3 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!

Mathematics

2 answers:

kkurt [141]3 years ago

6 0

Answer:

Step-by-step explanation:

drek231 [11]3 years ago

5 0

B hope I helped have a nice day

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Simplify 3(x+2)-5x 1. 6-2x 2. 8x+2 3.-2x+2 4.2x+6

gulaghasi [49]

Answer:

-2x + 6

Step-by-step explanation:

Step 1: Write expression

3(x + 2) - 5x

Step 2: Distribute

3x + 6 - 5x

Step 3: Combine like terms

-2x + 6

7 0

2 years ago

Read 2 more answers

In 2006,the General Social Survey (which is conducted uses a method similar to simple random sampling) included a question that

mars1129 [50]

Answer:

Assumptions are not met. Can not make confidence interval.

Step-by-step explanation:

In the General Social Survey, sample size is 1514.

The proportion of those who see themselves social is $\frac{470}{1514}$ ≈ 0.31

To give an 95% confidence interval, we should be able to calculate margin of error of the sample mean, which is given by the formula

M± $z*\frac{s}{\sqrt{N} }$ where M is the mean of the sample (in the General Social Survey it is 0.31), z is z-score for the 95% confidence level(approx. 1.94), s is the standard deviation of the sample, N is the size of the sample(in this example it is 1514).