a) Write an equation for the line of best fit.


Y=-0.007x+13.713


5. The data below shows the population of a city,


In millions of people, since 1950.


Year Population


1950 1.75


1960 1.68


1970


1.52


1980


1.16


TO


b) Estimate the population of the city in 2020.


1990


1.04


2000


0.98

Answers

Answer 1

Answer  

Step-by-step explanation:

In millions of people, since 1950


Related Questions

-3x + 4y = -15 and 4x - y = -19

Answers

Answer:x = -7y = -9Step-by-step explanation:-3x + 4y = -15

        4x - y = -19

=> -3x + 4y = -15

       4(4x - y) = 4(-19)

=> -3x + 4y = -15

            16x - 4y = -76

=> 13x = -91=> x = -7

Now, let's substitute the 'x' value in the equation.

=> -3(-7) + 4y = -15=> 21 + 4y = -15=> 4y = -21 - 15=> 4y = -36=> y = -9Conclusion:

Therefore, the answers are:

x = -7y = -9

Hoped this helped.

[tex]BrainiacUser1357[/tex]

Answer:

(-7, -9).

( x = -7 and y = -9)

Step-by-step explanation:

-3x + 4y = -15  

  4x - y   = -19

Multiply second equation by 4:

16x - 4y = -76

Add this equation to the first to eliminate y:

13x = -15 + -76

13x = -91

x = -7.

Substitute this into equation 2:

4(-7) - y = -19

-y = -19 + 28

-y = 9

y = -9.

Just gonna attach a picture of the problem so it’s easier

Answers

Answer:

Step-by-step explanation:

Part A

The first thing you have to do is develop a formula for the line.

It goes through (-2,3)

It has a y intercept of (0,-1)

So far what you know is

y = mx - 1

x = - 2

y = 3

3 = m(-2) - 1                  Add 1 to both sides

3 + 1 = (-2)*m

4 = - 2*m                      Divide by - 2

4/-2 = m

m = - 2

The equation of the line is y = -2x - 1

Instead of y, we can use f(x)

f(x) = -2x - 1

Finally we can solve this part of the question.

f(1) = - 2(1) - 1

f(1) = -2 - 1

f(1) = - 3

Part B

f(x) = 5

y = 5

5 = -2x - 1           Add 1 to both sides

5+1 = - 2x           Divide by - 2

6 / -2 = -2x/-2

-3 = x

Use the Right Triangle Alt. Thm., Pythag. Thm. and/or Similar Triangles to solve.​

Answers

Answer:

Step-by-step explanation:

I honestly don’t know

Answers

Answer:

x=-3h

x=-12

Step-by-step explanation:

[tex]\frac{x}{h} +1=-2[/tex]

[tex]\frac{x}{h} =-3[/tex]

[tex]x=-3h[/tex]

[tex]x=-3(4)[/tex]

[tex]x=-12[/tex]

solve for value of x in simplest radical form

Answers

Answer:

3

Step-by-step explanation:

Solve the following.

Answers

Answer:

Step-by-step explanation:

The scale factor is 5.3 repeating. So I divided 24 by 5.33333333333333333 and got 4.5. I don't know if it's accurate since it's a reapeating decimal but it's close enough. Then I multiplied 2 by 5.3333333333333333333333 and got 10.6666667.

Find the area of the cuboid.

Answers

Answer:

32

Step-by-step explanation:

area=2(lb+bh+lh)

2(3×2+3×2+2×2)

2(6+6+4)

2(16)

=32

(I need these answered asap and with work and explanation included)

Answers

Answer:

blue marbles - 2/9. red marbles - 3/9 = 1/3 clear marbles - 4/9. Davis got a 2/9 chance and Tessa got a 2/8 or 1/4 chance. I don't know about the last question. it might be 5/9 but I don't know sorry.

Finding the Area of a Triangle
Calculate the area of the triangle:
A=

Answers

Answer:

27

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

What are the terms in this expression: x + 7 - 3x + 6y (Check all that apply)

A is x
B is -4
C is -3x
D is 6y
E is +7

Answers

The answer is d and e
6y and +7

Someone please answer this and not one of those bot links answer it someone an actual person please answer it I’ll give you brainliest…

Answers

Answer:

1) y = 13.5x + 12) y = 12x + 43) Sam won the race

Step-by-step explanation:

Part 1

Sam's car is 1 ft in front of the start line and its speed is 13.5 ft/s.

The distance after x seconds is:

y = 13.5x + 1Part 2

Alice's car the speed 12 ft/s and after 3 seconds is 40 ft in front of the start line.

The distance after x seconds is:

y = 12(x - 3) + 40 = 12x - 36 + 40 = 12x + 4Part 3

After 15 seconds the distance from the start line is:

Sam   ⇒ y = 13.5*15 + 1 = 203.5 ftAlice  ⇒ y = 12*15 + 4 = 184 ft

As we see Sam is further from the start line than Alice

Here you go. 29-28+28+11-11=?

Answers

Answer:

29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

29-28=1

1+28=29

29+11=40

40-11=29

Thank you for this challenge that was half the challenge of a challenge........

Better hope you stay up long enough to see the animatronics. :)

(789+890)=(2992) answer it and i give u a taco

Answers

Answer:

False

Step-by-step explanation:

789+890 = 1679

Answer:

789+890+1313=2992

Step-by-step explanation:

Evaluate the expression for x = 2 and y = 4.

Answers

Answer:

Not enough info

Step-by-step explanation:

Not enough info sry

The product of a binomial and a trinomial is x 3 3 x 2 âÂ’ x 2 x 2 6 x âÂ’ 2. Which expression is equivalent to this product after it has been fully simplified? x3 5x2 5x â€"" 2 x3 2x2 8x â€"" 2 x3 11x2 â€"" 2 x3 10x2 â€"" 2.

Answers

The product of given binomial and trinomial is given by below polynomial:

[tex]x^5 + 9x^4 + 15x^3 -10x^2 + 14x - 4[/tex]

Given polynomials:Trinomial : [tex]x^3+3x^2-x+2[/tex]Binomial: [tex]x^2+6x-2[/tex]

Explanation:

The expression formed by the sum of sub expressions which are product of constant integers with variables raised to some exponent is called polynomial.

Their product is given by:

[tex](x^3 + 3x^2 - x + 2) \times (x^2 + 6x -2)\\= x^5 + 6x^4 - 2x^3 + 3x^4 + 18x^3 - 6x^2 -x^3 -6x^2 + 2x +2x^2 + 12x - 4\\= x^5 + 9x^4 + 15x^3 -10x^2 + 14x - 4[/tex]

Thus the product of given binomial and trinomial is given by below polynomial:

[tex]x^5 + 9x^4 + 15x^3 -10x^2 + 14x - 4[/tex]

Learn more here:

https://brainly.com/question/1477426

PLEASE HELP!!!!!! This is very important to me PLEASE HELP ASAP and if you help me god bless you

Answers

Answer:

try the 3rd one

Step-by-step explanation:

if it's not right then i'm sorry

Answer:

Below!

Step-by-step explanation:

The slope is un-defined because the x axis on both points are the same. Therefore, the slope is un-defined.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

Choose the equations that are not linear equations.



X/2 -y*3 = 1
O - x-y= 2.
x2 + y=4
x= 5

Answers

Answer:

#2 and #4

Step-by-step explanation:

Anything with a variable squared is not linear

What is the length of EF in the right triangle below?

Answers

I think it would be A.

Answer:

A.24

Step-by-step explanation:

EF=√(25)²-(7)²

EF=√625-49

EF=√576=24

Is ∠ABC ≅ ∠ADC? Yes or no and why. PLEASE HELP ME? thanks. BRAINLIEST to CORRECT answers ONLY. PLEASE NO LINKS

Answers

yes the triangles are congruent by the HL Theorem

1/3(1/6 + 5/12) - 1/36

Answers

Answer:

1/6

Step-by-step explanation:

Apply the distributive property.

1/3 x 1/6 = 2/36

1/3 x 5/12 = 5/36

Add the products.

2/36 + 5/36 = 7/36

Subtract the result by the 1/36.

7/36 - 1/36 = 6/36

Simplify the fraction.

6/36 = 1/6

-hope it helps

1) The height, h, in feet of a ball above the ground is given by h = -16t2 + 64t+ 80, where t is the time in seconds. How long does it take the ball to hit the ground? es A) 3 seconds B) 4 seconds 95 seconds D) 6 seconds​

Answers

Answer:

C) 5 seconds

Step-by-step explanation:

[tex]h = - 16t {}^{2} + 64t + 80[/tex]

When the ball hits the ground, the height is 0.

[tex]0 = - 16t {}^{2} + 64t + 80[/tex]

Factor out the greatest common factor: 16

[tex]0 = - 16(t {}^{2} - 4t - 5)[/tex]

Find numbers whose sum is -5 and product is - 4.

