after 16 years if 
and 
A. 98,675 products B. 2,062,820 products C. 1952 products D. 3903 products
A toy making company has at least 300 squares of felt, 700 oz of stuffing, and 230 ft of trim to make dogs and dinosaurs. A dog uses 1 square of felt, 4 oz of stuffing, and 1 ft of trim. A dinosaur uses 2 squares of felt, 3 oz of stuffing, and 1 ft of trim.It costs the company $1.09 to make each dog and $1.34 for each dinosaur. The company wants to minimize its costs. How much will it cost if the supply of trim is reduced to at least 100 ft?
A. $218 B. $109 C. $243 D. $134