Un topógrafo quiere saber cuál es la longitud de un túnel construido en una montaña. De acuerdo a sus instrumentos, él se encuentra a 243 metros de una entrada del túnel, en un ángulo de 47 con la perpendicular. Además de acuerdo a sus instrumentos, él se encuentra a 186 metros de la otra entrada del túnel, en un ángulo de 27 con la perpendicular. Basándose en estas medidas, calcular la longitud total del túnel.
No redondear los cálculos intermedios. Redondear la respuesta a la décima más cercana.

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.