Mathematics High School

Which of the following functions represents an arithmetic sequence?

1. f(n)=3n^2−4
2.f(n)=3n−4
3.f(n)=3^n−4
4.f(n)=3^n−4^n

Answers

Answer 1

Answer:

Option (2)

Step-by-step explanation:

Explicit formula of an arithmetic sequence is always in the linear form.

A(n) = a + (n - 1)d

Here A(n) = nth term of the sequence

a = first term

n = number of term

d = common difference

Formula doesn't have the terms with the exponent.

Therefore, from the given options, expression that represents an arithmetic sequence will be,

f(n) = 3n - 4

Option (2) will be the correct option.

Related Questions

A CD is circular and has a diameter of 6 centimeters. Which is closest to the area of the CD? Use 3.14 for π

Answers

Answer:

28.26 cm²

Step-by-step explanation:

Area of a circle = πr²

         r = diameter/2

         r = 6/2 = 3

A = (3.14)(3)²

A = 28.26 cm²

5) 8 - 3(2b - 7)
Need help

Answers

Answer:

−6b+29

Step-by-step explanation:

Let's simplify step-by-step.

8−3(2b−7)

Distribute:

=8+(−3)(2b)+(−3)(−7)

=8+−6b+21

Combine Like Terms:

=8+−6b+21

=(−6b)+(8+21)

=−6b+29

have a great day <3

Answer: -6b + 29

Step-by-step explanation:

8 -6b + 21

-6b + 29

05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
11
Mason throws a coin 3 times.
The outcome of each throw is either Heads or Tails.
List all the possible outcomes of the 3 throws.
w​

Answers

H= heads T= tails

HHH
HHT
HTT
HTH
TTT
TTH
THH
THT

I DONT KNOW HOW TO DO THIS HELP MEH
Solve the system by substitution.
3x-8y=-50
6y+=x

Answers

Answer:

substitution method is tricky until u get the hang of it. 6y=x so 3x-8y=-50 can be rewritten as 3(6y)-8y=-50.

Step-by-step explanation:

3x-8y=-50.........(1)

6y= x ..............(2)

Substituting x = 6y in (1)

3(6y) - 8y = -50

multiply 3(6y)

18y - 8y = -50

subtract 8y from 18y

10y = -50

divide to get y alone

y = -50/10

y = -5

now substitute. you know what y is. 6y=x / 6(-5)=x

solve :)

6y = x

6(-5) = x

-30 = x

x = -30

i need help with this i really dont understand it. :)

Answers

Answer:

see explanation

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is in the range

difference of 2 sides < x < sum of 2 sides

(11)

given 2 sides 2, 6 , then

6 - 2 < x < 6 + 2

4 < x < 8

(12)

Given 2 sides 4, 12 , then

12 - 4 < x < 12 + 4

8 < x < 16

(13)

Given 2 sides 2, 11 , then

11 - 2 < x < 11 + 2

9 < x < 13

XWV ~ EDC. Find the length of EC.​

Answers

Answer:

EC = 24

Step-by-step explanation:

12/8 = x/16

then you cross multiply

8x= 192

divide

x = 24

) Multiply. What is the product
(3 x 10^9) * (2 x 10^17) in scientific notation?​

Answers

Answer:

6 ×10^26

hope it helped

have a good day mate

Answer:

6x10^26

Step-by-step explanation:

use substitution to solve the system of equations. Write the solution as an ordered pair.
x + 2y = 14
y = 3x - 14

Answers

Answer:

Step-by-step explanation:

x + 2(3x - 14) = 14

x + 6x - 28 = 14

7x - 28 = 14

7x = 42

x = 6

y = 3(6) - 14

y = 18 - 14

y = 4

(6,4)

which of the following types of electromagnetic radiation has the shortest wavelength
a.visble
b.infared
c ultraviolet
d.radio ​

Answers

Answer:

i thought it would be - B. ULTRAVIOLET ray

The temperature at noon was 5 degrees and drops 15 degrees. What is the new temperature?

Answers

The temperature would be -10 degrees

An arrow is moving at 35 m/s and travels for 5 seconds. How far did the arrow travel?
PLEASE SHOW WORK!

Answers

Answer:

175 metres it will travel this is answer hope it helps

175 meters 35 times 5 equals 175

Zuberi also writes a fitness blog. His current number of followers is equal to 3(945−120)+312. A possible series of events that led to this number of followers would be

Answers

Answer and explanation:

The numerical expression 3(945−120)+312 describes the series of events that led to the number of followers on Zuberi's fitness blog

From the expression, Zuberi's followers were tripled after a loss of 120 followers from an initial 945 followers. He then had added followers of 312. Therefore Zuberi's current number of followers is 2787.

Geometry Substitution

I’m confused on how to substitute can someone give me a step by step explanation! Please

Answers

Answer:

x = 3

Step-by-step explanation:

I have attached a picture of me explaining you step by step.

