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NARA [144]
3 years ago
7

A line of best fit predicts that when x equals 28 y will equal 27.255 but y actually equals 26 what is the residual in this case

Mathematics
1 answer:
Kobotan [32]3 years ago
4 0

Answer:

The answer is -1.255 for residual value.

Step-by-step explanation:

We are tasked to solve for the residual value given that when x equals 29, y will be equals to 27.255. But, when it is tested, y actual value is 26. The formula in solving residual is shown below:

Residual value = Observed value - predicted value

Residual value =  26 - 27.255

Residual values = -1.255

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Mnenie [13.5K]

Step-by-step explanation:

4 {x}^{2}  + 5x + 6x = 3x - 2 {x}^{2} + x \\  4 {x}^{2}   + 11x = 4x - 2 {x}^{2}  \\ 4 {x}^{2}  + 2 {x}^{2}  = 4x  - 11x \\ 6 {x}^{2}  =  - 7x \\ 6x = -  7 \\ x =  \frac{ - 7}{6}  \\ thank \: you

6 0
3 years ago
Read 2 more answers
Find two numbers the quotient is between. Then estimate the quotient 284 divided by 5
Pavel [41]
The quotient is 284 divided by 5, or

284
-----         If you mult. numerator and denominator by 2, you get 578/10, or 57.8.
   5

Try the numbers 550 and 600 (because 574 is between them).  Now divide 550 and 600 by 10; the results will be 55 and 60.  The actual value of 284/5 is between 55 and 60:  57.8 (which you can verify with a calculator).  
4 0
4 years ago
9.2.8.
ELEN [110]

We have been given that the number of students enrolled at a college is 18,000 and grows 4% each year. We are asked to find number of students after 22 years.

We will use exponential growth function to solve our given problem.

We know that an exponential growth function is in form y=a\cdot (1+r)^x, where

y = Final value,

a = Initial value,

r = Growth rate in decimal form,

x = Time

4\%=\frac{4}{100}=0.04

y=18,000\cdot (1+0.04)^x

y=18,000\cdot (1.04)^x

To find number of students after 22 years, we will substitute x=22 in our function.

y=18,000\cdot (1.04)^{22}

y=18,000\cdot (2.3699187915049464)

y=42,658.53824

y\approx 42,659  

Therefore, there will be approximately 42,659 students after 22 years.

4 0
3 years ago
Least to greatest 7.618,7.681,7.6801,7.0681
maw [93]
7.0681
7.618
7.681
7.6801
3 0
3 years ago
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The sum of two and the quotient of a number xxx and five. <br><br> write an equation
Alina [70]

we have to write an equation

The sum of two and the quotient of a number x and five

Firstly, we will find the quotient of a number x and five

For finding quotient , we always divide

For example: if we have to find quotient of a number 10 and 2

so,

quotient is

=\frac{10}{2}

Similarly , we have to find

the quotient of a number x and five

so, the quotient is

=\frac{x}{5}

now, we need to add 2 with quotient

so, we will get equation as

=2+\frac{x}{5}................Answer

8 0
3 years ago
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