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3 years ago

2.08/4 i also need a explanation on it

Mathematics

2 answers:

Usimov [2.4K]3 years ago

6 0

You take off the decimal point, divide, and re-add the decimal point. .52

kramer3 years ago

3 0

Answer:

0.52

Step-by-step explanation:

First, I would do 2 divided by 4 is 0.5. Then I would do 0.08 divided by 4 and get 0.02. Finally, I would add 0.5 and 0.02 and get 0.52.

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Judy uses 7.5 pints of blue paint and white paint to paint her bedroom walls. 1/4 of this amount is blue paint, and the rest is

lianna [129]

Answer:

5.625 pints

Step-by-step explanation:

refer to pic

8 0

3 years ago

Suppose that at a state college, a random sample of 41 students is drawn, and each of the 41 students in the sample is asked to

ra1l [238]

Answer:

The confidence interval for 90% confidence would be narrower than the 95% confidence

Step-by-step explanation:

From the question we are told that

The sample size is n = 41

For a 95% confidence the level of significance is $\alpha = [100 - 95]\% = 0.05$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.05 }{2} }= 1.96$

For a 90% confidence the level of significance is $\alpha = [100 - 90]\% = 0.10$ and

the critical value of $\frac{\alpha }{2}$ is $Z_{\frac{\alpha }{2} } =Z_{\frac{0.10 }{2} }= 1.645$

So we see with decreasing confidence level the critical value decrease

Now the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

given that other values are constant and only $Z_{\frac{\alpha }{2} }$ is varying we have that

$E\ \ \alpha \ \ Z_{\frac{\alpha }{2} }$

Hence for reducing confidence level the margin of error will be reducing

The confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

Now looking at the above formula and information that we have deduced so far we can infer that as the confidence level reduces , the critical value reduces, the margin of error reduces and the confidence interval becomes narrower

3 0

3 years ago

Unit rate 9 strikes in 3 innings

Annette [7]

The unit rate is 3 strike in 1 inning.

6 0

3 years ago

Sam needs a web designer. Designer A is offering her services for an initial $550 in addition to $105 per hour. Designer B is of

Wewaii [24]

After two hours the prices will meet a 760

$550+105=655 |655+105= 760

660+50= 710 |710+50= 760

They meet in the second hour so in the second hour they will charge the same.

5 0

3 years ago

Please help ASAP! It’s due tmr

DIA [1.3K]

Answer:

I will tell you.

Step-by-step explanation:

a.-13

b.13

c.-25

d.25

e.20

f.-6

g.-22

h.-72

6 0

3 years ago