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Whitepunk [10]
2 years ago
7

Help pls

Mathematics
1 answer:
Troyanec [42]2 years ago
3 0

Answer:

Political and economic changes since the fall of communism ... Generally, Central and Eastern Europeans approve of shift to ... In most of the countries surveyed, those with more education are more ... believe changes have had a good influence in Russia and Ukraine. ... What We Know About Gen Z So Far.

Step-by-step explanation:

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Birth weights in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495 g. The Newport
s344n2d4d5 [400]

Answer:

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

Step-by-step explanation:

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

X \sim N(3420,495)  

Where \mu=3420 and \sigma=495

We are interested on this probability

P(2450

And we can use the z score formula given byÑ

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

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

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

6 0
3 years ago
The fifth term of an arithmetic sequence is 23 and the 12th term is 72? Determine the first three terms of the sequence and the
Arisa [49]

Answer:

the first term is a1

the distance between the numbers is d

we have:

a5 = a1 + 4d = 23

a12 = a1 + 11d = 72

so we have the equation:

a1 + 4d = 23

a1 + 11d = 72

=> a1 = -5

d = 7

=> an = -5 + 7(n - 1) = 7n - 12

with an = 7n - 12

=> a2 = 2

a3 = 9

so the first three terms is -5; 2; 9

6 0
3 years ago
To date, this year, Company XYZ has sold 450 units. They sell units at an average rate of 15 per week. The company wants to sell
Arisa [49]
The inequality used to solve for x is x=750/15
5 0
3 years ago
What is the factorization of x^2-6x+5
zimovet [89]
The answer is (x-5) (x-1)
5 0
3 years ago
A car with a mass of 1,500 kg broke down on the side of the road. How much force will be required
Schach [20]

Answer:

the answer is 4,500kgm/s2

Step-by-step explanation:

force= mass × acceleration

f = 1500 \times 3 \\  = 4500kgm {s}^{ - 2}

7 0
2 years ago
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