Mathematics High School

The function r(n) = 5n² + 1 represents the value of the nth term in a sequence.
What is the sum of the 1st and 3rd terms of the sequence?

Answers

Answer 1

Step-by-step explanation:

a_n=5n²+1

➜a_1=5(1)²+1

➜5×1+1

➜5+1

➜6

➜a_3=5(3)²+1

➜5×9+1

➜45+1

➜46

Related Questions

Help ASAP, mathematics trig

Answers

Answer:

D

Step-by-step explanation:

Using the tangent ratio in the right triangle

tanθ = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{7}{4}[/tex] , then

θ = [tex]tan^{-1}[/tex] ([tex]\frac{7}{4}[/tex] ) ≈ 60° ( to the nearest degree )

Slope of the line that passes through (8,-9) and (14,-9)

Answers

Answer:

slope = 0

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (14, - 9)

m = [tex]\frac{-9+9}{14-8}[/tex] = [tex]\frac{0}{6}[/tex] = 0

if A={1,2,3,4} and B={3,4,5,6} are two sets,find (A-B).​

Answers

Step-by-step explanation:

[tex](A-B) = ( - 2, \: - 2, \: - 2, \: - 2)[/tex]

IF YOU HELP ILL GIVE U FREE COOKIE Charlotte earns 212 minutes of playing video games for every 5 math homework problems she completes. Tonight's homework has a total of 24 math problems. What is the MOST time she will be able to play video games tonight? PLEASE HELLPPPPp

Answers

Answer:

16.96hrs or 1017.6mins

Step-by-step explanation:

24 / 8 = 4.8

212 x 4.8 = 1017.6 mins

16.96 hours

What are the values of c and d in the matrix subtraction below? [ 6 8 -11 15 ]-[c+2 3 -5 d-4 ]=[ 22 5 -6 17] C=-14 d= -6 c=-18 d= -6 c=-14 d=2 c=-18 d=2

Answers

Answer:

c=-18 d=2

Step-by-step explanation:

[ 6 8 -11 15 ]-[c+2 3 -5 d-4 ]=[ 22 5 -6 17]

The equation tells that when the two matrices are subtracted we get the resultant matrix.

Each element of the first matrix corresponds to each element of the second matrix

From above

6- (c+2)= 22

6- c-2= 22

4-c= 22

-c= 22-4

-c= 18

c= -18

And

15-( d-4)= 17

15- d+4= 17

19-d= 17

-d= 17-19

-d= -2

d= 2

Answer:

D

Step-by-step explanation:

c= -18

d= 2

find the volume of the figure ​

Answers

Answer:

1920

Step-by-step explanation:

Volume of larger rectangular prism: 10 * 8 * 14 = 1120

Volume of smaller rectangular prism: 10 * 10 * 8 = 800

Volume of whole prism: 1120 + 800 = 1920

Hence, your answer is 1920

Please help I'm struggling​

Answers

Answer:

the first is  1/5 what are the other options

Step-by-step explanation:

1.On field day, the P.E. coach divides the students into two groups, Positives and Negatives. He wants to have the same amount of students of each group on each side of a rope, to play Tug-of-War.

He uses the following expression to figure out how many students of a certain group he still needs to create an even match.

–5 + 20

Evaluate the expression and write the answer below. Write only a number, either positive or negative. No letters

Answers

Answer:

-15

Step-by-step explanation:

because -5 + 20 = -15.

The coach needs 15 negative players to join the negative team in order to get 20 players (which would make the teams even)

Write an exponential function in the form y=b^x that goes through the points (0,9) and (3,4608)

Answers

Answer:

y = 9 * bˣ

Step-by-step explanation:

y = a * bˣ

9 = a * b⁰ = a * 1

a = 9

4608 = 9 * b³

b³ = 512

b = 8

y = 9 * bˣ

Someone answer this for me

Answers

Answer:

I think it is B or 17 ft

Step-by-step explanation:

Hope this helps. Tell me if I'm wrong

Answer: Probably 30

Step-by-step explanation: If you multiply 12 x 5 = 60, which we don't see that answer. I'll say C because 12 + 12 is 24. Add 5 and you get 29. The closer answer to 29 is 30. I could be wrong because I'm only in Middle School and kinda get confused with questions like these.

What is the area of a circle with a diameter of 5.4

P.S Show work

Answers

If you use 3.14 in terms of pi, it's 22.8906. If you use the pi symbol, it is 7.29π.

