Data for length of the tail (in millimeters) and age (in days) of tadpoles is entered into a statistics software package and results in a regression equation of ŷ = 15 - 1.5x.

What is the correct interpretation of the slope if the length of the tail is the response variable and the age is the explanatory variable?

Answers

Answer 1

Using the slope concept, it is found that the correct interpretation is that each day, the length decreases by 1.5 millimetres.

The equation of a line has the following format:

[tex]y = mx + b[/tex]

In which

m is the slope, which is the rate of change, that is, how much y changes when x changes by 1.b is the y-intercept, which is the value of x when y = 0.

In this problem, the length of the tail, in millimetres, after x days, is given by:

[tex]y = 15 - 1.5x[/tex]

The slope is of [tex]m = -1.5[/tex], which means that each day, the length of the tail decreases by 1.5 millimetres.

A similar problem is given at https://brainly.com/question/13967935


Related Questions

Find the perimeter P of
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lab

Answers

Answer:

P = 3.6 + 6 + 3.6 + 6 = 19.2 units

Step-by-step explanation:

distance between (-3,-2) and (-5,-5) =

Sqrt[(-5-3)^2+(-5 - -2)^2]

Sqrt (4+9) = 3.6

d = (-5,-5) and (1,-5) =

Sqrt[(1 - - 5)^2 + (-5 - - 5)^2]

= sqrt (36 + 0) = 6

d = (1,5) and (3,-2)

Sqrt[(1 - - 3)^2 + (-5 - - 2)^2]

Sqrt(4+9) = 3.6

d = (3,-2) and (-3,-2)

Sqrt[(-3-3)^2 + (-2 - - 2)^2]

Sqrt (36+0) = 6

Sarah's grandmother has a square blanket that covers an area of 25 square feet. Sarah wants to put a string of pearls around the sides of the blanket. How many feet long will the string of pearls have to be for Sarah to complete the job?

Answers

Answer:

20 ft

Step-by-step explanation:

area of square = (side)^2

area of square = 25 ft^2

(side)^2 = 25 ft^2

side = 5 ft since (5 ft)^2 = 25 ft^2

The side of the square measures 5 ft.

All around the square is the perimeter.

perimeter = 4 * side

perimeter = 4 * 5 ft

perimeter = 20 ft

Answer: 20 ft

4. Lincoln began his speech, “Four score and seven years ago....” How many years is four score and seven? (Hint: A score is 20 years.) Can someone help me?​

Answers

87 years I think…. If a score is 20 years and four scores have passed you do 4x20 = 80. 80 plus the seven 80+7 = 87

can someone plz help me with this

Answers

Answer:

option D .....11

Option c 36

*EASY* I WILL GIVE BRAINLIST TO THE FIRST RIGHT ANWSER

Ruby is visiting San Francisco. From her hotel she walks 2 blocks east an 4 blocks north to a coffee shop. Then she walks 4 blocks west and 3 blocks north to a museum. Where is the museum in relation to her hotel?

here's the format for the answer if it helps : The museum is _ blocks _(West/East) and _ blocks _(South/North) of her hotel.

Answers

Answer:

Step-by-step explanation:

The amount of cleaning solution a company fills its bottles with has a mean of 33fl oz and a standard deviation of 1.5fl oz The company advertises that these bottles have 32fl oz, of cleaning solution.

Answers

Answer:

Mean: 30 mL

Standard Deviation: 45mL

Step-by-step explanation:

Which ordered pairs are solutions to the inequality y-2x less than or equal to -3

Answers

Answer:

(0, −3)

(2, −2)

(1, −4)

(6, 1)

(−3, 0)

Step-by-step explanation:

try plugging them in, might seem tedious, but it's the best way to practice. if you plug in a pair and the left side of the equation is less than or equal to 6, it's the right answer.

Ey pls help me anyone pls

Answers

Answer:

we cant read the whole question so I cant help you.

Step-by-step explanation:

Answer:

I will do 1-4 and explain because I dont have the time to do all of this.

1=130 2=130 3=134? 4=63 Just add up the numbers and subtract them from either 90 180 or 360, how to know which number to add up to is easy, just see if the sum of the numbers added makes a number above one of those numbers, for example if you find one that the sum is larger then 90 but smaller then 180 then subtract the sum from 180.

Step-by-step explanation:

Is it possible to construct a triangle with the side lengths of 6 cm 11cm and 13 cm why or why not?

Answers

Answer:

yes because....

