Mathematics High School

Finding the nth term of this sequence: (by the way I'm learning quadratic sequences=
-2 -8 -18 -32 -50

Answers

Answer 1

Answer:

n^2+2n+1

Step-by-step explanation:

-2-8-18-32-50

difference=-6-10-14-18

common differences=-4-4-4-4-4

 -2-8-18-32-50

n^2=1,4,9,16,25

minus it

=-1,-4,-9,-16,-25

differences 2,5,7,9

common differences=2

2,4,6,8

so 2n+1

so the answer is n^2+2n+1

Related Questions

Danni walked 2 miles, and Wendi walked 10,500 feet. Which statement is accurate?
A) Wendi walked farther than Danni.

B) Danni walked farther than Wendi.

C) Danni walked twice as far as Wendi.

D) Danni and Wendi walked equal distances.

Answers

Answer:

B) Danni walked farther than Wendi.

Step-by-step explanation:

a mile is 5,280 feet. 5,280 + 5280 = 10,560

.Triangle ABC is right angled at B,  AB= 8 cm, BC = 15 cm, find AC​

Answers

Answer:

17

Step-by-step explanation:

bill heads north driving at 55 mph and jane heads south driving at 60 mph. How long before they are 862.5 miles apart?

Answers

Answer:

bill heads;15.68

jane heads;14.38

Step-by-step explanation:

862.5÷55=15.68

862.5÷60=14.38

Leo bought 6 glasses and 6 mugs. Leo knows that he was charged $3.99 for
each
mug
and that the total bill before tax was $65.88. Write and solve an
equation to determine how much Leo was charged for each glass

Answers

Answer:

filedownload.ashx

Which of the following statements must be true based on the diagram below.please help

Answers

Answer:

A: ST is a segment bisector

Step-by-step explanation:

ST is a segment bisector. Point S cuts in between segment QP. While Point T cuts between segment PO.

Leala can write a 500- word essay in an hour. If she writes an essay in 10 minutes, approximately how many words do you think the essay contains?

Answers

Answer:

about 83

Step-by-step explanation:

Can someone tell me the answer to this please I got this wrong on my first attempt ._.

Answers

Answer:

36

Step-by-step explanation:

FG ≅ QG

Its the same as the other side

24 and 24

so 36 and 36

:)

Plz Help! A B C or D​

Answers

Answer:

B

Step-by-step explanation:

go download symbolab and enter the quenstion it wil give you many help!

Write an equivalent expression for 6(3g + 2) - 2g. Simplify the expression.

Answers

Answer:

16g + 12

Step-by-step explanation:

6(3g + 2) - 2g

18g + 12 - 2g

16g + 12

What is the value of x in the equation 3(2x + 8) = 0? (4 points) Group of answer choices −8 −4 4 8

Answers

Answer:

-4

Step-by-step explanation:

Start with 3(2x + 8) = 0.

Distribute the 3 to the 2x and 8 in the parentheses.

That will give you 6x + 24 = 0.

Subtract 24 from both sides, which will get x by itself and leave you with 6x = -24.

Divide both sides by 6 to get x = -4.

That is your answer.

Hope this helped.

3(2x + 8)= 0
3(2x) = 6x
3(8) = 24
6x + 24 = 0
24-24
0-24
6x = -24
-24/6
X = -4

How many faces does a right rectangular prism have if it has 8 vertices and 12 edges?
A. 4 faces
B. 6 faces
C. 8 faces
D. 10 faces

Answers

Answer:

B

Step-by-step explanation:

I think

Justin worked 12 hours and 4 minutes on Saturday and 13 hours and 41 minutes on Sunday. How many hours did Justin work this weekend?

Answers

Answer:

Justin worked 25 hours and 45 minutes.

25 3/4 hours total

First add the hours together.  

12 + 13 = 25

Then add the minutes together.  

4 + 41 = 45

So 25 hours and 45 minutes

or

25 3/4 hours

45 minutes is also 3/4 of an hour

do all straight lines that are functions have inverses?

Answers

Answer: Not all Functions have a inverse

Happy To Help :)

Step-by-step explanation:

What are two numbers whose product is 81 and their sum is -18?

Answers

Answer:

-9

Step-by-step explanation:

-9  * -9 = 81

-9 + -9 = -18

Answer: -9

it starts at 10 and stops at 4​

Answers

6 hours
••••••••••••••••••

Help me rn pleasee !!

Answers

Answer:

There are two solutions for x;

x = 0

x = [tex]-\frac{3}{2}[/tex]

Step-by-step explanation:

Answer:

x = 0 or -3/2

Step-by-step explanation:

( 2 x +  3 ) ^2  −  6 x −  9  =  0 ---> distribute

4x^2 + 6x + 6x + 9 - 6x - 9 = 0 --> add the 9's together

4x^2 + 12x  - 6x = 0 --> combine like terms

4x^2 + 6x = 0 --> common factor

2(2x^2 + 3x) = 0 --> divide by 2 on both sides

2x^2 + 3x = 0

then you should use the quadratic formula (can't add here or the explanation would take too long)

Please help I need 6543÷29 options for answers are below in picture

Answers

Answer:

6543÷29

=225.620.......

