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shepuryov [24]
3 years ago
9

Please help me out thanks

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
8 0
Addition problems that need annex zeros:

Choice A. - 0.54 + 12.1

Choice C. - 25.59 + 1.2

Choice D. - 23.04 + 124.1 + 34.06

Hope I was able to help! :)
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Vail Resorts pays part-time seasonal employees at ski resorts on an hourly basis. At a certain mountain, the hourly rates have a
notsponge [240]

Answer:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

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 that represent the hourly rates of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,3)  

For this part we want to find a value a, such that we satisfy this condition:

P(X>13.16)=0.20   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.80 of the area on the left and 0.20 of the area on the right it's z=0.842. On this case P(Z<0.842)=0.8 and P(z>0.842)=0.20

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

3 0
2 years ago
What equation of a line is parallel to y=3/5x+2
lozanna [386]

Answer:

any equation that has the same slope as the original line (3/5x)

Step-by-step explanation:

examples:

y= 3/5x + 5

y= 3/5x - 3

8 0
3 years ago
Nth term of 4,10,16,22
sergij07 [2.7K]
The answer is a(n) = 6n - 2
3 0
3 years ago
Which of the following is a solution to 2cos x + 1 = 0? 60° 120° 210° 300°
klasskru [66]
Rewrite   <span>2cos x + 1 = 0    as:

2 cos x = -1, and then cos x = -1/2

x must be in Quadrant II or Quadrant III, since the adj. side is negative.

Note that the angle 120 has adj. side -1 and hyp 2.  So 120 degrees is one solution.  

Now what about a possible 2nd solution, to be found in Quadrant III?  That would be -120 degrees, which has the same terminal line as does 240 degrees.

No soap.

So, the solution is 120 degrees.</span>
6 0
3 years ago
Read 2 more answers
Someone please help me please
eduard
90 + 3 + 4 = 97


Your answer is 97.
4 0
3 years ago
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