Jorge has a data set with the following values: 103, 91, 99, 106, and x. if the median value for this set is 99, what must be true? complete the explanation. for 5 ordered values, the median is the (select). since 106 and 103 > 99, they must be 4th and 5th, so x must (select) 99.

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

If m_b=mzd= 43, find mzc so that quadrilateral abcd is a parallelogram o 86 137 o 129 43 description