Friday

January 30, 2015

January 30, 2015

Posted by **Melvin** on Saturday, June 11, 2011 at 6:25pm.

(a)Rewrite this formula using rational exponents. Don't forget to rationalize the denominator.

(b)Solve the formula for L.

- Algebra -
**bobpursley**, Saturday, June 11, 2011 at 7:37pmI think you mistyped 980

T=2PI (L/980)^.5

to solve for L, square both sides first.

- Algebra -
**Henry**, Saturday, June 11, 2011 at 8:02pma. T = 2pi*sqrt(L/980).

Square both sides:

T^2 = 4(pi)^2(L/980).

b. Multiply both sides by 980/4(pi)^2:

980T^2/4(pi)^2 = L.

- Algebra -
**Melvin**, Saturday, June 11, 2011 at 11:39pmThanks Henry and bobpursley for replying. Now the question makes sense :-)

**Answer this Question**

**Related Questions**

algebra - The Length of time (T) in seconds it takes the pendulum of a clock to ...

Math - The length of time (T) in seconds it takes the pendulum of a clock to ...

algebra - Time to swing. The period T (time in seconds for one complete cycle) ...

math - The formula T=2*pi*sqrt[L/g] gives the period of a pendulum of length l ...

math - The period T (time in seconds for one complete cycle) of a simple ...

math - The formula T=2*pi*sqrt[L/32] gives the period of a pendulum of length l...

math - The length of time that it takes for a pendulum to make one complete ...

math - The length of time that it takes for a pendulum to make one complete ...

physics - The period of a simple pendulum is measured to be 4.0 seconds in a ...

physics - The period of a simple pendulum is measured to be 4.0 seconds in a ...