Every rhombus
(a) has perpendicular diagonals.
(b) is a parallelogram.
(c) has diagonals which bisect each other.
(d) All of (a )–(c) are correct.
(e) None of these is correct.
d
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Solve the problem. Round to the nearest tenth if necessary.Shane is flying his kite on 48 yd of string. The kite is directly above the edge of a pond. The edge of a pond is 32 yd from where the kite is tied to the ground. How far is the kite above the pond?
A. 1,280 yd B. 35.8 yd C. 57.7 yd D. 3,328 yd
Determine the equations of any horizontal and vertical asymptotes of 
.
A. horizontal: y = 1; vertical: x = -6 B. horizontal: y = 0; vertical: x = 1 and x = -6 C. horizontal: y = 0; vertical: x = -1 and x = 1 D. horizontal: none; vertical: none E. horizontal: y = 0; vertical: x = -6 and x = -4
Perform the indicated operation. Simplify if possible.- 
- 
A. 
B. 
C. 
D. 
Find the partial derivative.Let z = f(x,y) = 5x2 - 12xy + 6y3. Find 
.
A. 10x - 12y B. 10x + 12y2 C. -12x - 18y D. -12x + 18y2