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julsineya [31]
3 years ago
8

For problem 2,f(2) =

Mathematics
1 answer:
just olya [345]3 years ago
6 0

Answer:

4f

Step-by-step explanation:

Simplify & Multiply :)

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NEED HELP ASAP PLS
harina [27]

Answer:

2/1 or 2overrun

Step-by-step explanation:

You can see that the rais/run for C to D is 2/1. So that would be the slope.

5 0
3 years ago
Carl has 16 cd’s and 1/4 of them are classical music how many cd’s are classical? How many are not?
alexandr402 [8]

Answer:

4

Step-by-step explanation:

since the fraction is 1/4 you can multiply 4 by 4 and get sixteen and 4x1=4

5 0
3 years ago
Read 2 more answers
Assuming that the population is normally​ distributed, construct a 9090​% confidence interval for the population mean for each o
jasenka [17]

Given:

Set A: 1 4 4 4 5 5 5 8

Mean: 4.5

Standard dev: 1.9

 

Set B:

Mean: 4.5

Standard dev: 2.45

 

% =  90 

Set A:

Standard Error, SE = s/ √n =    1.9/√8 = 0.67  

Degrees of freedom = n - 1 =   8 -1 =  7   

t- score =  1.89457861

<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.67 = 1.272685913

Lower Limit of the confidence interval = x-bar - width =      4.5 - 1.272685913 = 3.23

Upper Limit of the confidence interval = x-bar + width =      4.5 + 1.272685913 = 5.77

The 90% confidence interval is [3.23, 5.77]

 

Set B:

Standard Error, SE = s/ √n =    2.45/√8 = 0.87  

Degrees of freedom = n - 1 =   8 -1 = 7   

t- Score =  1.89457861

<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.87 = 1.641094994

Lower Limit of the confidence interval = x-bar - width =      4.5 - 1.641094994 = 2.86

Upper Limit of the confidence interval = x-bar + width =      4.5 + 1.641094994 = 6.14

The 90% confidence interval is [2.86, 6.14]

 

<span>We can obviously see that sample B has more variation in the scores than sample A. The fact that the standard deviation is 2.45 for B and 1.9 for A). Therefore, they yield dissimilar confidence intervals even though they have the same mean and range.</span>

6 0
3 years ago
Guys do you know this?
TEA [102]

Answer:

That would be 2/7

Step-by-step explanation:

Using substitution. x^2 +x+1 at 1 is 7

sqrt4 is 2

2/7

6 0
2 years ago
45% of what distance is 135 miles
horrorfan [7]
300 miles. Hope it helps
8 0
3 years ago
Read 2 more answers
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