10) Assinale F para as afirmações falsas e V para as verdadeiras: A) Fonte histórica é todo vestígio deixado por pessoas que viveram em tempos passados. ( )
B) Os historiadores acreditam em verdades absolutas, pois pesquisas e estudos buscam fornecer uma versão única
definitiva de um acontecimento. ( )
D) Escritos oficiais e particulares, construções, cartas, depoimentos, pinturas, etc., são considerados fontes
históricas. ( )​

Suppose that the firm cherryblossom has an orchard they are willing to sell today. the net annual returns to the orchard are expected to be $50,000 per year for the next 20 years. at the end of 20 years, it is expected the land will sell for $30,000. calculate the market value of the orchard if the market rate of return on comparable investments is 16%.

In the 1970s, kmart used blue light specials to encourage customers to flock to a particular department having a temporary sale. a spinning blue light activated for approximately 30 seconds, and then an in-store announcement informed shoppers of the special savings in the specific department. over time, loyal kmart shoppers learned to flock to the department with the spinning blue light before any announcement of special savings occurred. if kmart was employing classical conditioning techniques, what role did the spinning blue light play?

Find the zeros of the polynomial 5 x square + 12 x + 7 by factorization method and verify the relation between zeros and coefficient of the polynomials