Posted by **Ashley** on Tuesday, January 29, 2013 at 8:26am.

The voltage in a circuit is given by the formula V = 16t3 - 79t. Find the values for t for which V is a maximum or a minimum.

larger t in seconds =

smaller t in seconds =

My Answer:

V=16t^3-79t

V'=48t^2-79

0=48t^2-79

Sq root of 1.645833 = t

1.2829= t

V''=96t positive therefore a min

Larger t = 1.2829

smaller t = -1.2829

Can you please confirm this is correct.

## Answer This Question

## Related Questions

- Calculus - The voltage signal from a standard european wall socket can be ...
- Physics, help please! - Can the voltage across any of the three components in ...
- Trigonometry - the voltage E in volts in a circuit after t seconds (t70) is ...
- physics, help with circuits please! - Can the voltage across any of the three ...
- math - The distance meters from a fixed point O, covered by a particle after t ...
- Differential calculus - The voltage across the plates of a capacitor at any time...
- calculus - The voltage of the power supply in a AC-DC coupled circuit is given ...
- Math - The voltage, V, in volts, applied to an electric circuit can be modeled ...
- trig - the voltage, v, in volts, applied to an electric circuit can be modelled ...
- trig - the voltage, v, in volts, applied to an electric circuit can be modelled ...

More Related Questions