Find all points (x, y) where f(x, y) = 2x2 + 2y3 - x - 6y + 14 has a possible relative maximum or minimum.Enter your answer exactly as just (a, b), (c, d) with b > d and where a, b, c, d are either integers or reduced fractions of form 
.
What will be an ideal response?
, 
Mathematics
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Evaluate the function.r(x) = -
; r(1)
A. 4 B. 3 C. 1 D. -3
Mathematics
Solve the problem. Round to the nearest tenth.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 9 m
A. 9.5 m B. 91 m C. 29.6 m D. 874 m
Mathematics
Solve the problem.A holder of a $9000, 7%, 210-day note dated June 8 decides to sell the note at a discount based on ordinary interest. The note is sold on July 18 at a discount of 12% using the banker's rule. Find the proceeds.
A. $8836.68 B. $8770.64 C. $8833.55 D. $9057.85
Mathematics
What is the sum of the first 90 consecutive even numbers?
Fill in the blank(s) with the appropriate word(s).
Mathematics