lynx7

bottom right graph

 In mathematics, the functions of the whole part are functions that take a real number and return a whole number, either by excess or by default.
 Function floor (or ground), that to each real number assigns the nearest whole number by defect, that is to say, the greater whole number equal or smaller than that real number.
 Let's evaluate the extremes of the interval
 x = -3
 g (-3) = floor (-3) -2 = -5
 x = 3
 g (3) = floor (3) -2 = 1
 Therefore, the graph that best corresponds to the function in the given interval is the attached graph.

top right graph

2.

area of rectangle = length * width

area of rectangle = 14mm * 16mm

area of rectangle = 244mm^2

√244mm = 15mm

D = 15mm 

1.

area of trapezoid (park)

A = (a + b) ÷ 2 * h

A = (25 + 33) ÷ 2 * 30

A = (58) ÷ 2 * 30

A = 29 * 30

A = 870yd^2 

area of circle (fountain)

A = π * r^2

A = π * 4^2

A = π * 16

A = 50yd^2 (nearest whole number)

area of park - area of founatin = area of the park without the fountain

870yd^2 - 50yd^2 = 820yd^2

V = 2 * π * r^2 * h

r^2 = V ÷ 2 * π * h

h = V ÷ 2 * π * r^2

2.

Volume of cone = π * r^2 * h/3

volume of cone = π * 8^2 * 1.95/3

volume of cone = 131cm^3 (nearest whole number)

              Truck   Car   Total

Female    9         36     45

Male        18       31     49

Total        27       67     94

                 Plasma TVLCD TVProjection TVTotal

54 inches     20           8                  2           30

68 inches      9           22                 2           33   

86 inches      6           16                 5           27 

Total             35          46                 9           90
 

(16/46) * 100 = 35%

A 35%

thank you alan

100/2=50

lower bound of 6400kg = 6350kg

10/2=5 

upper bound of 90kg = 95kg

6350kg/95kg=66kg