Write down the 3rd term in the sequence given by: T(n) = 2n² + n

Answers

Answer 1

Answer:

T(3) = 21

Step-by-step explanation:

To find the third term, substitute n = 3 into T(n) , that is

T(3) = 2(3)² + 3 = 2(9) + 3 = 18 + 3 = 21


Related Questions

I need help on this question please

Answers

Answer: should be 54m but im not 100% sure if its not right lmk

Step-by-step explanation:

Find the missing side length.
Assume that all intersecting sides meet at right angles.
Be sure to include the correct unit in your answer.


Help please Asap!!!

Answers

Answer:

4 cm, if you subtract 9 from 13 you get four.

Dion predicted that he would sell 87 art prints. He actually sold 100 art prints. What are the values of a and b in the table below?

Percent Error

Item
Approximate value
Exact value
Error
Absolute error
Ratio
Percent error
Art prints
87
100
a
b


a = negative 13; b = negative 13
a = negative 13; b = 13
a = 13; b = negative 13
a = 13; b = 13

Answers

Answer:

A

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

I need help with these three equations
3x - 2 = x + 10
X+4=19-2x
8z - 20 =z +15

Answers

Answer:

1st answer is 6, 2nd is 5, 3rd is 5

Step-by-step explanation:

3x-2=x+10

3x-x=10+2

2x=12

x=12÷2

x=6

x+4=19-2x

x+2x=19-4

3x=15

x=15÷3

x=5

8z-20=z+15

8z-z=15+20

7z=35

z=35÷7

z=5

plzz mark me as brainliest

Answer:

3x-2=x+10

x=6

x+4=19-2x

x=5

8z-20=z+15

z=5

Step-by-step explanation:

3x-2=x+10

+2 on both sides

3x-2(+2)=x+10(+2)  =>  3x=x+12

subtract x on both sides

3x(-x)=x(-x)+12   =>  2x=12

divide 2 on both sides

2x/2=12/2

= x=6

x+4=19-2x

subtract 4 on both sides

x+4(-4)=19(-4)-2x    =>    x=15-2x

add 2x on both sides    

x(+2x)=15-2x(+2x)     =>    3x=15

divide 3 on both sides

3x/3=15/3

= x=5

8z-20=z+15

subtract z on both sides

8z(-z)-20=z(-z)+15    =>  7z-20=15

add 20 on both sides

7z-20(+20)=15(+20)

7z=35

divide 7 on both sides

7z/7=35/7

= z=5

• Exprimer l'aire A de la partie colorée de la figure ci-
dessous en fonction de x. Donner le résultat sous
forme simplifiée en écrivant les détails.
• Calculer A pour x = 3 et x = 2.

Answers

Answer:

10

Step-by-step explanation:

by dojng lenght into breadth

∠1 and ∠2 are complementary angles. If ∠1 measures 35º, what is the measure of ∠2?​

Answers

Answer:

55 degrees

Step-by-step explanation:

Complementary angles are two angles that equal 90 degrees together so if one angle is 35 degrees then the other must be able to add towards that to make 90 degrees

90=35+∠2

-35     -35

55=∠2

I need help ASAP please
I will give thanks with Brainlist for correct ans.

Answers

rotations, reflections and translations are isometric, this meaning that these transformations do not change the size of the figure.

i hope this helps :)

Identify the correct equation for the graph below.

Answers

The answer is C. The y-intercept is at -3 and the slope is positive which means it has to be y = 1/2x - 3

Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains. If he has 6 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?

Answers

Answer:

2/3

Step-by-step explanation:

Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains. If he has 6 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?

1 decametre = 10 metres

Hence,

10 meters = 6 pieces of ribbon

1 meter = x pieces

Cross Multiply

10x = 6

x = 6/10

x = 2/3 (1 meter pieces of ribbon)

Jenna bought enough lattes for all her friends. Each latte was $3.50
and she gave the barista a $20 bill, who then gave her back $2.50
in change. Write an equation modeling this, with x as the cost per late
How many lattes did she buy?

Answers

Answer: 5 lattes

Step-by-step explanation: Our equation is 20 − 3.5x = 2.5, which means x = 5 lattes.

Answer:

Step-by-step explanation:

y=3.5x (cost function where y is cost and x is the number of lattes)

20-2.5=3.5x

17.5=3.5x

5=x

So she bought 5 lattes.

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

I would be led to believe it was c if you still need help

Classify △ABC
Choose 2 answers:

(Choice A)
A
Equilateral triangle

(Choice B)
B
Isosceles triangle

(Choice C)
C
Right triangle

(Choice D, Checked)
D
Acute triangle

(Choice E)
E
Scalene triangle

(Choice F)
F
Obtuse triangle

Answers

Answer:

b and d

Step-by-step explanation:

Please no more cap answers, actually need help

Answers

Answer:

[tex]\sqrt{8x^{2} }[/tex]+5-3 = 8.12

8.12 rounded to nears whole number is 8

therefore 8.12 rounded down to three decimal places is 8.1

Therefore your answer would be 8.1

If it wont let you add a decimal your answer would also be 8

identify the zeros of each function please

Answers

Answer:

6 zeros in total

Step-by-step explanation:

Answer:29. (-5,0) 30. (-1,0) (3,0) 31. (0,0) (2,0) (8,0)

Step-by-step explanation:

Find the points that lie on the x axis

tell me what is your favorite color

give brainliest and 15 points

Answers

Hmm anxjkssksdmsmsm black

Answer:

purple because when its really dark it looks sick

Step-by-step explanation:

A circle has a mass of 3 grams and a square has a
mass of 2 grams.
What is the mass of a triangle?
an
grams
A.
B. 3 grams
C. 3 grams
D. 11 grams

Answers

3 grams is the answer hope it’s help

4
Eli's family is going to have
a big go-cart race and each
go-cart takes 3- gallon of
-
gas. If there are 7 go-carts,
how many total gallons of
gas do they need to fill up
all the go-carts?

