6 .
Diaz Industries used 13,217 kilowatt hours of electricity in August. The peak load during the
month was 62 kilowatts. Using the figure below, what is its August electricity bill?
NORTH CENTRAL POWER COMPANY
Demand Charge
$6.54 per kW
Energy Charge
First 1,000
$0.0644 par kWh
More than 1,000
$0.0578 per kWh
Puel Adjustment Charge $0.017 per kWh
A $1,400.71
OB $1,306.07
OC $1,218.34
OD $1,130.61

Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3