Explanation: You divide 5.4 by 2 to get the radius. The radius is 2.7 The formula for area of a circle is πr^2. You square 2.7 and get 7.29π and then multiply by 3.14 or leave it as 7.29π

Find the area of the complex figure below.
A. 84 in^2
B. 90 in^2
C. 96 in^2
D. 102 in^2

Answers

Ok so you have to do the area of three different shapes then add them together so to find the area for the square and rectangle you need to find the sides to be equal so the square is already set you would do 6 times 5 and get 30 so how to do the rectangle is add 7 and 5 and get 12 so you would do 10 - 6 and get 4 and then do 12 times 4 which is 48 so, so far you have 78 for an area but you a triangle so you have a base of 3 because we found that the rectangle is 12 so 15-12 is 3 then we did the side for the rectangle which was 10-6 is 4 so for the triangle you would do 1/2 times 3 times 4 which would be 6 so 78 plus 6 and you would get 84 so A is your answer

Please help I’m strugglinggg Oml and this is due right now

Answers

Answer:

i dont understand thisssssssss im sorrrryy what is c(5)?????? huhhhhhhhhh

Step-by-step explanation:

Terry rents a kayak while he is on vacation. He is required to pay a deposit of $95 plus an additional $11.50 per day. Terry only has $150 to spend on kayaking. Write and solve an inequality you can use to determine the maximum number of days Terry can afford to rent a kayak.

Answers

Answer:

A maximum of 4 days

Step-by-step explanation:

Inequality: 95 + 11.50x ≤ 150

Okay so the 95 is his fee. Then for everyday, it's 11.50 and we don't know how many days yet, so 11.50x. The 95 dollars and the 11.50x has to equal to or less than 150 since that is how much he has to spend on vaca.

95 + 11.50x ≤ 150

-95                   -95

11.50x ≤  55

/11.50       /11.50

X=4.78260869565

You would round down since he has a budget.

please help me with full calculations

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

When rotation is 180° or 360°, the direction is immaterial. The result is the same no matter which direction you go.

ASAP!! ILL GIVE BRAINLEST

In any given pair of similar three dimensional figures, if the ratio of the sides is a:b, then the ratio of
the surface areas is...

A:B
A^3:B^
A^-1:B^-1
A^2:B^2

Answers

I think A^3:B^

Explanation:

It is 3 dimensional, so the surface area would be 3x bigger, so A^3:B^

there are 10 children in line. four are girls the rest are boys. which number sentence can be used to find the number of boys in line?

Answers

Answer:

Im sorry i dont understand what you mean by sentence but there are 6 boys

Step-by-step explanation:

What are all the zeros of the function f(x) = 4x^2 + 8x + 3?

Answers

Answer: -1/2 and -3/2

Step-by-step explanation:

X1= -3/2 x2= - 1/2

I think I’m not sure

a plastic box contains balls of different colors. among them, 18 balls were chosen. what does the number 18 represent?

Answers

Answer:

the amount of that were pulled out

Step-by-step explanation:

what is the image of the point (-2,7) after a rotation of 180 degrees counterclockwise about the origin?

Answers

Answer:

(- 7, - 5 )

Step-by-step explanation:

With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.

Which of the two helicopter companies gives you the best ride for your money?

Answers

Answer:

B

Step-by-step explanation:

The Answer is B
I already take this question before

Someone help me with this pls

Answers

answer:

=y^(-4+3)

=y^ (-1)

Is this a polygon or trapezoid?

Answers

Answer:

No

Step-by-step explanation:

this is my opinion so No

No a trapezoid has 2 parallel lines


Help correct get brainly lol

Answers

Answer:

there are seven variable terms

Step-by-step explanation:

variables are letters (a, b, c, etc.)

i hope this helps :)

Answer:

The answer is 4 because are all separate variables (also  combines into one variable)

Step-by-step explanation:

10)
A) x + 2 y = 1
C) x - 2y = 10
B) x-1= 2
D) x – 2y=

Answers

Answer:

B)

Step-by-step explanation:

y-intercept = -2

slope = 1

in slope-intercept form the line would be:  y = x - 2

if we subtract 'x' from each side we get:

-x + y = -2

we don't want to leave 'x' as negative so we can multiply each term by -1 to get:

x - y = 2

Which is a number that can be written as a fraction in the form /?

Answers

Answer:

the third one/second one

Step-by-step explanation:

If the perimeter of the polygon is 42, AB = ______?

Answers

Answer:

AB = 7

Step-by-step explanation:

The polygon pictured is a hexagon, which means that it has 6 equal side lengths. The perimeter is 42. AB is the length of one side.

Perimeter = 6 x length of one side

If you plug everything you know in the equation, you would get...

42 = 6 x length of one side

42 ÷ 6 = 7

So, 7 is the length of AB, since in a hexagon, all sides are the same length.

The length of side AB  is 7.

What are regular polygons?

A regular polygon is a closed shape that has straight sides of equal length and interior angles of equal measure.

This means that all of the sides and angles of a regular polygon are congruent (i.e., have the same size).

We have,

The given polygon is a hexagon since it has 6 faces.

Now,

The six faces are equal in length.

So,

6 faces length = 42

Now,

Each face = x

And,

6x = 42

x = 42/6

x = 7

Thus,

The length of AB  is 7.

Learn more about regular polygons here:

https://brainly.com/question/24328525

#SPJ

Which ones the right answer?

