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3 years ago

14

La distancia de la Tierra a Saturno es 5.95 x 108 y la distancia de la Tierra a Júpiter es 8.87 x 108. ¿Cuánto es la suma de las

dos distancias en Notación Científica?

1 answer:

ehidna [41]3 years ago

5 0

Answer:

no

Step-by-step explanation:

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Help ASAP pls will give BRAINLIEST

castortr0y [4]

46.3

Why?

7.4+7.2= 14.6

6.3+6.3= 12.6

10.5+8.6= 19.1

14.6+12.6+19.1= 46.3

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3 years ago

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I can graph it but how do I solve it

Rzqust [24]

I believe the answer is -13

6 0

3 years ago

A group of 59 randomly selected students have a mean score of 29.5 with a standard

algol [13]

Answer:

$29.5-1.671\frac{5.2}{\sqrt{59}}=28.37$

$29.5+1.671\frac{5.2}{\sqrt{59}}=30.63$

And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence

Step-by-step explanation:

Information given

$\bar X = 29.5$ represent the sample mean

$\mu$ population mean

s= 5.2 represent the sample standard deviation

n=59 represent the sample size

Confidence interval

The confidence interval for the true mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=59-1=58$

The Confidence interval is 0.90 or 90%, the significance is $\alpha=0.1$ and $\alpha/2 =0.05$ , and the critical value is $t_{\alpha/2}=1.671$

Now we have everything in order to replace into formula (1):

$29.5-1.671\frac{5.2}{\sqrt{59}}=28.37$

$29.5+1.671\frac{5.2}{\sqrt{59}}=30.63$

And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence

8 0

2 years ago

X - 3= -21 <br>This is so confusing:(

Aneli [31]

Answer:

$\huge\boxed{x=-18}$

Step-by-step explanation:

In order to solve this, we are trying to find the value of $x$ . Basically, $x$ is a placeholder for a number that is unknown. Some number minus 3 is equal to 21.

Our goal is to find $x$ . To do this we want to isolate $x$ on one side of the equation

$x-3=-21$

Let's add 3 to both sides.

$x-3 + 3 = -21+3\\\\-3 + 3 = 0\\\\x = -21+3\\\\x=-18$

Hope this helped!

6 0

3 years ago

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27- 2b greater or equal to - 6

dezoksy [38]

27-2b > -6
-2b > -6-27
-2b > -33
b < -33/-2 (you have to change the sign when you divide with a negative number)
b < 16.5
(all the signs are supposed to have a line under them to make them greater or equal or less than or equal to)

5 0

3 years ago