A pediatric client with a ventricular septal defect repair is placed on a maintenance dose of digoxin. The safe dose is 0.03 mg/kg/day, and the client's weight is 7.2 kg. The primary health care provider (PHCP) prescribes the digoxin to be given twice daily. How much digoxin should the nurse administer to the client at each dose?

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

207/8 is the right

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

the radius is 2 times the diameter.

step-by-step explanation: