Find the value of the sum ∑j=131(6j2−7j+4)

j
=
1
31
(
6
j
2

7
j
+
4
)
. Use a summation formula, if possible.

Answers

Answer 1
I don’t know but I really need answers
Answer 2
I think that’s sum numbers like 1+3

Related Questions

The school band has a goal of raising $800 for some new uniforms. If they have raised $512 so far, what percent of their goal have they raised?

Answers

Answer: 64%

Step-by-step explanation:

The band needs $800 for new uniforms and of that, they only raised $512.

Set up a proportion [tex]\frac{part}{total} = \frac{percentage}{100}[/tex]and plug everything you know in.

[tex]\frac{512}{800}[/tex] = [tex]\frac{x}{100}[/tex]

Solve for x by cross multiplying and dividing.

512 × 100 = 51200

51200 ÷ 800 = 64

x = 64

The school band has raised 64% of their goal already.

Answer:

The Answer would be 64%

Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length is unknown.
Each section will be a different color, so they need to know the area of each section.
so , i said 5/10x area = length * width A=10*x a= 10x
then i said you should divide , next i said 10x/5 10x in five sections is 2 in each q1 said area 10*x but x=2 so 10*2=20 is this correct?

Answers

I believe so because if you are finding a area you do length x width

Nine cyclists were each asked the distance in miles they biked last week.
Their responses are given below.
Complete the grouped frequency distribution for the data.
In the distribution, the frequency of a class is the number of distances in that class.
(Note that we are using a class width of 6.)

Answers

The frequency for 2 to 7 is 3

The frequency for 8 to 13 is 4

The frequency for 14 to 19 is 2

The grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.

Given that, nine cyclists were each asked the distance in miles they biked last week. The distance travelled by 9 cyclists is 16, 8, 2, 6, 8, 11, 9, 15 and 7.

We need to complete the grouped frequency distribution for the data.

What is the grouped frequency distribution?

In this type, the data is arranged and separated into groups called class intervals. The frequency of data belonging to each class interval is noted in a frequency distribution table. The grouped frequency table shows the distribution of frequencies in class intervals.

Now, the frequency distribution for the given intervals is as follows:

That is, for intervals 2 to 7 the frequency is 3.

For intervals 8 to 13 the frequency is 4.

For intervals 14 to 19 the frequency is 2.

Therefore, the grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.

To learn more about the grouped frequency distribution visit:

https://brainly.com/question/4679134.

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jacob collects hats.he has 6 hats already and collects 2 more hats each week. how many weeks does it take for Jacob to collect 32 hats?

Answers

It would take thirteen weeks to collect 32 hats.
it takes 13 weeks for jacob to collect 32 hats

What are the numbers shown on the number line?



{-5, 2.5, 6}

{-5, 4, 5}

{-4, 2, 6}

{-5, 0, 6}

Answers

Answer:

{-5, 2.5, 6}

Step-by-step explanation:

-5, 2.5, 6 would be correct

I shall assist you with a question if you help me.

Answers

[tex]2x^2-3x-1 -(3x^2 +5x)\\\\=2x^2 -3x -1 -3x^2-5x\\\\=-x^2-8x-1[/tex]

Answer: B (-x^2-8x-1)

You don’t need to help me, by the way. :)

Hope this helped!!

Pluto is no longer considered a planet because of its flattened shape?

true or false

Answers

false it’s not no longer considered a planet because of its flattened it because it’s size

Someone please help. I will give brainliest.

Answers

2. -56

1. 35x

3. 60mph

5. 10.33

4. 13.05$

6.5

7. 34

8.14.09

9.1200

10.53

12. 67.0

13. 6.21

14. 32

Hope it helps you!!! :D

Answer:

Step-by-step explanation:

Solve.

−5.6x=−4

What is the solution to the equation?

Enter your answer as a simplified fraction in the box.

