Around the car park, cylindrical concrete bollards are going to go placed . 80 cm diameter with the height of 1.3m. how much concrete will each one need by working out its volume in cm3

653.120 cm³

Step-by-step explanation:

diameter/2 = 40 cm = radius

Height = 130 cm

Volume?

Volume = π r² h

= 3,14 . 1600 . 130

= 653.120 cm³

CMIIW

0.653 m^3

Step-by-step explanation:

Radius = 1/2 * 0.8 = 0.4 m

Volume =  pi r^2 h

= pi * 0.4^2 * 1.3

= 0.653 m^3  to nearest thousandth

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.