Is the ordered triple a solution to the given system of equations?(2, 8, -3) 3x - 4y - 2z = -20 4x + y - z = 19 x - 2y + 3z = -23.
A. Yes
B. No
Answer: A
Mathematics
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Find the exact value of the expression or state that it does not exist.tan (tan-1 (-6.5))
A. -3.4 B. -6.5 C. 6.5 D. 9.6
Mathematics
Solve.The daily profit in dollars of a specialty cake shop is described by the function 
where x is the number of cakes prepared in one day. The maximum profit for the company occurs at the vertex of the parabola. How many cakes should be prepared per day in order to maximize profit?
A. 625 cakes B. 3750 cakes C. 25 cakes D. 50 cakes
Mathematics
Find the dimension of the matrix. Tell if the matrix is a square, column, or row matrix, when applicable.
A. 7 B. 9 C. 3 × 3; square D. 3 × 0; square
Mathematics
Tell whether the statement is true or false.Some rational numbers are integers.
A. True B. False
Mathematics