Answers

Answer: 0.714285

Step-by-step explanation:

The solution of the equation (-5.6 = -4) is (x = 5/7) and this can be determined by using the arithmetic operations.

Given :

-5.6x = -4

The following steps can be used in order to determine the solution to the equation (-5.6x = -4):

Step 1 - The arithmetic operations can be used in order to determine the solution to the given equation.

Step 2 - Write the given equation.

-5.6x = -4

Step 3 - Add 4 on both sides in the above equation.

-5.6x + 4 = -4 + 4

-5.6x + 4 = 0

Step 4 - Add 5.6x on both sides in the above expression.

-5.6x + 4 + 5.6x = 5.6x

4 = 5.6x

Step 5 - Divide 4 by 5.6 in the above expression.

[tex]x = \dfrac{4}{5.6}[/tex]

Step 6 - Simplify the above expression.

[tex]x = \dfrac{5}{7}[/tex]

For more information, refer to the link given below:

https://brainly.com/question/2096984

Which of the following is NOT between -7 and -4 on the number line?

-7.2

-4.8

-6

-5.01

Answers

Hi,

-7.2 is NOT between -7 and -4 on the number line.

(•‿•)

-7.2 would be the answer

When using re-grouping to solve 21 x 43, what are the four products that would be calculated and then added?
800 + 3
80 + 40 + 60 + 3
800 + 40 + 60 + 3
800 + 40 + 6 + 3

Answers

Answer:

c

Step-by-step explanation:

21×43

=(20+1)×(40+3)

=800+40+60+3

The third one because 21 times 43 is 903 and 800 + 40 + 60 + 3 = 903

The model represents an equation. What value of x makes the equation true?

Answers

Answer:

D

Step-by-step explanation:

Answer:

4/7

Step-by-step explanation:

Please help! NO LINKS! (Scientific Notation)

** Only if you know the answer

Answers

It is 8 times 10 to the 4th power.

8*10 to the 4th power

1. In what book was “Gryffindor Versus Ravenclaw” a chapter?

2. What was the name of Aragog’s wife?

3. What kind of wood was Lily Potter’s wand made of?

4. What Quidditch team did Oliver Wood play for after graduating?

5. What were the titles of Dolores Umbridge’s two positions at the Ministry of Magic?


6. Who was the Ravenclaw captain when Gryffindor beat them in the Quidditch Cup?

7. Name all the people and their houses who were sorted before Hermione Granger was.

8. Who were the two Gryffindor Beaters when Harry Potter was Quidditch captain?


9. What is the password to get from Hogwarts to Hogsmeade?

10. Who was the referee at the 1994 Quidditch World Cup?

Answers

Answer:

1. Chapter 13 in, "Harry Potter and the Prisoner of Azkaban

2. Mosag

3. Willow

4. Puddlemere United

5.  ( This is all of her positions that I found) Head of the Improper Use of Magic Office (formerly)

Senior Undersecretary to the Minister of Magic (–1998)

Defence Against the Dark Arts Professor at Hogwarts School of Witchcraft and Wizardry (1995–1996)

Headmistress of Hogwarts (April–June 1996)

High Inquisitor at Hogwarts (1995–1996)

Head of the Muggle-Born Registration Commission (1997–1998)

6. Roger Davies

7. (This one i'm not sure on but i'll keep searching)

8.  I believe that is was Fred and George Weasley

9. Dissendium

10. referee Hassan Mostafa

Sorry I didn't get to all of them, I am still getting through a few of the books but I hope this atleast helped a little :)

Step-by-step explanation:

1) Harry Potter & the prisoner of Azkaban.
2) Mosag.
3) Willow.
4)Puddlemere United’s reserve team.
5)Senior undersecretary to the minster of magic & head of the improper use of magic office.
6)Roger Davies.
7)Hermione was sorted first.
8)Fred & George Weasley.
9)Dissendium.
10) Hassan Mostafa.
:)

The total change in the outdoor temperature over 6 hours was -21°F
What was the mean change in temperature per hour?

