What is the exact value of sin 170⁰ cos 55⁰ + cos 170⁰ sin 55⁰?

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

What situation is an example of an observational study

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing