1) Find a formula for a sub n for the arithmetic sequence a sub 1 = 7, d = 12.


2) Write the first 5 terms of the geometric sequence a sub 1 = 2, r = 2.

Answers

Answer 1

Answer:

Step-by-step explanation:

nth term = a₁ + (n-1)d = 7 + (n-1)12

:::::

nth term = a₁rⁿ⁻¹ = 2×2ⁿ⁻¹ = 2ⁿ

a₁ = 2

a₂ = 4

a₃ = 8

a₄ = 16

a₅ = 32


Related Questions

Given that ac=22 and bc=7, find ab

Answers

Answer:

I'll look into that answer

Skylar has a collection of 60 comic books. She gave away some of her comic books to her friend. After she gave them away, she had 48 still. What percent of her comic books did Skylar give away?

Answers

Answer:

the percent of her comic books did Skylar give away is 20%

Step-by-step explanation:

Given that

Skylar has a collection of 60 comic books

She gave away some of her books

And she left by 48 books

we need to find out the percent of the skylar give away books

= (60 - 48) ÷ 60

= 12 books ÷ 60 books

= 20%

Hence, the percent of her comic books did Skylar give away is 20%

What type of sequence is this:
a1 = 2
an = an-1+4

Answers

Answer:

a

Step-by-step explanation:

the common d/ce is four but not common ratio

The type of Sequence from [tex]a_1[/tex] = 2 and [tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4 is Arithmetic and recursive.

What is Arithmetic Sequence ?

In algebra, an arithmetic sequence is a set of numbers whose every two consecutive terms have the same difference.

An arithmetic sequence is one in which each phrase grows by adding or removing a certain constant, k. In a geometric sequence, each term rises by dividing by or multiplying by a certain constant k.

For example in the arithmetic sequence 3, 9, 15, 21, 27, the common difference is 6.

Given:

[tex]a_1[/tex] = 2

[tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4

We know that the Arithmetic Sequence is of two forms

Explicit Form : [tex]a_n[/tex] = a+ (n-1)d

and, Recursive form: [tex]a_n[/tex] = [tex]a_{n+1}[/tex] + d

Now, we have [tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4 which is in the form of Recursive.

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Fin.ish the lyr.ics: What can I say exce.pt your​

Answers

Answer:

go pico yeah yeah ahhahshdhxhxxj

Please let me know the answer to this

Answers

I think it’s number 2 sorry if it’s wrong!!

The equation 3x – 2y = 18 is in slope intercept
form.
If the y variable was isolated, it would be in
1
form.
(Use all lowercase letters when writing the answers)

Answers

Given:

The equation is:

[tex]3x-2y=18[/tex]

To find:

The slope intercept form of the given equation.

Solution:

Slope intercept form of a line is:

[tex]y=mx+b[/tex]

Where, m is slope and b is y-intercept.

We have,

[tex]3x-2y=18[/tex]

It is not in the slope intercept form.

We need to isolate variable y to get the slope intercept form.

The given equation can be rewritten as:

[tex]-2y=-3x+18[/tex]

[tex]y=\dfrac{-3x+18}{-2}[/tex]

[tex]y=\dfrac{-3x}{-2}+\dfrac{18}{-2}[/tex]

[tex]y=\dfrac{3}{2}x-9[/tex]

Therefore, the slope intercept form of the given equation is [tex]y=\dfrac{3}{2}x-9[/tex].

In a department store, a $190 phone is marked, "Save 15%."

a)What is the amount of the discount?

b) What is the sale price of the phone?

Pls help
work out or just help me

Answers

15% of 190 = 28.5

190-28.5=161.5

A: 28.5

B: 161.5

Geometry help please. Complete the similarity statement, in the box below, of these two triangles.

Answers

Answer:

ΔIJK ≈ ΔXVW

Step-by-step explanation:

BRAINLIEST plus 30 points IF NO LINKS!
PLZ HELP!

Answers

The answer is quite simple just multiply the three to the floor and you’re basically the whole answer is just to write the line

Answer:

3 is A 2 is 7 or around 32 and then 1 you gotta figure it out.

Step-by-step explanation:

This may not be correct but hopefully it is..

Question Progress
Homework Progress
37141 Marks
In a class of 32 students
the mean height of the 14 boys is 1.56 metres
the mean height of all 32 students is 1.515 metres.

Work out the mean height of the girls.

Answers

Girls are 4ft tall
Hi sir i just sent you an invite for a meeting at

Question 1 (1 point)
Which inequality is a true statement?

Select each correct answer.

Question 1 options:

−3≤−1

−3>−1

−3=−1

−3<−1

−3≥−1-

Question 2 (1 point)
Which statement is true?

Question 2 options:

7.11<−7.1

7.11≤−7.1

7.11>−7.1

7.11=−7.1
Question 3 (1 point)
Which value of x is a solution of the inequality?

x−(−3)≥7


Question 3 options:

x=−5

x=8

x=2

x=3.5
Question 4 (1 point)
Which value of x is a solution of the inequality?

x−6>−2


Question 4 options:

x=24

x=11

x=20

x=18
Question 5 (1 point)
Which value of x is a solution of the inequality?

−2x<−18


Question 5 options:

x=32

x=8

x=−27

x=2

0 of 5 questions saved

Answers

False.                            7.11 < 7.1       x=8     x=11    x=8

True.

False.

False.

True.

y/8 = 5

what dose y = ?

Answers

Y= 40

Explained:

Solve for y
by simplifying both sides of the equation, then isolating the variable.

Select the situation below that can be represented by the expression 1/6 divided by 3

Answers

1/6 means "one-sixths"

÷ 3 means "divided by three"

Full sentence

One-sixths divided by three

Find the similar sentence in the options.

It's letter (D) One-sixths of a yard cut into 3 equal lengths.

Cutting into equal lengths is the same as saying "Divide"

Louise has a $75 gift card for her favorite toy store. She buys a model car kit for $22.79 and a doll for $19.95. What is the remaining balance on Louise's gift card?

Answers

Answer:

Louise has a remaining balance of $32.76

Step-by-step explanation:

MATHEMATICAL CONNECTIONS Find the dimensions of the polygon with the given area.
Area = 44 ft2

Answers

Answer:

Length = 11

Width = 4

Step-by-step explanation:

The value of dimension are;

Length of polygon is 11 ft.

Width of polygon is 4 ft.

Here,

Area of polygon = 44 ft^2

Length of polygon = ( x - 5 ) ft

Width of polygon = ( x - 12 ) ft

We have to find the dimension of polygon.

What is the polygon?

A two-dimensional geometric figure that has a finite number of sides, is called polygon.

Now,

Area of polygon = 44 ft^2

Length of polygon = ( x - 5 ) ft

Width of polygon = ( x - 12 ) ft

Since, Area of polygon = length x width

Hence,

[tex]44 = ( x - 5 ) ( x - 12 )\\\\44 = x^{2} -5x-12x+60\\\\x^{2} - 17x + 16 = 0[/tex]

After factorizing we get;

[tex]x^{2} - 16x - 1x + 16 = 0\\\\x ( x-16) -1 ( x - 16)= 0\\\\(x-1)(x-16)=0[/tex]

[tex]x = 1, x = 16[/tex]

Since, x = 1 is not possible because its gives the values of dimension in negative.

So, x = 16

Now,

Length of polygon = ( x - 5 ) ft = 16 - 5 = 11 ft

Width of polygon = ( x - 12 ) ft = 16 - 12 = 4 ft

Therefore, Length of polygon is 11 ft.

                Width of polygon is 4 ft.

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Pls help. Due in 5 mintues pls.

Answers

It would be 18 days because you would have to look at the factors of 6 and 9. 6 times 3 is 18 and 9 times 2 is 18. Both have 18 in common in the first 2/3 numbers. Hopefully this makes sense.

Use elimination to solve this

Answers

The solution is (-7/2 , 3)

Explanation:
#1 : I eliminated the x value which will leave me with the y value.

#2: now that you have the y value,, to look for the x value, pick one equation from the equations given. (I used 2x + 4y = 5)

#3: now put your y value into the equation in order to get the x value. (2x + 4(3) = 5)

#4: now just solve for x.