₋₋₋₋₋₋₋₋ °F per hour

Answers

Answer:

-3.5

Step-by-step explanation:

As there was a total change of -21, that would be the first part of your equation:

-21

As 6 hours had passed and you are trying to find the mean, your equation would now be:

-21 ÷ 6 = ?

Now you can solve the equation, and the answer is -3.5°F per hour.

The mean change in temperature per hour is -3.5 °F.

what is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

The total change in the outdoor temperature over 6 hours was -21°F

So, in one hour the mean change in temperature

= -21/6

= -3.5 °F

Hence, the mean change in temperature per hour is -3.5 °F.

Learn more about unitary method here:

https://brainly.com/question/22056199

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Sabantolo used the rule "Add 8" to make a pattern. He started with 16 and wrote the next 5 numbers in his pattern. His pattern is below.

16, 24, 30, 38, 46, 54

Is Sabantolo's pattern correct?

A.
Yes. Sabantolo's pattern is correct.

B.
No. The pattern should be 16, 24, 32, 40, 48, 56.

C.
No. The pattern should be 16, 22, 30, 38, 46, 54.

D.
No. The pattern should be 16, 24, 30, 36, 44, 52.

Answers

Answer:

Answer is B. Hope this helped :)

Step-by-step explanation:

Answer:

the answer is B!

Irma works for a service that delivers groceries and pet supplies. She earns a base monthly salary of $1,900. In addition, she gets a commission of 1.8% of the cost of each grocery order, plus a fee of $11 for each delivery of pet supplies.

Part A

How is calculating Irma’s total annual earnings different from calculating earnings based on salary and commission?

Answers

irma’s annual income has the delivery fees already taken out. earnings based on salary and commission is higher becuase fees have not been taken out

Answer:

Irma also gets $11 for each delivery.

Step-by-step explanation:

Write an expression to represent the perimeter of the figure below.

Answers

Step-by-step explanation:

A perimeter is when you add up all of the sides

Here would be our equation

[tex]2(x+4)+2(2x-8)[/tex]

Answer: The expression for this would be 2(x+4) + 2(2x-8)

Step-by-step explanation:

This is because when we calculate perimeter, we add up all the sides. So, instead of doing (x+4)+(x+4), we can just do 2(x+4) and add up all sides. So, here’s the answer in simplest form!

6x - 8. Hope this helped!

..........................................................

Answers

Answer:

6/10

Step-by-step explanation:

60% of 100 is equal to 6/10

HELP PLZ BEFORE I FAIL!

Answers

I think the answer is -66

Answer: The clock hour hand moves 66 degrees in 2 1/5 hours.

Step-by-step explanation: (30/5)+(30x2)=X

I need this by today

Answers

Answer:

x<=119

Step-by-step explanation:

If it's no greater that the mean is 120 seconds, then the sum of the seconds should be 600. 600-118-129-120-114=119

So x should be less or equal to 119.

Answer is 5:)7yd written by gorgeous wxplaing(

Jessica purchased a book that was on sale for 12%. The sales tax is 3% key y represent original price of the book write an expression that can be used to determine the final cost of the book.


How do I do this, I don’t need a answer just how to do I it lol

Answers

Answer:

if it's 12% then: she's actually paid 88% with a tax of 3%.

Step-by-step explanation:

I did it

You answer is 36% because you need to multiply your two number

what was the first thing that was mad in the history

Answers

The first thing ever made in the history of men (probably in the 4th century) was the invention of a wheel.

