Wednesday

April 16, 2014

April 16, 2014

Posted by **Zinhle** on Monday, March 18, 2013 at 3:24pm.

- ??? -
**Writeacher**, Monday, March 18, 2013 at 3:43pmIf you really want the help of an expert in this subject, you'll

**follow directions**and put the SUBJECT in the School Subject box.

- Trig -
**Steve**, Monday, March 18, 2013 at 3:53pm13sinx+5=0

sinx = -5/13

sinx is negative in QIII,QIV, but we want the QIII value.

so, cosx = -12/13

sin2x = 2sinx cosx = 2(-5/13)(-12/13) = 120/169

**Related Questions**

Trigonometry - 2cos^2(x) = 13sinx - 5 How do i solve for x? I think i have to ...

algebra 2 - suppose a house that costs $270,000 appreciates by 5% each year. in ...

functions 12 - solve 12cos^2X=8+13sinX between the window of -360 ¡Ü x ¡Ü 360

college chem - PLEASE..Determine [OH-]of a solution that is 0.270 M in HCO3-......

Algebra - For 1980 through 1990, the average weekly earnings (in dollars)for ...

math - Determine the values of sin, cos, tan, csc, sec and cot at (-3, -3) on ...

health - Which of the following is true in regard to limited data sets? A....

Chemistry - Assume that the element 107Uns is synthesized and that the sample ...

Biology - What is a molecular clock? A)a tool scientists use to date fossils B)a...

HCA 270 - Has anyone taken Axia's HCA 270? Need help on Checkpoint: Ration ...