Saturday

November 22, 2014

November 22, 2014

Posted by **Jo** on Tuesday, December 8, 2009 at 5:25am.

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 4 6 6 3 4

- PreCalc -
**Jo**, Tuesday, December 8, 2009 at 5:47amsorry

- Jo -
**Reiny**, Tuesday, December 8, 2009 at 8:23amTo solve 200 = 300sin(5pi/11)(t-4) + 500

we get -2/3 = sin(5pi/11)(t-4)

So I know that (5pi/11)(t-4) is in either III or IV, since the sine is negative in those quadrants

To find the "angle in standard position" I ignore the negative and take the inverse sine

That got me .72972 (you must have had that)

For the angle in III

(5pi/11)(t-4) = pi + .72972

solving this gave me 6.7 (which you had)

For the angle in IV

(5pi/11)(t-4) = 2pi - .72972

solving this gave the the 7.9

**Answer this Question**

**Related Questions**

maths (it's urgent) - the path of the rocket is represented by the equation y= ...

algbra - heyya Your equation makes no sense. Your equation makes no sense. 4x = ...

RESPONSE to PreCalc - Makes complete sense thank you so much!!! My only question...

English - I can stand that much to help the environment...

Math - A mathematical model for concentration of administered cortisone in ...

math, question - Is there anywher i can go for further explanations on how to ...

math - The lengths in inches (x and y) of two fish are related by the equation ...

Physics - A bothersome feature of many physical measurements is the presence of ...

Algebra (please help) - Determine whether the following statement makes sense or...

Math - I wounder what is 5(29)? I just really don't under stand how to solve it.