Use the points (2, 2485.6) and (6, 1172.5) to write an equation of the line of fit in slope-intercept form. Let x be the years since 2010 and let y be the number of CDs in millions sold.

Answers

Answer 1

Answer:

y = -328.275x + 1829.05

Step-by-step explanation:

In this case, we need to write an equation of this form:

y = ax + b  (1)      a: slope    b: intercept

In order to calculate the slope, we need to use the following expression:

a = y₂ - y₁ / x₂ - x₁     (2)

So, we have two points here, so, from these points we can identify each of the elements so we can determine the slope.

Point 1: (2, 2485.6)

Point 2: (6, 1172.5)

The slope of this equation will be:

a = 1172.5 - 2485.6 / 6 - 2

a = -328.275

Now that we have the slope, to get the intercept "b", we just use any of the given points, and replace in the general equation (1) to solve for b:

2485.6 = -328.275(2) + b

b = 2485.6 - 656.55

b = 1829.05

With the value of a and b, we can write the general equation of the line for this:

y = -328.275x + 1829.05

Hope this helps

Answer 2

Answer:

the person above me is wrong!

(answer is in the picture)

Use The Points (2, 2485.6) And (6, 1172.5) To Write An Equation Of The Line Of Fit In Slope-intercept
Use The Points (2, 2485.6) And (6, 1172.5) To Write An Equation Of The Line Of Fit In Slope-intercept

Related Questions

Royce has 4 green pens, 2 blue pens and 6 red pens in a box. He will randomly choose 1 pen from the box. What is the probability Royce will select a blue pen?

Answers

Answer:

2/12

Step-by-step explanation:

4 + 2 = 6 + 6 = 12

there is 2 blue pens

so 2 out of 12

CAN I HAVE BRAINLEIST PLEASE?????

Answer:

1/6

Step-by-step explanation:

There are 12 pens in the box and 2 blue pens

Probability to selecting a blue pen is 2/12 = 1/6

find the equation of the line shown:

Answers

Answer:

Y= -1/2x -1

Step-by-step explanation:

b. In a hockey tournament, Jeremy's team scored 7 goals and had
8 goals scored against it. How many goals did Jeremy's team
lose by?

Answers

Answer:

Jeremy's team lost by 1 to get a tied game but his team lost by 2 for the win

50,60,72 find the 8th term airthmetic and geometric sequence

Answers

Answer:

8th term is 179.15904

Step-by-step explanation:

The sequence is geometric with a common ration = 6/5

r = 60/50 = 72/60 = 6/5

Use the formula

[tex]a_{n} = ar^{n - 1}[/tex]

In your case a = 50, r = 6/5 and n = 8

[tex]a_{8} = 50(6/5)^{8 - 1} \\ = 50(6/5)^{7} \\ = 50(279936/78125)\\ = 179.15904[/tex]

There are 7 more girls than boys in an 8th grade class. There are a total of 53 students in this 8th grade class. How many girls are in this 8th grade class
A.)17
B.)21
C.)27
D.)30

Answers

Answer:

17

Step-by-step explanation:

I hope it correctly does come true as I am in the process

Find the slope of the line that passes through (3, 8) and (5, 9).

Answers

Answer:

1/2

Step-by-step explanation:

y2-y1 divided by x2-x1 is (9-8)/(5-3)= 1/2

Answer:

slope= 1/2

Step-by-step explanation:

can somebody help? marking brainliest:)

Answers

Answer:

23/16

Step-by-step explanation:

23/16+1/16=24/16=3/2

Sales associates at an electronics store earn different commission
percentages based on the items they sell. The table shows the total
sales and commission earnings for four sales associates at the
electronics store last month.


GIFTING EXTRA POINTS

Answers

Answer:

how am i gonna solve the equation if i cant see the actual chart?

Step-by-step explanation:

Can you guys please help me with this problem

Answers

Step-by-step explanation:

a+10=44°[being interior angle of triangle]

a=44-10

a=34

now

2a

2×34

68

igussss

The monthly membership costs include a $10 basic fee plus $2 for each DVD she rents. Which equation describes v, the number of DVDs Ingrid can rent, based on T, the amount she spends for membership costs per month?
A. v= t/2 - 5
B. v= t/2 - 10
C. T= v/2 - 10
D. T= v/2 - 5

Answers

Answer:

A) v = T/2 - 5

Step-by-step explanation:

T = 10+2v

2v = T-10

v = (T-10)/2 = T/2-5

The equation that describes no. of DVDs that Ingrid can rent is A.              v = (T/2) - 5.

What is an equation?

An equation states that terms on both sides of the equality sign are equal.

The monthly membership costs 10 dollars, and The rent for each DVD costs 2 dollars.

No. of DVDs that can be rented is denoted by v based on T.

The equation that describes the total cost of renting DVDs is,

T = 2v + 10.

∴ The equation that describes no. of DVDs that can be rented is

2v = T  - 10.

v = (T/2) - 5.

learn more about equations here :

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Write three hundred eighty-seven thousandths as a decimal number.

Answers

Answer:

0.387

Step-by-step explanation:

Answer:

The answer would be 0.387

Lisa has been dancing for 3 more years than danika Danika has been dancing for 6 years

Answers

Answer:

lisa has been dancing for 9 yrs

Step-by-step explanation:

6+3=9

and ive been dancing for longer than both of them lol hope this helped :)

Answer:

9 Years

Step-by-step explanation:

Sara’s ice cream looks pretty normal. It is shaped like a cone topped with a half-sphere. The cone has a height of 9 in and a radius of 4 in.
What is the approximate volume of the whole shape? Round your answer to the nearest tenth. Use 3.14 to approximate pi. (Show your work.)

Answers

Answer: 284.7

Step-by-step explanation:

radius of cone and hemisphere are the same

volume of half sphere=(1/2)*(4/3)*[tex]\pi r^{3}[/tex]

                                    =(1/2)*(4/3)*3.14*[tex]4^{3}[/tex]                       (4*4*4=64)

                                    =133.97333

                                    =133.97

volume of cone= (1/3)[tex]\pi r^{2}[/tex]h

                         =(1/3)*3.14*[tex]4^{2}[/tex]*9                                      (4*4=16)

                         =150.72

total volume=133.97+150.72

                    =284.69

                    =284.7

Simplify each expression by combining like terms

a). x + 2x
b). 3m + 4n - 6n

Answers

Answer:

1) 3x

2) 3m - 2n

Answer:

below

Step-by-step explanation:

3x, 3 m − 2 n

Work out
169% of 705.8kg
Give your answer rounded to 2 DP.

Answers

Step 1: 705.8x(169/100)=1192.802
Step 2: round to 2 DP so it will be 1192.80
THE FINAL ANSWER IS 1192.80kg
^^^thats the correct answer just second person verification!

What is the volume of a cone with a diameter of 8 in and a height of 5 in?

Answers

Answer:

V=80π/3 or V=83.78

Step-by-step explanation:

The volume is

V=πr^2h/3

r=4 (because the radius is half the diameter)

h=5

V=π16*5/3

V=80π/3

Answer:

83.73

Step-by-step explanation:

volume = (1/3) · π · r2 · h

volume = (1/3) x 3.14 x 4^2 x 5

volume = (1/3) x 3.14 x 16 x 5

3.14 x 16 x 5 = 251.2

1/3 x 251.2

83.73

Each quadrilateral below is a parallelogram. Find the missing measures

Answers

Answer:

GH = 13

FG = 20

<F = 78

<G = 102

<H = 78

Step-by-step explanation:

Since there are 5 measures that are missing, we will do each one in a different part.

1.  The side length of GH is 13. Since this is a parallelogram, the opposite side of your original side is congruent, meaning that its the same. So, knowing that the opposite of FI is GH, we can say that GH is 13 units long.

2. We can use the same logic for number 2, when finding FG. Since HI is 20. we can say that since the corresponding side is also congruent to our original length, they are equivalent. Basically meaning they are the same

3. a. For finding F, we will need to use a different method. Since a parallelogram is somewhat like a transversal we can use that to our advantage. (If you don't know what a transversal it, look at part B instead) Since we know that angle I is 102, and both line FG and HI are parallel, the angles are basically adjacent, when switched. So we should see that it would have to be 78. Meaning that F is 78.

3. b. If you don't understand what a transversal is, we can still figure it out. Knowing that the figure is a closed shape, along with knowing that its a parallelogram, we can say that if we were to sum the angles F and I, we would get 180. 180-102=78, so F is 78.

4. Since we can use a transversal or just pure logic to say that angle G and I are equivalent, meaning that G is 102.

5. This one is exceptionally simple, just for the fact that we have answered the previous questions. We have H left, which is not only equivalent to F, but using 3. b. we can say that its would only make sense that H is 78 as well, to sum up that half to 180.

ea income of a person is Rs
90000. It is
It is increased by 15.1., what
after one year
- ?
is the income of person​

Answers

Answer:

$13500. 00 is the 15% increase yearly + $90000.00 = $103,500.00 new yearly salary

determine the degree measure of an arc whose central angle measures 4pi/15 radians

Answers

Answer:

[tex]\boxed{\textsf{ The degree measure is \textbf{ 48}$^{\textbf{o}}$.}}[/tex]

Step-by-step explanation:

Here we are given radian measure which is 4π/15 radians . We know the relationship between Radian and Degree measure as ,

[tex]\qquad\boxed{\boxed{ \sf\pi rad = 180^o }}[/tex]

Put on the respective values ,

=> π rad = 180°

=> 1 rad = 180°/ π

=> 4π/15 rad = 180°/π × 4π/15

=> 4π/15 rad = 48 °

Which is a better deal per
ounce--a 16-oz bag of
M&Ms that costs $3.20, or a
2-oz bag of M&Ms that costs
$0.50?

