1ª QUESTÃO) (IFS – 2013) A parábola representada pela função abaixo, corta o eixo das abscissas nos pontos: (A) (0, 0) e (3, 0)
(B) (0, 1) e (0, 2)
(C) (1/2, 0) e (1/3, 0)
(D) (0, 6) e (0, – 5)
(E) (1/6, 0) e (−1/5, 0)

How many solutions does the nonlinear system of equations graphed below have?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer