All categories

3 years ago

Please helppp !! 15 points ‍♂️

Mathematics

1 answer:

VladimirAG [237]3 years ago

4 0

Answer:

FIRST BOX: 4

SECOND BOX: x-1

Step-by-step explanation:

We notice that the first slot says you need to be betwist -1 and 1(or -1) in order to apply.

But the graph is straight, and the y value stays at 4, meaning that x=4 all the time if betwist -1 and 1 or being neg 1.

x=4 then.

In the other case, we notice that the points subtract by one in the graph (x,x-1)

Therefore, x-1.

You might be interested in

A law school administrator was interested in whether a student's score on the entrance exam can be used to predict a student's g

frutty [35]

Answer:

The correlation coeffcient for this case was provided:

r =0.934

And this coefficient is very near to 1 the maximum possible value, so then we can interpret that the relationship between the entrace exam score and the grade point average are strongly linearly correlated .

We can also find the $r^2$ who represent the determination coefficient and we got:

$r^2 = 0.934^2= 0.872$

And the interpretation for this is that a linear model explains appproximately 87.2% of the variability between the two variables

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

The correlation coeffcient for this case was provided:

r =0.934

We can also find the $r^2$ who represent the determination coefficient and we got:

$r^2 = 0.934^2= 0.872$

And the interpretation for this is that a linear model explains appproximately 87.2% of the variability between the two variables

8 0

3 years ago

Smoking can cause fatal damage to multiple human body systems. how does smoking directly affect the cardiovascular system

-Dominant- [34]

Smoking directly affects the cardiovascular system by r<span>educing the amount of oxygen that reaches the body's tissues which increase the risk of blood clots that damages blood vessels which doubles the risk of stroke (reduced blood flow to the brain).</span>

5 0

3 years ago

24 xу - 2 2xy - 2x What's the answer

atroni [7]

The answer is 2xy-2x you get this by combining like terms

8 0

3 years ago

The diagram shows line MN graphed on a coordinate plane.

san4es73 [151]

Answer:

slope has a gradient of -3/5

Step-by-step explanation:

change in y / change in X

-6 / 10

for the length use Pythagoras

3 0

2 years ago

What is the slope of a line perpendicular to y = -3/7x + 1 (Answer as an improper fraction and not a mixed number or decimal)

Veseljchak [2.6K]

For lines to be perpendicular they would need to have opposite slopes, so for a slope of -3/7 the slope of a perpendicular line would be 7/3

7 0

3 years ago