Answers

The answer is D. (7,8)

You are able to count from 0 to ten, and you always put the x number first!

Hope this helps :)

rewrite each expression as single exponent. Answer all of them Please!

1} 11 to the second power times 11 to the tenth power

2} 13 to the 6 power times 13 to the forth power

3} 14 to the power 9 times 14 to the tenth power

4} 2 to the power 4 times 2 to the forth power

5} 7 to the 8 power times 7 to the 6 power

6} 3 to the power 3 times 3 to the 9 power

Answers

Answer:

[tex]11^2 *11^10 \\13^6 *13^4\\14^9 * 14^10\\2^4*2^4\\7^8*7^6\\3^3*3^9[/tex]

Step-by-step explanation:

Please Mark Brainliest for helping

Gerardo makes $18 per hour at Starbucks. Tomorrow he is going to receive a raise totalling 20% of his hourly wage. What will he be making per hour straying tomorrow.

Answers

to get his wage for the next day, you would do 18x1.2, which equals 21.6, so he would now be making $21.6 per hour.

Other Questions
WILL GIVE BRAINLIEST PLS ANSWER (PERSONAL AND FAMILY FINANCE)Yusefs financial advisor tells him that he has made a great budget. Why was he MOST likely successful with his budget?A. He refused to accept any changes to it.B. He did not share the information with his family.C. He chose realistic amounts for each category.D. He was the only member of the family who crafted it. who is our economy minister?? ans me fast I will mark it as Brianlest What process occurs when an oceanic plate pushes beneath a continental plate?subductionABreductionmagnetismDsuccession What do you used to find perimeter ***WILL MARK BRAINLIEST*** Write in Scientific Notation! #2 Use the sentence to answer the question.I love going to the fair during the summer.Which relationship exists between the clauses?(1 point)a relationship within a single independent clausea relationship between a dependent clause and two independent clausesa relationship between a dependent clause and an independent clausea relationship between two independent clauses Customers have become increasingly anxious about breaches of privacy, and it is essential for marketing researchers to _________. Group of answer choices conceal consumers' addresses and phone numbers when they share information share information only with the sales department for follow-up respect and protect the privacy of customers without question refer to the company's code of ethics to determine what information can be released All of these Which scatter plot could haveA trend line with the equation below? Y=x+4 Which model illustrates a compound A, b, c, d, What is the vertex of the absolute value function below? WHATS THE ANSWER? MULTIPLE CHOICE 50 PTS hello please help ill give brainliest pls This drawing shows a human body system. What is the primary function of this body system? What was significant about the timing of the changing of the Georgia state flag in 1956? A. The change came near the 100 year anniversary of the beginning of the Civil War.B. The change game following the U.S. Supreme Court's ruling to desegregate schools.C. The change came following Martin Luther King Jr.'s "I Have a Dream Speech."D. The change came because civic leaders and businessmen argued that it was bad for their business. what can you conclude about the connection between a leaf's size and the amount of sunlight it absorbs? (a). The smaller a leaf is, the more sunlight it absorbs. (b). The larger a leaf is, the more sunlight it absorbs. (c). The connection between the size of a leaf and the amount of sunlight it absorbs cannot be predicted. (d). Large leaves and small leaves absorb about the same amount of sunlight. Abigail, Henry, Nelson, and Olivia, whose last names are Brown, Garcia, Lewis, and Murphy, are a dolphin trainer, a hotel chef, a landscaper, and a surgeon.Find each persons full name and occupation.1. Henry and Murphy work outdoors, but Nelson and Brown work indoors.2. The surgeon does not know Abigail or Brown.3. The landscaper, who is not Lewis, is expert at his work. (x2 + 12x + 14) = (x + 1). plz help urgent so easy will give brainliest mark for the first answer given!! Potts company uses a job costing system and had the following data available for 20X9.Cost of raw materials purchased on account $ 75,000Cost of raw materials requisitioned(includes $2,000 of indirect materials) $ 43,000Direct labor cost incurred $ 75,000Manufacturing overhead costs incurred $ 95,000Cost of goods completed $ 226,750Cost of goods sold $ 138,000Raw materials inventory, Jan. 1, 20X9 $ 15,000Work in process inventory, Jan. 1, 20X9 $ 32,000Finished goods inventory, Jan. 1, 20X9 $ 31,000Pre-determined manufacturing overhead rate 125% (as a percent of direct labor cost) Refer to Case 1. The journal entry to record the total materials placed into production would include which of the following? A) debit to manufacturing overhead for $41,000 B) debit to work in process for $43,000 C) debit to work in process for $41,000 D) credit to manufacturing overhead for $2.000 Refer to Case 2. The journal entry to record the actual manufacturing overhead costs incurred would include which of the following? A) debit to manufacturing overhead $95,000B) debit to work in process for 93.750B) credit to work in process $95,000 C) credit to manufacturing overhead $93,750 SHOW YOUR WORK PLEASE!!