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ra1l [238]
3 years ago
9

Solve for u 4u=6.4 PLEASE HELP

Mathematics
2 answers:
Ahat [919]3 years ago
7 0
Divide 4 on both sides and u= 6.4/4 which the answer is equal to 1.6
Slav-nsk [51]3 years ago
7 0

Answer:

1.6

Step-by-step explanation:

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The First National Bank of Wilson has 600 checking account customers. Recent sample of 50 of these customers show 29 have a visa
uranmaximum [27]

Answer:

0.58 - 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.466

0.58 + 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.694

The 90% confidence interval would be given by (0.466;0.694)

Step-by-step explanation:

The estimated proportion of interest would be:

\hat p=\frac{29}{50}= 0.58

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by \alpha=1-0.90=0.1 and \alpha/2 =0.05. And the critical value would be given by:

z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64

The confidence interval for the mean is given by the following formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

If we replace the values obtained we got:

0.58 - 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.466

0.58 + 1.64\sqrt{\frac{0.58(1-0.58)}{50}}=0.694

The 90% confidence interval would be given by (0.466;0.694)

4 0
4 years ago
I need helpppppo!!! (: yes
Hatshy [7]

Answer:

2/5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Factor this expression completely.
Orlov [11]

Answer:

A

Step-by-step explanation:

5 and 7 are both common factors of 35 and 40

Looking at the options you can eliminate C and D right away because 7 times 8 = 56 and not 40 like the problem is asking.

This leaves A and B. Looking at the equation the difference between the two are the + and -

Using the original equation (35x-40) as reference we see that it subtracts the two variables. Therefore leaving A as the answer

5 0
3 years ago
Hi does anybody know the answer
olasank [31]

Answer:

wouldn't it be 800000

Step-by-step explanation:

5 0
4 years ago
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Suppose a square has side length equal to 16 inches. a circle with radius equal to 8 inches is inscribed inside the square. what
astraxan [27]
Well the area of the square is is 54.94^2 but the area of the circle is <span>201.06^2. I hope this helped ^^</span>
8 0
4 years ago
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