2) What is the measure of

Answers

Answer:

I thought it is 44 since ACB is 88 and it is a central angle with respect to the arc AB while ADB is inscribed angle then it is 1/2 of arc AB then it is 1/2 of 88 which is 44

Dante’s Pizza offers 6 different kinds of toppings: extra cheese, green olives, mushrooms, onions, peppers, and tomatoes.

A 2-topping pizza must have 2 different kinds of toppings on it. Make a list of all the different 2-topping pizzas you could order.

Answers

Answer:

extra cheese, green olives, mushrooms, onions, peppers, and tomatoes.

Step-by-step explanation:

Which expressions are equivalent to the expression 18b+24? Select all that apply. *

A.6(3b+4)
B.6(3b+8)
C.2(96-12)
D.3(6b+8)
E.3(6b+4)
F.2(9b+12)

Answers

Answer:

A, D, F

Step-by-step explanation:

6(3b+4)=18b+24

6(3b+8)=18b+48

2(96-12)=192-24

3(6b+8)=18b+24

3(6b+4)=18b+12

2(9b+12)=18b+24

NO LINKS OR REPORT
Please help!

Find the area of the figure

Answers

Answer:

[tex]Aear=2450cm^{2}[/tex]

Step-by-step explanation:

The figure is made up of a rectangle, parallelogram, and square.

Area of the rectangle is 50(15)=750 cm²

Area of the parallelogram is 40 (40)=1600cm²

Area of the square is 10(10)=100 cm²

The total area is 750+1600+100= 2450 cm²

[tex]-------------------[/tex]

hope it helps..

have a great day!!!

Consider the points.

(2,5) and (-4,5)

If these points are graphed on a coordinate plane, what is the distance between them?

Answers

Answer:

6 units

Step-by-step explanation:

Use the distance formula, [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex].

Plug the x and y values from the given points into the distance formula:

[tex]\sqrt{([-4]-2)^{2}+(5-5)^{2}}[/tex].

Solve the square root:

[tex]\sqrt{36}[/tex] = [tex]\sqrt{6^{2}}[/tex] = [tex]6[/tex]

Which point is on the graph of -5x + 4y = 60​

Answers

You didn’t attach a picture.

{67, 68, 68, 71, 73, 73, 73, 74, 74, 74, 74, 75, 75, 77, 78, 79, 79, 80, 80}
What is the median of the data?
68
71
74
75

Answers

the answer would be 74 i believe sorry if i am wrong

Answer:

74

Step-by-step explanation:

hajahabajsj abshahhahss

A fisherman is standing on the left bank of a stream that is 115 ft wide. The angle of depression from the edge where he stands to the bottom of the stream on the opposite edge is 52˚. How deep is the river at this point? (round to nearest foot).

Answers

Answer:

Step-by-step explanation:

A fisherman is standing on the left bank of a stream that is 115 ft wide. The angle of depression from the edge where he stands to the bottom of the stream on the opposite edge is 52˚. How deep is the river at this point? (round to nearest foot).

What is the perimeter, in units, of Rectangle WXYZ?

Answers

Answer:

I'm pretty sure it's 72, if not i'm sorry

Last year, Mr. Ledger used 18 donuts during the lessons. This year, he used 22 donuts. Place points on the graph to show how many donuts are left at the end of last year's lesson and this year's lesson.

Answers

Answer:

(22,2) and (18,6)

Step-by-step explanation:

Heyyyy so the equation is y=24-x

So let's do 24-x to get y

24-18=6

Same thing

24-22=2

I also did this on Khan so yeah its right :D

Please answer correctly! I will mark you as Brainliest

Answers

Answer:

424.3m³

Step-by-step explanation:

I'm sorry, I don't have any proof because I used the go.ogle calculator, you're just gonna have to trust me on this one

is x the slope , and what is y

Answers

Answer:

wheres the picture?

Step-by-step explanation:

Answer:

y intercept  

Step-by-step explanation:

the point where the graph crosses the y -axis

Which equation represents the data in the table? d 1 2 3 4 5 t 9 13 17 21 25 t = 2d + 7 t = 5d + 3 t = 8d – 3 t = 4d + 5

Answers

Answer:

the last one is correct, the answer is t=4d+5

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