This morning Greg’s car had 25.25 of fuel now 1.4 gallons are left how much fuel did Greg use
1 answer:
You might be interested in
The two labeled angles are alternate interior angles, and as such, they are the same.
From this result you can build the equation
and solve it for x: subtract 13x from both sides to get
and add 2 to both sides to get
Check: if we plug the value we found we have
So the angles are actually the same, as requested.
Answer:
En 5 horas se habrá enterado todo el pueblo.
Step-by-step explanation:
Sabemos que en un pueblo 5 personas escucharon una noticia.
Una hora más tarde, cada una de ellas le contó la noticia a otras 5.
Luego, éstas contaron la noticia a otras 5 y así sucesivamente.
Nadie cuenta ni escucha la noticia más de una vez y en ese pueblo hay un poco más de 19000 habitantes.
La ecuación a desarrollar para resolver el problema es la siguiente :
Comenzamos con 5 personas que escucharon la noticia a la ''hora 0''.
Una hora más tarde, cada una de ellas le contó a 5 personas, es decir , pasada la primera hora tendremos :
(I)
Las 5 personas originales de la ''hora 0'' más 25 personas que se enteraron pasada la primera hora. La ecuación que planteamos es la siguiente :
(II)
Buscamos el valor de que satisface la ecuación (II).
Probando y realizando las sumas encontramos que :
El valor de que satisface (II) es
.
Para hallar el número de horas nos fijamos que en (I) el valor del mayor exponente del 5 es el número 2. Para ese valor 2, el tiempo que pasó es una hora.
Entonces para nuestro , el número de horas que pasaron son 5 horas (1 menos que el valor de
)
Todo el pueblo se habrá enterado en 5 horas de la noticia.
Answer:
The confidence interval for the mean is given by the following formula:
And the confidence interval is given by:
(0.123, 0.177)
And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by and
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
And the confidence interval is given by:
(0.123, 0.177)
And for this case the interval contains the value 0.16, so then we can conclude at 5% of significance that the true proportion is not different from 0.16
Answer:
- 5n square root 5
- 6 square root 6v
- 16ki square root 2
- 10m square root m
- 4p square root 5p
- 3pi square root 5
