Answer:
2b. 3(2-x)
2c. add the 5x-10
5(x-2)
3.its suppose to be 12x+3=3(4x+1)
3(4x+1)=12x+3
Step-by-step explanation:
Answer:
so basically u should first make an average and then divide them by how much there is. then add all of the numerals togetehr and subtract. you'll get the answer.
Step-by-step explanation:
89 is prime 16 is composite 17 is prime 25 is composite
Using the z-distribution, a sample of 609 nickels has to be weighed.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:

The margin of error is:

In which:
is the sample mean.
is the standard deviation for the population.
For this problem, the parameters are:

We solve for n to find the sample size, then:





n = 608.9
Rounding up, a sample of 609 nickels has to be weighed.
More can be learned about the z-distribution at brainly.com/question/25890103
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1)
solve for y2
y2 = d + y1
2)
solve for b
b = a - c
3) solve for y1
y1 = y2 - d