Create a proportion from the given set of numbers:

Example: 1, 6, 2, 3
Proportion is 1:2=3:6

25) 3, 6, 7, 14
Proportion is _________________

26) 2, 6, 5, 15
Proportion is _________________

27) 7, 2, 14, 4
Proportion is _________________

28) 2, 2, 1, 4
Proportion is _________________

29) 10, 5, 8, 4
Proportion is _________________

30) 3, 12, 8, 2
Proportion is _________________

Answers

If you do 30 > then it be 320

Answer:

so from the example heres what i think is correct  25) proportion is 3:7= 14:6      26) 2:5=15:2     27) 7:14=4:2      28) 2:1=4:2   29) 10:8=4:5       30) 3:8= 2:12

Step-by-step explanation:

1. ESTIMATE THE NUMBER OF GALLONS REQUIRED TO PRODUCE 22 T SHIRTS. IS YOUR ESTIMATE AN OVERESTIMATE OR UNDERESTIMATE? EXPLAIN.
2. HOW MANY GALLONS OF WATER ARE REQUIRED TO PRODUCE 15 POUNDS OF CHOCOLATE? WRITE AND SOLVE AN EQUATION. LET 'g' BE THE NUMBER OF GALLONS.
(hidden water cost/ 1 pound of chocolate = 3,170 gal - 1 ream of paper = 1,321 gal -1 gallon of milk = 880 gal - 1 cotton t-shirt = 713 gal - 1 hamburger = 660 gal)
3. Extension : The owner of a company has a goal to reduce the company's water footprint by 100,000 gallons in one year. He estimates that if the company reduces its yearly need for paper by 80 reams, he will meet his goal. Could the owner have estimated correctly? Justify your answer.

Answers

It’s hold 3,00 gallons

Click to see the picture! NO LINKS

Answers

Want to make Mac and cheese

Boil the pasta, drain.
Make the cheese sauce by combining a fat (butter), and starch (flour), then whisking in the milk products.
Cook the sauce until it’s nice and thick.
Add in shredded cheeses, stir well.
Combine cheese sauce with cooked pasta.
Transfer half of the mac and cheese to a baking dish, sprinkle with more shredded cheese.
Top with the rest of the mac and cheese, top with more shredded cheese.
Bake and prepare to thoroughly enjoy

can someone help me wit this?

Answers

Answer for number 1 is: 32/21 or 1.5 as a decimal
Answer for number 2 is: -1
Answer for number 3 is: -35/6 or in decimal form, -5.83

Please help me I will give brainliest!

Answers

Answer:

D. 2 3/4 + (-3 1/4) = -1 2/4

Step-by-step explanation:

Its like addition, but it is actually subtraction.

like this: 2 3/4 - 3 1/4 = -1 2/4

Hope this helps!

It you like it, plz mark me as brainiest!

Answer:

The answer is- D

Step-by-step explanation:

I took the test and got it right!

Hope this helps you

URGENT! WILL GIVE BRAINLY FOR CORRECT ANSWER
Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is PPP and scale factor is 222.

Answers

Answer:

sorry if im wrong i think wrong numbers. plz check

Step-by-step explanation:

The center of dilation of the question is (-4,-3) .

let say that

x0=-4

y0=-3

Label the image A'B'C'

The new coordinate would be

A(-4,-1)

x=4

y=-1

x'=x0+ 2(x - x0)

x'= -4+ 2(-4 +4)

x'=-4

y'=y0+ 2(y - y0)

y'= -3+ 2(-1 +3)

y'=-3 +4= 1

______________________________

B(-4,-3)

x=-4

y=-3

x'=x0+ 2(x - x0)

x'= -4+ 2(-4 +4)

x'=-4

y'=y0+ 2(y - y0)

y'= -3+ 2(-3 +3)

y'=-3

______________________________

C(-1,-3)

x=-1

y=-3

x'=x0+ 2(x - x0)

x'= -4+ 2(-1 +4)

x'=-4 +6= 2

y'=y0+ 2(y - y0)

y'= -3+ 2(-3 +3)

y'=-3

A'(-4,1)

B'(-4,-3)

C'(2,-3)

A beach diver descends 110 feet in 10 minutes at a constant rate. Find the rate of the beach diver’s change in position per minute?

Answers

Answer:

11

Step-by-step explanation:

We are dividing.

110 / 10 = 11

the answer is 11 bc were dividing.
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