Answers

Answer:

21 gallons

Step-by-step explanation:

You multiply the amount of go-carts(7) by the amount of gas each go-cart takes(3 gallons.) You get 21 gallons for all the go-carts.

Help meeeeeeeeeeeeeee

Answers

Answer:

C find ur x value by solving the simultaneous equations

Answer:

-2

Step-by-step explanation:

6x+4y=-14. X=-2y+7

—————

3

When doing decimals, what does a dot over a number mean? For example, take 24.671, but theres a small dot over the numbers 6 and 1. What do I do and what does it mean?

Answers

Step-by-step explanation:

The dot is called a decimal point. It is also called the decimal separator. It separates whole numbers from fractional numbers.

In this example;

24.671

The numbers before the point, 24 is the whole number

The numbers after the point, 671 are the fractional portion of the number. They represent 6 tenths, 7 hundredths and 1 thousandths.

Also, the number of digits after the point tells you how many decimal place the number is in. In this example the number of decimal places is 3.

Megan finds a bag of 24 craft bows at the store. The bag indicates that 23 of the bows are striped. Megan wants to know the number of bows in the package that are striped. Select ALL the statements that are true.

Answers

Answer: B. Megan can divide the number 24 by 3 and then multiply the result by 2 to find the number of striped bows.

C. Megan can multiply the number 24 by 2 and then divide the result by 3 to find the number of striped bows.

F The number of striped bows in the package is 16.

Step-by-step explanation:

Here's the options:

A. Megan can divide the number 3 by 24 and then multiply the result by 2 to find the number of striped bows.

B. Megan can divide the number 24 by 3 and then multiply the result by 2 to find the number of striped bows.

C. Megan can multiply the number 24 by 2 and then divide the result by 3 to find the number of striped bows.

D. Megan can multiply the number 24 by 3 and then divide the result by 2 to find the number of striped bows.

E The number of striped bows in the package is 36.

F The number of striped bows in the package is 16.

The number of bows in the package that are striped will be calculated as:

= 2/3 × 24

= 16

Based on the options given, the correct answers will be:

B. Megan can divide the number 24 by 3 and then multiply the result by 2 to find the number of striped bows.

C. Megan can multiply the number 24 by 2 and then divide the result by 3 to find the number of striped bows.

F The number of striped bows in the package is 16.

The correct options are B, C and F.

5x + 3y = -15 + y= 2/3x + 9

Answers

-(189/19, 330/19) let me know if you would like an explanation! if i’m wrong please let me know!

Mis. Jackson wants to rent a van for a week it will cost a weekly fee plus 0.20 per mile driven let m equal the number of miles Ms. Jackson drives during the week write an algebraic expression that shows a month rent Jackson will pay for the van for the week

Answers

Complete Question

Mis. Jackson wants to rent a van for a week it will cost a weekly fee plus 0.20 per mile driven let m equal the number of miles Ms. Jackson drives during the week write an algebraic expression that shows a week rent Jackson will pay for the van for the week

Answer:

A = w + 0.20m

Step-by-step explanation:

Step 1

We find the equation for the total amount spent in a week

The total amount to rent the van in a week = A

Weekly fee = w

Number of miles = m

Therefore, thw algebraic expression that shows a week rent Jackson will pay for the van for the week is

A = w + 0.20m

g(x)=-(x+1)(r-1)(-4)
In standard form?? Please help!

Answers

Answer:

g(x) = 4rx + 4r - 4x - 4

Step-by-step explanation:

g(x)= -(x+1)(r-1)(-4)

Camille has a stamp collection she is very proud of. She buys a frame to display her favorite stamps. The frame is 6 inches wide, and a row of 7 stamps fits perfectly across it. How wide is each stamp?

Answers

Answer:

6 ÷ 7 inches

Step-by-step explanation:

The computation of the width of each stamp is shown below;

Given that

The frame is 6 inches wide

And, the row is 7 stamp fits perfectly across it

So, the width of each stamp is

= 6 ÷ 7 inches

Question 8 (4 points)
What is the area of the figure?
10 in
19 in
11 in.
17 in.
A. 223 in 2
B. 277 in 2
C. 267 in 2
D. 110 in 2

Answers

The area of the figure is A. 223 in 2 I did that question yesterday hahah what grade are you in?

Look at the the four patterns below.
-16, -8,-4, -2,
16, 19, 22, 25,
1 + 2 + 4 + 8 +,
16, 12, 9, 27/4,81/16
Which pattern does not belong? Write at least one
sentence to explain your reasoning.

Answers

Answer:

27/4,81/16

Step-by-step explanation:

Eighth grade
What is the surface area?
1 m
1 m
1 m
square meters

Answers

Answer:

If those are the dimensions the surface area is 6 meters

Step-by-step explanation:

cubes have six sides and each side is one unit

What is the solution to the equation below? Round your answer to two decimal places. 6 • e^x =25

A. X= 1.43
B. X= 0.62
C. X=64.50
D. X= 11.33

Answers

Answer:

5

Step-by-step explanation:

i think 5= 25 divided 5 or 2 decimal point

what is the HCF of 9a² -6ax​

Answers

Answer:

I love you hddmekelejeyeneoeleemeh

please tell me answers I am given you brainliest ​

Answers

What the question? Am I suppose to find an angle or what?

Answer:

what is the question or whatever

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