Find the inverse of the matrix.
?
What will be an ideal response?
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Solve the problem.An airline decides to reduce ticket prices by x dollars form the current price of $907. (i) Write a polynomial that gives the new price after the x-dollar deduction. (ii) The revenue is the number of tickets sold times the price of each ticket. If 50 tickets were sold when the price was $907 and 30 additional tickets are sold for each dollar the price is reduced, write a polynomial that gives the revenue in terms of x when the original price is reduced by x dollars.
A. (i) -x + 907 (ii) -30x2 + 27,210x + 45,350 B. (i) -x + 907 (ii) 30x2 - 27,210x + 45,350 C. (i) -x - 907 (ii) -30x2 - 45,350x + 27,210 D. (i) -x - 907 (ii) 30x2 + 45,350x + 27,210
Answer the question.What is the usual first step taken in solving the equation 
by completing the square?
What will be an ideal response?
Find f(x) at the indicated value of x.f(x) = -18x - 16, x = 0
A. -34 B. -16 C. -18 D. 0
Write the first five terms of the arithmetic sequence defined recursively. ? a1 = 17, an + 1 = an + 4 ? ?
A. 17, 21, 25, 29, 33 B. -17, -21, -25, -29, -33 C. 17, 21, 25, 29, 41 D. -17, -21, -25, -29, -37 E. 17, 21, 25, 29, 37