Those numbers are - 5 and 1: - 5 × 1 = - 5, - 5 + 1 = - 4

[tex]0 = - 16(t - 5)(t + 1)[/tex]

[tex]t - 5 = 0[/tex]

Or

[tex]t + 1 = 0[/tex]

So,

[tex]t = 5[/tex]

Or

[tex]t = - 1[/tex]

Since time cannot be a negative value the correct answer is 5 seconds.

twice a number x, minus 16​

Answers

Answer:

[tex]\huge\boxed{\sf 2x - 16}[/tex]

Step-by-step explanation:

twice a number x = 2x

minus means to subtract (-)

So, twice a number minus 16 is:

= 2x - 16

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Hey there!

Our unknown number is x.

First, "twice x" means we multiply x by 2:

2x

Then, we subtract 16:

2x-16

Therefore, the expression is: 2x-16

Hope this helps. Use the comment section to clarify your doubts.

Answered by

~A teen who helps others with a smile on her face

Good luck with your studies. :-)

work out the perimeter of this semicircle the radius is 11cm take π to be 3.142 and write down all of the digits given by your calculator

Answers

The answer is 34.54 cm

What is the area and circumference of a circle?

The circumference (or) perimeter of a circle = 2πr units. The area of a circle = πr2 square units. Where r is the radius of the circle. The circumference of the circle or the perimeter of the circle is the measurement of the boundary of the circle. Whereas the area of the circle defines the region occupied by the circle.

Given here: Radius=11cm

Thus circumference of the semi-circle is = πr

                                                                      =3.14×11

                                                                       =34.54 cm

Hence, The answer is 34.54 cm

Learn more about circumference of a circle here:

https://brainly.com/question/14200825

#SPJ1

One smartphone plan costs $52 per month for talk and messaging and $8 per gigabyte of data used each month. A second smartphone plan costs $82 per month for talk and messaging and $3 per gigabyte of data used each month. Let c represent the total cost in dollars and d represent the amount of data used in gigabytes.

The system of equations
c=52+8d
c−3d=82

can be used to represent this situation.
How many gigabytes would have to be used for the plans to cost the same? What would that cost be?

Answers

Answer:

Both plans would cost $100 if 6 gigabytes of data are used.

Explanation:

From the question, the system of equation are correctly represented by using small letter c to represent the total cost in dollars for both equations as already assumed in the question as follows:

c = 52 + 8d ........................... (1)

c = 82 + 3d ........................... (2)

Since c is common to both, equations (1) and (2) can therefore be equated and d solved for as follows:

52 + 8d = 82 + 3d

8d - 3d = 82 - 52

5d = 30

d = 30 / 5

d = 6

Substituting d = 6 into equation (1), we have:

c = 52 + (8 * 6)

c = 52 + 48

c = 100

Since d = 6 and c = 100, it therefore implies that both plans would cost $100 if 6 gigabytes of data are used.

anybody help please hm​

Answers

Answer:

1

Step-by-step explanation:

if you use a calculator, it will come up as 1. I don't know why, but it does.

Hope this helps!

True or false 6 to the 3 power = 216

Answers

Answer:

True

Step-by-step explanation:

6^3, or 6x6x6, is equal to 216.

---

hope it helps

Answer:

true

Step-by-step explanation:

The year the Greek city of Helike disappeared is -1/5 times the year the US Civil War ended. Let w represent the year the Civil War ended. Write an expression in terms of w to represent the year of Helike’s disappearance.

Answers

Variables:

w= The\ year\ Civil\ War\ ended

The year the Greek city of Helike disappeared is -1/5(w)

sry if im wrong i hope this helps tho :)

Answer:

Hope this helps

Step-by-step explanation:

-1/5x=w

w=1865

so -1/5x=1865

x=-9325

in a class of 33 student 18 play football 1"basketball and 7 play both games how many students play non of the games​

Answers

Answer:

20

Step-by-step explanation:

I'm pretty sure its 20 but I could be wrong but 20 is my best guess.

Answer:

16 of the 33 plays none.

Step-by-step explanation:

From the list, we get that 18 students play football, 1 basketball, and 7 both.

What we need to do here is add up 18 and 1

then we subtract 19 by 7 to cancel out the people who play both

and then subtract the total number of 33 by 17,

which gives you 16.

26=7(g−9)+1226, equals, 7, left parenthesis, g, minus, 9, right parenthesis, plus, 12

Answers

26=7(g-9) + 1226

To find g, we expand the brackets first(multiplying every term in the bracket by the term outside it):

26=7g-63+1226

Add the terms on the right hand side:

26=7g+1163

Collect alike terms to left hand side:

26-1163=7g
-1137=7g

Divide equation by 7 to get g on its own:

g= -162.428 (3dp)

Hope this helps!


A map of a nature park has a scale of 2 inches to 1.5 miles. There are two trails that are 8 inches apart on the map. What is the actual distance between the two trails?

Answers

Answer:

6 miles

Step-by-step explanation:

2 inches : 1.5 miles

8 inches : 4(2 inches)

8 inches : 4(1.5 miles)

8 inches : 6 miles

6 miles away

-Chetan K

The actual distance between the two trails is 6 miles.

Given the scale of the map is 2 inches to 1.5 miles, we can set up a proportion to find the actual distance between the two trails.

Let x represent the actual distance between the trails in miles. The proportion would be:

(2 inches / 1.5 miles) = (8 inches / x miles)

Now, solving for x:

2/1.5 = 8/x

Cross-multiplying:

2x = 1.5 × 8

2x = 12

Divide by 2:

x = 6

So, the actual distance between the two trails is 6 miles.

Learn more about proportion here:

https://brainly.com/question/1496357

#SPJ3

Other Questions
There are 40 pupils in a class. 75% of them are present. How may are present? How many are absent?with solution please :D I need help with this answer PLEASE Im stuck Pls look at photos Ill give 30 points Which of these would describe a dish that contains bits of chocolate and nuts you can see?homogeneous mixturecompoundheterogeneous mixturenone of the above 3.How do paragraphs 4and 5 contribute to the development of ideas in the text?AIt describes the qualities a person needs to have to build their self-image.BIt suggests that readers take time to evaluate their self-image.CIt provides the negative effects of a changing self-image.DIt shows how people are unaware of their self-image. What is the percent, by mass, of water in MgSO4.2H20 A speed skater completes a 500-meter race in 40 seconds. A cheetah runs 260 meters in 10 seconds. How do their speeds compare?Find the number of meters a speed skater and a cheetah travel in 1 second.A speed skater travels (blank) meters per second.A cheetah travels (blank) meters per second. When practicing rational emotive behavior therapy, a therapist will typically. empat angka setelah angka tiga What is the distance from point D to point C?A.1 unit B.2 unitsC.3 unitsD.4 units The British East India Company first gained control over India through the policy of . India became a direct colony of Britain after the suppression of the in 1857. Many people in India began to resent the British and formed nationalist groups to gain . BRAINLIEST + 45 POINTS FOR CORRECT ANSWERWhich of the following is true about most state constitutions?1. Most state constitutions do not include a system of checks and balances.2. Most state constitutions are longer than the U.S. Constitution.3. Citizens created state constitutions to better explain the meaning of the U.S. Constitution.4. Citizens violate the laws of the U.S. Constitution more than the laws of most state constitutions. Samuel has 52 marbles in a bag. Fourteen are red, 13 are green and 25 are blue. If a marble is chosen at random, what is the probability that it is green? i putted it on english because i didnt ssee scienceChanges in the amount of _______________ caused big changes in the prairie balance of nature.chemicalscarbon dioxiderainfall In a bag of candies, the total number of yellow candies and blue candies is 75. The number of yellow candies is15 more than twice the number of blue candies. How many yellow candies are in the bag?Help!! Last month you had a holiday overseas where you stayed with your friend. He have just sent you some photos of your holiday.Write a letter to your friend. In your letter:thank them for the photos and for the holidayexplain why you didnt write earlierinvite them to come and stay with you Help help help help help math A movie theater charges $9.75 per ticket. Monday through Thursday they make on average $2720.25 daily. How manycustomers do they have on an average Tuesday?a. 279 customersc. 70 customersb. 272 customersD. 26552 customers Which sentence in this body paragraph is most clearly the concluding sentence? (1) The first detail that predicts the main character's death in To Build a Fire' is his ego. (2) He is simply too full of himself to survive in the Alaskan wilderness. (3) For example, early in the story, he makes fun of the old man who warns him not to be outside when the temperature goes below a certain level. The main character ignores the old man and even thinks he's weak. (4) This shows that the main character has too little respect for his situation, which is one reason he is doomed.A. Sentence 3B. Sentence 4C. Sentence 1D. Sentence 2 Help please due today!