Answers

Answer:

$0.25

Step-by-step explanation:

2-0z bag of M&Ms costing $0.50 is better, because

0.50/2 = $0.25

I need help with part a to this question

Answers

Answer:

x : __ - 2 __ -1 ___0 ___ 1 ___ 2 ___ 3

y: ___ 5___ 2___ 1 ___ 2____5 ___ - 3

Step-by-step explanation:

Table of values for part A

Equation : y = x² + 1

x : __ - 2 __ -1 ___0 ___ 1 ___ 2 ___ 3

y: ____ ___ ___ 1 __ ___5 __ - 3

Substitute the value of x to obtain the missing values _

x = - 2

y = (-2)² + 1 = 4 + 1 = 5

x = - 1

y = (-1)² + 1 = 1 + 1 = 2

x = 1

y = (1)² + 1 = 1 + 1 = 2

I NEED HELP ASAP :))))​

Answers

Answer:

its 8/3 and 2

Step-by-step explanation:

its that answer because on the chart its f(x and g(x and there both on there

Answer:

It should be C

Step-by-step explanation:

I hope this helps!

How can canyons change because of erosion ? I will mark brainliest

Answers

Answer:

Ice forces the cracks to become larger and larger, eroding bits of stone in the process. During brief, heavy rains, water rushes down the cracks, eroding even more rocks and stone. As more rocks crumble and fall, the canyon grows wider at the top than at the bottom.

Samantha wants to treat her friends to a movie. Tickets cost $6 each and popcorn and drinks will cost $30. She can spend no more than $150 so how many friends can she take?



a) Write an inequality to represent the situation.



b) Solve the inequality to find the maximum number of friends she can take?

Answers

6x+30(less than or equal to sign) 150
The max amount of friends she can bring is 20

6x+30(less than or equal to sign) 150

The max amount of friends she can bring is 20 that is the answer to the question

answer pls. question in photo

Answers

Answer:

-The answer is =19400

Step-by-step explanation:

i hope this helps

7 yd
Determine the Volume. Write an exact answer.
A)
B)
C)
6861 cubic yards
228.61 cubic yards
718.31 cubic yards
18
27

Answers

Answer:

C) 718.3 cubic yards

Step-by-step explanation:

I hope this helps :)

Answer:

228.6π cubic yards

Step-by-step explanation:

Volume of a cone formula: V = 1/3hπr²

h = 14

r = 7

Just plug in the values.

1/3(14)π(7)² = 228.6π

A company rents out 14 food booths and 20 game booths at the county fair. The fee for a food booth is $125 plus $8 per day. The fee for a game booth is $50 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.

Answers

14(125+8d)+20(50+7d)=total

Find the slope of the line through the pair of points.

L(–9, 6), M(–1, –9)

[tex]\frac{3}{10}[/tex]

-[tex]\frac{15}{8}[/tex]

[tex]\frac{15}{8}[/tex]

-[tex]\frac{8}{15}[/tex]

Answers

15/8
Bc I just did this

Answer:

Hi!

Step-by-step explanation:

Slope is -15/8

Final answer is -15/8

I hope this helps you!

Have  a nice day! :)

-

:D

Step-by-step explanation:

Slope is rise over run. This means your y is over your x. Start with subtracting your y values. It doesn't matter which way, just make sure you do the same with the x values. For this, I'll do it 6 - -9. The two negatives cancel out and make a positive, so your y value is 15. Now, do the same to the x values. -9 - -1 is -8. You're left with 15/-8. Since this can't be simplified, this is your final answer. Hope I helped!

The arrow of this spinner was spun 60 times. On 45 out of 60 times, the arrow landed on a section with a multiple of 4. What was the experimental probability of the arrow landing on a section labeled with a multiple of 4?

Experimental or Theoretical?

Answers

Answer:

Step-by-step explanation:

The experimental value of probability of the arrow landing on a section labeled with a multiple of 4 is 3/4 or 0.75

What is Probability?

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

The probability that the arrow lands on a section labeled with a multiple of 4 is an experimental probability since it is based on the results of an actual experiment or trial.

The experimental probability is given by:

Experimental probability = Number of times the event occurred / Total number of trials

In this case, the event is the arrow landing on a section labeled with a multiple of 4, and the total number of trials is 60.

From the given information, we know that the arrow landed on a section labeled with a multiple of 4 on 45 out of 60 times.

So the experimental probability is:

Experimental probability = 45/60

Simplifying:

Experimental probability = 3/4

Hence , the experimental probability of the arrow landing a multiple of 4 is 3/4 or 0.75

To learn more about probability click :

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You measure 3 inches between your house and the movie theater. How many miles is in from your house to the movie theater?

Answers

Answer:

4.734 * 10^-5 miles

Step-by-step explanation:

Given that:

Distance between House to movie theater = 3 inches

Expressing the distance in miles :

Converting inch to miles

1 inch = 1.578 * 10^-5 miles

3 inches = (3 * 1.578*10^-5)

3 inches = 4.734 * 10^-5 miles

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