Find the value of the determinant.
A. 0
B. 
C. -2
D. 2
Answer: D
Mathematics
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Write the given terms as like radicals, if possible. If any variables exist, assume that they are positive.
, 
A. 3
, 4
B. 
, 2
C. 5
, 5
D. Not possible
Mathematics
Solve the problem.Roberto invested some money at 8%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $4120. How much was invested at 10%?
A. $6000 B. $28,000 C. $3000 D. $30,000
Mathematics
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Mathematics
Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.Runners in a 26 km race run how many miles?
A. 27.6 mi B. 41.9 mi C. 13.0 mi D. 16.1 mi
Mathematics