How wide is the hole at ground level on the drawing

8 feet

Step-by-step explanation:

In the given table, given the three point of hole.

Distance from center (x)   Depth from level of ground (y)

                -2                                    -6

                 0                                    -8

                 2                                    -6

The equation of hole form parabolic.

(-2,-6) , (0,-8) and (2,-6)

parabolic equation:

For point (-2,-6)

For point (0,-8)

For point (2,-6)

using the system of equation a, b and c. To solve for a, b and c

4a-2b = 2  and 4a+2b = 2

a=1/2 , b=0, c=-8

Equation:

We need to find wide of hole. Wide hole at ground level where y is 0

So, set y=0 and find distance between x-coordinate

Distance between x-coordinate = 4-(-4) = 8

Hence, The wide of hole is 8 feet

table 1

step-by-step explanation:

1-16

2-32

4-64

8-128

all multiples of 16

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: