Voltage V is related to current I and power P by the equation V = P/I. If the power of a generator is modeled by P = t3 + 2t2 + 21t - 12. If the current of the generator is I = t + 4, write an expression that represents the voltage.

Select one:
a. V = t2 + 6t - 3
b. V = t2 - 6t + 4
c. V = 2t2 - 6t - 3
d. V = t + 6

Question

Voltage V is related to current I and power P by the equation V = P/I.    If the power of a generator is modeled by P = t3 + 2t2 + 21t - 12.  If the current of the generator is I = t + 4, write an expression that represents the voltage.

Select one:
a. V = t2 + 6t - 3
b. V = t2 - 6t + 4
c. V = 2t2 - 6t - 3
d. V = t + 6

1645323 · Answer

@terenzreignz

1645323 · Answer

?

1645323 · Answer

is it too hard? my teacher ght help me with this one

ybarrap · Answer

It's tedious. But here are some details. So far, none match your options:
$$
V=t^3/(t+4)+(2 t^2)/(t+4)+(21 t)/(t+4)-12/(t+4)\
=(t-2) t-128/(t+4)+29\
=t^2-2 t-128/(t+4)+29
$$

1645323 · Answer

ok then my teacher messed it up then but thanks

ybarrap · Answer

yw