Answer:
99
Step-by-step explanation:
The statement that is correct and that best describe the graph of 3x - 2y = 4, it is a straight line joining the points (0,-2), (2,1), and (-2,-5). The best way to get all the points is to simply graph them, when you graph the point you can easily get the answer in this question. The answer in this question is B. It is a straight line joining the points (0, −2), (2, 1), and (−2, −5).
Answer:
C. Seis veces en el año.
Step-by-step explanation:
Un año consiste en 12 meses y seis períodos de dos meses (bimestres). Entonces, el convenio de pago establece claramente que se 18 por ciento de interés cada dos meses, lo cual significa que se paga seis veces al año por concepto de intereses.
Entonces, la respuesta correcta es C.
Let's attack this problem using the z-score concept. The sample std. dev. here is (0.25 oz)/sqrt(40), or 0.040. Thus, the z score representing 3.9 oz. is
3.9 - 4.0
z = -------------- = -2.5
0.040
In one way or another we must find the area under the std. normal curve that lies to the left of z = -2.5. Use a table of z-scores or a calculator with built-in statistics functions. According to my TI-83 Plus calculator, that area is
0.006. One way of interpreting this that with so small a standard deviation, most volumes of coffee put into the jars are very close to the mean, 4 oz.