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December 18, 2014

December 18, 2014

Posted by **Ashley** on Monday, November 22, 2010 at 6:25pm.

- Math -
**Henry**, Tuesday, November 23, 2010 at 7:44pmTwo rt triangles are formed. The common ver. side represents the ht. of

the mountain. The 3.5 deg angle of elevation lies bet. the hyp and hor side of the larger triangle. The 9 deg

angle is located bet. the hyp and hor side of the smaller triangle.

tan3.5 = h / (x + 13),

h = (x + 13)tan3.5,

h = (x + 13)0.0612,

Eq1: h = 0.0612x + 0.7951,

tan9 = h/x,

Cross multiply:

h = xtan9,

Eq2: h = 0.1584x.

Substitute 0.1584x for h in Eq1:

0.1584x = 0.0612x + 0.7951,

0.1584x - 0.0612x = 0.7951,

0.0962x = 0.7951,

x = 0.7951 / 0.0962 = 8.27.

h = 0.1584 * 8.27 = 1.31 mi = ht of mt.

- Math -
**Rumana**, Friday, April 1, 2011 at 3:53pmEmily chooses two numbers.

She adds the two numbers together and divides the rusult by 2.

Her answer is 44

One Emily's numbers is 12

what is Emily's other numbers?

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