Guinea made a scale drawing of a window she is making for her house.

1 centimeter = 3 inches. Triangle A B C. Side A is 4 centimeters, side B is 3 centimeters, and side C is 5 centimeters.
Which proportion could Guinea use to find the length of side B?

Answers

Answer:

The answer is c: 1cm/3in = 3 cm/Xin

Step-by-step explanation:

Find the missing angle measures.
What is m∠2?
a 40
b 60
c 50
d 100

Answers

I think C.50 is the answer

the cost of a DVD is $29.95. Sales tax is 6%. About how much will the DVD cost, including tax? ​

Answers

Answer:

31.75$

Step-by-step explanation:

To add sales tax, you multiply the amount you start with by 1 + what the tax is.

In this case, you multiply 29,95 by 1.06%.

29.95 × 1.06% = 31.747 or 31.75$

Answer:

30.01

Step-by-step explanation:

29.95+6%= 30.01

braiblest plz:)

hope this helps

HELP PLEASE!!!!
ill mark brainliest! 50 points!!

Answers

Answer:

sorry i dont understand

Step-by-step explanation:

will figure out...

The length of a rectangle is three more than twice it’s width. The perimeter of the rectangle is 246 cm. Write an equation to find the perimeter and then find the length of the rectangle.

Answers

Answer:

83 cm

Step-by-step explanation:

Let the length of the rectangle be L cm and the width be W cm.

L= 2W +3 -----(1)

Perimeter of rectangle= 2(length) +2(width)

2L +2W= 246 -----(2)

Substitute (1) into (2):

2(2W +3) +2W= 246

Expand:

4W +6 +2W= 246

Simplify:

6W +6= 246

Divide both sides by 6:

W +1= 41

W= 41 -1

W= 40

∴ width of the rectangle is 40cm.

Substitute value of W into (1):

L= 2(40).+3

L= 80 +3

L= 83

Thus, the length of the rectangle is 83 cm.

Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an equation to represent this situation. (4 points)
Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. Write an equation to represent this situation. (4 points)


Part C: Explain how the equations from Part A and Part B differ. (2 points)

Answers

Answer:

Part A 70x+50=250

Part B(75x + 35) = 250 - 5x

Step-by-step explanation:

Here to form an equation you must add all the money that she earned and subtract the money that she had to spend We dont know how many car washes she did, so we must represent it with a variable, or x.

Answer:

Step-by-step explanation:

Part A: Rhett washed 3 cars and earned $50 in tips. y=70x+50

Part B: $75 - $5 = $70 (this is the amount charged minus the amount needed to get the job done per car wash)

the +35 is the tips extra/ constant that will be added after the jobs are done.

x is the number of car washes done

y would be the profit received.

so y = 70x + 35 (profit = value of car wash * number of cars washed + tips)

what is 5x plus 2 equals 4x -9

Answers

Answer:

x=-11

Step-by-step explanation:

5x+2=4x-9

5x-4x=-9-2

x=-11

what is green and blue? HELP

Answers

Answer:

green horizontal asymptote: y = -2

blue horizontal asymptote: y = -4

Step-by-step explanation: Exponential functions have a horizontal asymptote

1000 Chevrolet times 1000 Lamborghini
​

Answers

Answer:

1000000 chevginis

Step-by-step explanation:

Answer:

1000000 sports cars (Chevrolet and Lamborghinis)

Step-by-step explanation:

1000x1000

What is 4 times 1 6/7. Write in the simplest form

Answers

Answer:

7 43/100

Step-by-step explanation:

4*1 6/7=4 24/7 which equals 7.43, or 7 43/100

Answer:

7 3/7

Step-by-step explanation:

4 * 1 6/7

1 = 7/7, so 1 6/7 = 7/7 + 6/7 = 13/7

4 * 13/7 = 52/7

7 can fit into 52 at most 7 times (because 7*7 is 49, and less than 52)

This leaves us with 3 left over

4 * 1 6/7 = 7 3/7

what is the answer to 4x+8

Answers

Answer:

×=-2

Step-by-step explanation:

4×+8=0

4x= -8

therefore;

x= -2

I need help on this problem i dont know if the answer is: 16 or 48,but i dont know for sure so if my guess if wrong please tell me.**Thank you so much if you help me will make brain if you answer correctly!** =3
*no links!*

Answers

Answer:

You will need 32 ounces

Step-by-step explanation:

2 pounds x 16 = 32 ounces

300 cal / 3 oz = x / 32 oz

(300 * 32) / 3 = 3,200 calories

D
Which of the following number Satisoy
the equation - 6+2=-12?
a) 2
b) 6
C) -6. D) -2

Answers

Answer:

C) -6

Step-by-step explanation:

-6 + 2 = -4 not -12.

But -6 + (-6) = -12.

Hope this is what you were looking for :)

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