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notsponge [240]
3 years ago
12

Helppppppp pls........

Mathematics
2 answers:
Andreas93 [3]3 years ago
7 0

Answer:

the second option is correct

Step-by-step explanation:

the 2nd one because 1 white block equals to +1 and the x rod is basically positive. Positives are greater than negatives.

therfore x > -4

zimovet [89]3 years ago
4 0

Answer:

  • c. is the correct answer
<h3>Mark me as brain list</h3>
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Help please due today!
DochEvi [55]
12

Square of 13 equals 169

Square of 5 equals 25

169-25= 144

144 square root equals 12
7 0
2 years ago
Read 2 more answers
BRAINLY!! 20 POINTS!!
mario62 [17]
A. the mean remains the same. 

For more info: brainly.com/question/4249234

Hope this helps love!
7 0
2 years ago
Read 2 more answers
2+2-8-*456*7524+7+46426+*545/65/6213-543+3112+91456+210256488765454<br><br> Answer within 10 min
zvonat [6]

Answer:

My calculator said error and i tried looking it up it said error too. I'm sorry I tried, you'll have to do it by hand

Step-by-step explanation:

5 0
3 years ago
Need help with this problem
lions [1.4K]
Since the shape is a square, it has 90° angles.

if cut in half, it creates a 45-45-90 triangle.
using this, you can use the ratio of 1:sqrt2 to find x. so the ratio would be x:6 to 1:sqrt2.

divide 6 by sqrt2 to find x, and then rationalize for it to become 6sqrt2/2, which would simplify even further to 3sqrt2
8 0
2 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
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