Determine if the given ordered triple is a solution of the system.(3, 1, 5)5x + 4y + z = 323x - 3y - z = 95x + y + 4z = 38
A. not a solution
B. solution
Answer: A
Mathematics
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Solve the equation and check your solution.
= 6 - 
A. x = 
B. x = 
C. x = 7
D. x = 8
Mathematics
The size of two matrices is given. Find the size of the product AB and the product BA, if the products exist.A is 2 × 4, B is 4 × 2.
A. AB is undefined, BA is 4 × 4. B. AB is 4 × 4, BA is 2 × 2. C. AB is 2 × 2, BA is undefined. D. AB is 2 × 2, BA is 4 × 4.
Mathematics
Answer the question.Consider the numbers 14, 
, -15, 0, 
, 
, 0.
, 0.78, 0.144135... Which are rational numbers?
A. 14, -15, 0, 
, 0.
, 0.78
B. 
, 0.
, 0.78, 0.144135...
C. 14, -15, 0, 
, 
, 0.
, 0.78
D. 14, -15, 0, 
, 
, 0.78
Mathematics
Use the power rule and the power of a product or quotient rule to simplify the expression.(-3a)4
A. 81a B. -12a4 C. -12a D. 81a4
Mathematics