Step-by-step explanation:

6 + 11 > 13

Martha Stewart has developed a new perfume. She decides to test its side effects by spraying the perfume in 31 randomly chosen houses. She records the level of antigens that create an allergic response. If the antigen level is high enough, the person will go into anaphylactic shock. The mean of her sample is a lot bigger than the median, but Martha hopes that a 90% confidence interval will contain zero. Her confidence interval is (0.116, 1.884). Disappointed, she offers you $144 to find an acceptable, realistic way to change the confidence interval to contain zero. What could you say to earn the money

Answers

The acceptable and realistic ways to to change the confidence interval to contain zero are;

Martha should decrease x-bar by providing medicine to treat shock to the perfume users.Decrease sample size than 30Increase the confidence level, till the interval contains zero

Reasons:

The confidence interval is given by the following formula;

[tex]CI=\bar{x}\pm t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex]

When the mean, [tex]\overline x[/tex], is positive and large, both values, [tex]\bar{x}+ t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and [tex]\bar{x} -t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], will be positive.

Therefore, Martha has to either intervene to reduce the mean also known as x-bar

Increasing the confidence level will increase the allowable error such that [tex]\bar{x} < t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and the interval will contain zero

Therefore;

Martha should decrease x-bar, [tex]\overline x[/tex], by providing medicine to treat shock to the perfume usersUse a much smaller sample size, n, such that [tex]t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}} > \bar{x}[/tex]

Increase the confidence level to 95% or 99%, thereby increasing the error bound

Learn more here:

https://brainly.com/question/13034570

Can anyone help me with this?

Answers

it does not show the question

I need help ASAP! Is this linear increase decrease or exponential growth decay

Answers

Option B: Exponential growth

If  for values of x values of y increases and forms a geometric sequence then it would be an exponential growth function because geometric sequence is an exponential function and since, it is increasing hence, an exponential growth.  

Option A is incorrect because y is not decreasing  

Option C and D are incorrect because geometric sequence can never be linear since, it gives common ratio.

An election is over and a new student body president has been elected. The new president received 3 votes for every vote received by his opponent. The new president received 2193 votes. How many votes did his opponent receive?

Answers

731 votes. Explanation: if his votes are 3:1 of his opponent’s votes. Divide 2193 by 3 to get 731 votes

look at the pictuse below i would copy and paste but I can't copy a picture

Answers

Answer:

I can't really see it so i don't know I'm sorry

Answer:

15

Step-by-step explanation:

- A candy clerk has three times as many kilograms of chocolate creams as peanut clusters.
The clerk has 48 kg of the two candies altogether. How many kilograms of peanut clusters
does the clerk have?

Answers

The kilograms of peanut clusters that the clerk has will be 12 kilograms of peanut flusters.

Let the kilograms of peanut clusters = x

Let kilograms of chocolate creams = y = 3x

Therefore, from the information given, the equation to solve the question will be:

x + y = 48 kilograms

x + 3x = 48 kilograms

4x = 48 kilograms

x = 48 kilograms / 4

x = 12 kilograms

Therefore, the kilograms of peanut clusters that the clerk has will be 12 kilograms of peanut clusters.

In conclusion, the correct option is 12 kilograms.

Read related link on:

https://brainly.com/question/24959144

If the diameter is 7.5 what is the radius?
If the radius is 17 what is the diameter?
If the diameter is 21 what is the radius?
If the radius 813 what is the diameter?

Answers

Answer:

Here is the answer to your question its fairly simple.

Step-by-step explanation:

3.75 is the radius

34 is the diameter

10.5 is the radius

1626 is the diameter

Let f(x) = x^3 + 2x^2 + 3x + 1 and g(x)= 4x-5 Find f(x) x g(x)

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

Given :

[tex]f(x) = {x}^{3} + 2 {x}^{2} + 3x + 1[/tex]

[tex]g(x) = 4x - 5[/tex]

let's solve for f(x) × g(x) :

[tex]( {x}^{3} + 2x {}^{2} + 3x + 1)(4x - 5)[/tex]

[tex]4x {}^{4} - 5 {x}^{3} + 8 {x}^{3 } - 10 {x}^{2} + 12 {x}^{2} - 15x + 4x - 5[/tex]

[tex]4 {x}^{4} + 3 {x}^{3} + 2 {x}^{2} - 11x - 5[/tex]

therefore, correct choice is : D

What is 1 plus 1 in active numbers

Answers

It’s 14

Hoped t helped

6. a + 6 < -2; a = -8
I
0. yes
P. no

Answers

Answer:

yes

Step-by-step explanation:


HELP !! Look at the photo please

Answers

Where is the photo bc in order for me to help you I need the picture

Jessie made 15 sales calls yesterday. Clay made n calls. If clay made 3 times as many sales calls as jessie, choose the equation thats shows how many sales calls clay made yesterday

Answers

It would be

N = 15 x 3

Answer:

n = (15)(3) = 45

Step-by-step explanation:

This problem is very simple, all we need to do is take the information we get and put it in equation form.