Hope this helps, thank you !!

need help nooooooooooooow what is 12349898 x 989888989-123876 i just made that up but if you can solve is u are awesome

Answers

Answer:

1.222502804534925e16

Step-by-step explanation:

uh i got

1.2225028e+16

Hope this helps i guess

haha :D

If f(x) = 3x - 2 what is f-1(x)

Answers

Answer:

2x-2

Step-by-step explanation:

please lmk if im wrong or not

3x + 160y<=1120 written in slope intercept form

Answers

3x/160 try that let me know if it wrong

Which expression is equivalent to 5(x + 7)??????

Answers

Answer:

5x+35

Step-by-step explanation:

the parentheses means that you can multiply the outer number (5) with the inner numbers/variables

5*x=5x

5*7=35

5x+35

which table of values can be defined by the function y =6x - 2?

Answers


i need help with this question too! :(

Answer:

the answer is A

Step-by-step explanation:

In ΔDEF, ∠DEF measures 30°, ∠EFD measures 60°, and ∠FDE measures 90°. Suppose the triangle were reflected. Which of these statements would be correct about the resulting triangle?

Answers

Answer:

ΔDEF

Step-by-step explanation:

well just bc lol thanks for the points tho

Circle T has diameters RP and QS. The measure of ∠RTQ is 12° less than the measure of ∠RTS.

Circle T is shown. Line segments T S, T R, T Q, and T P are radii. Lines are drawn to connect points S and R and points P and Q to form secants. Angles R T S and Q T P are congruent.

What is the measure of Arc Q P?

78°
84°
88°
96°

Answers

Answer:

96 degrees

Step-by-step explanation:

STR + STQ=180 degree

Substitute

x+x-12=180

2x-12=180

2x=192

x=96

Answer:   D. 96 is the cooorrrreccccct answer

Step-by-step explanation:

edge 2021

Camila drew a triangle with a side that is 24 inches long and a side that is 18 inches long. Which of the following could be the length of the third side of the triangle that Camila drew? Select THREE that apply

A
42 inches

B
40 inches

C
18 inches

D
7 inches

E
6 inches

F
5 inches

Answers

Answer:

The answer is a b and there is one more but I don’t know it I’m sorryyyy

Step-by-step explanation:

one divided by eight over nine

Answers

[tex]\frac{1/8}{9}[/tex] is the answer.

Brainiest if possible? thnx

1 of 2
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Mark uses 3 cups of sugar to make 2 loaves of pumpkin bread. At that rate, how many cups of sugar should he use to make 7 loaves of pumpkin bread?I’ll give brainly just help please

Answers

Answer:

14+3 =15 its answer yon cqn add ma brainlist

Which value is closest to
f-1(-3)
What’s the answer

Answers

I’m not sure but I hope this helps

Multiply -1 by -3
So the answer is f+3

HELP ASAP!!
Which letter is the spinner least likely to land on?

The spinner is least likely to land on
Blank 1:

Answers

The answer is c becuse there’s only 2 cs and 3 of the others

help its easy hefpkfkaj ill give brainiest CRIES SOBS-

Answers

Answer:

Step-by-step explanation:

This is a picture of a coordinate grid.
Which ordered pair describes a point that is located 5 units to
the right of the origin and 2 units below the x-axis?

Answers

Answer:

(5,-2)

Step-by-step explanation: the right of the origin is a positive number and below is negative there fore if you go right 5 it would be 5 and down 2 would be -2 .

The ordered pair describes a point that is located 5 units to the right of the origin and 2 units below the x-axis are (5, -2).

What is the coordinate grid?

A coordinate grid has two perpendicular lines, or axes labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin.

Given a statement for coordinates a point that is located 5 units to

the right of the origin and 2 units below the x-axis,

so the left side of the x-axis is the negative value of x and the right side of x-axis is the positive values of x.

5 units to the right, which is the coordinate of x is 5

and the upper of x-axis is the positive side of the y-axis and down of x-axis is the negative side of the y-axis,

2 units below the x-axis, which is coordinate of y is -2

point is (5, -2).

Hence the coordinates of points are (5, -2).

Learn more about coordinate grid;

https://brainly.com/question/29000992

#SPJ5

Trevor works at a toy factory. Trevor makes 92 toys in four hours. Enter the number of toys Trevor will make in six hours at this rate.

Answers

Answer:

The answer is 138

Step-by-step explanation:

4:92

1:23

23×6=138

Answer:

138

Step-by-step explanation:

92 divided by 4 = 23

Trevor makes 23 toys per hour

23 x 6 = 138

So, Trevor would make 138 toys in 6 hours.

I need help only on 15

Answers

Answer:

4=24

Step-by-step explanation:

because 18/3 is 6 and so is 30/5=6 so we now know that the rate of change is 6

Answer:

okay. :))

Step-by-step explanation:

on number 15, your answer is 24. this is becasue 3(6)=18 and 5(6)=30, and so you plug in 6 and multiply it by 4, which is 24. hope this helped, good luck!

Choose the answer that best translates
the algebraic expression below.

Answers

It’s the 3rd one (A quotient of a number and 2, increased by 9) hope that helps :)
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