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2 years ago

What is the conversion factor to convert kilometers to miles?

Mathematics

1 answer:

Ierofanga [76]2 years ago

8 0

Answer: approximately km*1.61=m

Step-by-step explanation:

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What is the dependent variable in y=x+12

erma4kov [3.2K]

The independent variable is x

y is dependent on the value of x

8 0

1 year ago

During an exit survey after a play, 75 of the first 120 people said they did not like the play.

MA_775_DIABLO [31]

I think its A= 62% and B=37% and sorry for the answer Brainly asked me

4 0

3 years ago

The cookies in Sarah's cookie jar decrease by 5 cookies every 2 days. Which rational number does NOT describes the scenario? A)

andre [41]

Answer:

Step-by-step explanation:

3 0

3 years ago

The owner of Maumee Ford-Mercury-Volvo wants to study the relationship between the age of a car and its selling price. Listed be

nadya68 [22]

Answer:

a= 13.15 years

b= -0.62 years/$

Step-by-step explanation:

Hello!

Given the variables

Y: Age of a used car. (years)

X: Price of a sold used car. ($000)

The linear regression model is:

E(Y)= α + βXi

The estimated equation is:

^Y= a + bXi

$a= (\frac{sumY_i}{n} ) - b(\frac{sumX_i}{n} )$

a= 13.15 years

$b= \frac{(sumX_iY_i-\frac{(sumX_i)(sumY_i)}{n} }{sumX_i^2-(\frac{(sumX_i)^2}{n} )}$

b= -0.62 years/$

Then ^Y= 13.15 - 0.62Xi

Mean Y= 8.92

Mean X= 6.91

∑Y= 107

∑Y²=1009

∑X=82.90

∑X²=615.29

∑XY=712.9

Hope it helps!

5 0

3 years ago

The profit from a business is

GuDViN [60]

First of all we will understand the question!!

The question is saying that you are given a function and you have to find the value of x which will give the maximum profit... Lets solve it by finding the extrema using the vertex

 $\rm \: p(x) = - 5 {x}^{2} + 30x + 8$ 

Identify the coefficients a and b of the quadratic function

 $\rm \: p(x) = { - 5x}^{2} + 30x + 8 \\ \rm \: a = - 5 \: and \: b \: = 30$ 

Since a<0, the function has the maximum value at x, calculated by substituting a and b into x=-b/2a

$\rm \: x = \frac{30}{ 2 \times (- 5)}$

Solve the equation for x

$\rm \: x = 3$

The maximum of the quadratic function is at x=3

3 0

1 year ago