Jessie made 15 calls, Clay made 3 times as many as her. 15 times 3 is 45. Put in equation format it will look like:

n = (J) * (3)

n is how many calls Clay made, and J is how many calls Jessie made.

A+B + C = 180
A= 36
What is x

Answers

Answer:

which is x here

please write complete question

What is the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4) ?

Answers

Answer:

y = -9/11x - 28/11

Step-by-step explanation:

y2 - y1 / x2 - x1

4 - (-5) / -8 - 3

9/-11

= -9/11

y = -9/11x + b

4 = -9/11(-8) + b

4 = 72/11 + b

-28/11

Right triangle CDE has its right angle at vertex
D. The length of DE is 8 feet and the length of
CE is 17 feet. What is the length, in feet, of CD?
A) 11
B) 12
C) 14
D) 15

Answers

The answer is A 11 feet

The length of the side CD which is the base of the right triangle CDE is 15 feet which is option D.

We have,

We can use the Pythagorean theorem to solve for the length of the height CD in the right triangle CDE.

Where CE is the hypotenuse and De is the base.

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

In this case, we have:

CD² + DE² = CE²

Plugging in the given lengths:

CD² + 8² = 17²

CD² + 64 = 289

CD² = 289 - 64

CD² = 225

CD = √225

CD = √15²

CD = 15

Thus,

The length of the side CD which is the base of the right triangle CDE is D. 15 feet.

Learn more about the Pythagorean theorem here:

https://brainly.com/question/14930619

#SPJ3

-2 as a decimal
Help if you can ik it’s simple I’m just very tired :)

Answers

Not way to keen on it but it might be -0.02

Hope it helps!
2%= 0.02.. and changing it to a negative would be -0.02!

I hope this helps! & Let me know if you have any questions!

Mark this as Brainliest if you get a chance:)

What is the vertical change from Point A to Point B?

What is the horizontal change from Point A to Point B?

What is the rate of change shown on the graph? Give
the answer as a decimal rounded to the nearest tenth, if
necessary

Answers

Answer:

The vertical change is 1

The horizontal change is =2

The rate of change  .5

Step-by-step explanation:

Point A is at (2,1)

Point B is at (4,2)

The vertical( up and down) change is (2-1) = 1

The horizontal ( left and right) change is (4-2) =2

The rate of change is vertical over horizontal (1/2) = .5

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

1. Vertical change :

[tex]2 - 1[/tex]

[tex]1[/tex]

2. Horizontal change :

[tex]4 - 2[/tex]

[tex]2[/tex]

3. Rate of change :

[tex] \dfrac{y_2 - y_1}{x_2 - x_1} [/tex]

[tex] \dfrac{2 - 1}{4 - 2} [/tex]

[tex] \dfrac{1}{2} [/tex]

[tex]0.5[/tex]


Martina runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 20 minutes?

Answers

Answer:

2 and a half mile

Step-by-step explanation:

As she runs three miles in 25 minutes so she can run 2 and a half miles in 20 minutes because she needs five minutes to complete the third mile

2 1/2 Miles in 20 minutes. I hope
this helps!

can someone please help with this one?

Answers

Answer:

Website a is cheaper by 29 cents

Step-by-step explanation:

Last month, Donovan ran 48 miles. James ran m miles. Donovan ran 3 times as far as James. Which equation can be used to find m, the number of miles James ran?

Answers

Answer:

45

Step-by-step explanation:

78

A cyclist traveled 70km at a constant speed. Write down the formula that shows the dependence of the speed, v, on the time t. Find v(5), v(7), v(3.5)
HELP I WILL GIVE BRAINLIEST + 20 POINTS I REALLY NEED THIS

Answers

The equation which relates speed, V and time, t to the total distance traveled is 70 = Vt

70 = Vtv(5) = 14 V(7) = 10V(3.5) = 20

Since he is traveling at a constant speed, the relationship between, V and t can be written thus :

Distance = speed × time 70 = Vt

At time, t = 5

70 = 5VV = 70/5 = 14

At time, t = 7

70 = 7vV = 70/7 = 10

At time, t = 3.5

70 = 3.5vv = 70/3.5 = 20

Therefore, the relationship between V and t with distance is 70 = Vt

Learn more :https://brainly.com/question/23774048

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