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ehidna [41]
3 years ago
12

Easy points :) 2*2*2+2-1

Mathematics
1 answer:
kipiarov [429]3 years ago
7 0

Answer:

9

Step-by-step explanation:

2*2=4*2=8+2=10-1=9

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Cot0 + tan0 = sec0csc0
Lelechka [254]

Answer:

??

Step-by-step explanation:

7 0
3 years ago
If the distribution is really N ( 5.43 , 0.54 ) , N(5.43,0.54), what proportion of observations would be less than 5.05 ? 5.05?
Ipatiy [6.2K]

Answer:

P(X

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

Step-by-step explanation:

Previous concepts

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 Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable of interest for a population, and for this case we know the distribution for X is given by:

X \sim N(5.43,0.54)  

Where \mu=5.43 and \sigma=0.54

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(Z

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

6 0
3 years ago
the thrill amusement park charges an entry fee of 40$ and an additional 5$ pre ride, x. The splash water park an entry fee of 60
MrRissso [65]

45/X + 63/X= 108/X = Y, X= 108 divided by 2 = y, y=54


8 0
3 years ago
10 to power of 1 times 17.55
photoshop1234 [79]

Answer:

175.5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Round 17242 to the nearest ten thousandth
MrRa [10]
Its 20,000. If you look of make a number line use numbers 17,242 - 20,000… <3
7 0
2 years ago
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