what is the explicit formula for the sequence above.

What Is The Explicit Formula For The Sequence Above.

Answers

Answer 1

Answer:

aₙ=-7*2ⁿ⁻¹

Step-by-step explanation:

The common ratio is r=-28/-14=-14/-7=2

The explicit formula for a geometric sequence is aₙ=a₁*rⁿ⁻¹ where aₙ is the nth term, r is the common ratio, and a₁ is the first term.

Given:

a₁=-7

r=2

Therefore, the explicit formula for the sequence is aₙ=-7*2ⁿ⁻¹


Related Questions

help me plz !!!
what´s 6×6×6×6=

Answers

Answer:

hey child !! you should practice some maths okay.

6 × 6 × 6 × 6 = 1296

24

6 × 6 × 6 × 6 = 24

hope it helps

Please help thank you

Answers

Answer B / 77. You need to look at where the line in the rectangle is protruding. Its marked that the line is aiming towards 77 on the graph.

Plz help me with this

Answers

9514 1404 393

Answer:

  d)  -4 ≤ x ≤ 1.5

Step-by-step explanation:

The domain is the horizontal extent of the graph. Here, it goes from about x=-4 to about x = 1.5.

There are solid dots on both ends of the line segment, so the inequality will use ≤ for both limits. The domain is ...

  -4 ≤ x ≤ 1.5

Find x. Round your answer to the nearest tenth of a degree and show work.

Answers

Answer:

35.0

Step-by-step explanation:

14+21 equals 35 and then round to the nearest tenth of a degree and came up with 35.0.

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Answer: CD = 90

Explanation:

4b-30=3b

b = 30

3b = CD

3(30) = 90

CD = 90

I hope this helped!

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Answer:

90

Step-by-step explanation:

it is a square and all the edges have same len;

4b-30 = 3b , b = 30

.

3b = 90

i need help, i don’t understand

Answers

Answer:

a = 14

Step-by-step explanation:

The consecutive angles in a parallelogram are supplementary, sum to 180°

a² - 10a + 7a + 26 = 180

a² - 3a + 26 = 180 ( subtract 180 from both sides )

a² - 3a - 154 = 0 ← in standard form

(a - 14)(a + 11) = 0 ← in factored form

Equate each factor to zero and solve for a

a - 14 = 0 ⇒ a = 14

a + 11 = 0 ⇒ a = - 11

Since a > 0 , then a = 14


The diagram shows the front face of a barn,
The width of the barn is 12 m.
The height of the barn is 8m.
The sides of the barn are both of height 5m.
Work out the area of the front face of the barn.

Answers

Answer:

the front face of the barn: 78m^2

Step-by-step explanation:

look at the photo

The area of a 2D form is the amount of space within its perimeter. The area of the front face of the barn is 78 m².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The diagram of the barn can be made as shown below. Therefore, the area of the front face of the barn is,

Area of the barn front = Area of the triangle + Area of the rectangle

                                     = (5 × 12) + (0.5 × 3 × 12)

                                     = 60 m² + 18 m²

                                     = 78 m²

Hence, the area of the front face of the barn is 78 m².

Learn more about the Area:

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Would someone be able to answer this before 3 PM central?

Answers

Answer:

yes

Step-by-step explanation:

2 The data for average rainfall of two campgrounds in Arizona is listed below.

Campground A (4. 3. 5. 6.4.2

Campground B. 15 6.4 6.4.51

Part A
What is the mean mental rainfall amount for each campground? Please show your work.

Part B. What is the mean absolule deviasan (MAD) for Campground B? Please show your work and round to the nearest tenth if necessary

part C. what is the median for each Campground? please show your work

Answers

Answer:

j

Step-by-step explanation:

Equation practice with vertical angles solve for x

Answers

Answer:

x = -11

Step-by-step explanation:

6x+185 = 8x+207

substract 8 from both side and you will get

-2x = 22

and then divide by -2 and x will be equal to

x = -11

If the rate of inflation is 4.1% per year, the future price p(t) (in dollars) of a certain item can be modeled by the following exponential function, where t is the number of years from today. p(t)=2500(1.041) Find the current price of the item and the price 8 years from today. Round your answers to the nearest dollar as necessary.​

Answers

Answer:

Given function:

p(t) = 2500(1.041)^t

Current price is:

p(0) = 2500(1.041)^0 = $2500

Price after 8 years:

p(8) = 2500(1.041)^8 = $3448 (rounded)

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Answers

Answer:

The second option: 1/4 x (26 - 10) x 3

Step-by-step explanation:

"The difference of 26 and 10" indicates that those two numbers are going to be subtracted, which is why you get (26 - 10).

The "of" in "1/4 of" means that the value after the "of" is getting multiplied by the 1/4: 1/4 x (26 - 10)

The "3 times" means that the 3 is getting multiplied by whatever comes after it, which is why the answer is the second option: 1/4 x (26 - 10) x 3

The answer is 1/4 x ( 26- 10) x3

If Birr 2400 is invested at 6 simple interest per annum, then what is the amount after 4 years?

Answers

Answer:

R2976

Step-by-step explanation:

2400(1+0.06×4)

=R2976

A cylinder has a Height 50 and a diameter 25 what is it’s volume?

Answers

Answer:

Step-by-step explanation:

V≈24543.69

Answer:

1250

Step-by-step explanation:

50×25=1250 hope it helps

Which point of concurrency is NOT always inside a triangle? Check all that apply. A. circumcenter B. incenter C. orthocenter D. centroid

Answers

The point of concurrency which is not always inside a triangle is circumcenter and orthocenter.

We are given that;

The four options

Now,

A point of concurrency is a single point shared by three or more lines1. In a triangle, there are four points of concurrency that are associated with different types of line segments: centroid, incenter, circumcenter and orthocenter.

The centroid is the point of concurrency of the medians of a triangle, which are the line segments that connect the midpoints of the sides to the opposite vertices. The centroid is always inside the triangle.

The incenter is the point of concurrency of the angle bisectors of the triangle, which are the line segments that divide the angles into two equal parts. The incenter is also always inside the triangle.

The circumcenter is the point of concurrency of the perpendicular bisectors of the sides of the triangle, which are the line segments that are perpendicular to the sides and pass through their midpoints.

The circumcenter can be inside or outside the triangle, depending on the type of triangle. For an acute triangle, it is inside; for a right triangle, it is at the midpoint of the hypotenuse; for an obtuse triangle, it is outside

Therefore, by triangle the answer will be circumcenter and orthocenter.

Learn more about the triangle;

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7. Alex has 4 red marbles 3 blue marbles, 2 yellow marbles, 6 purple marbles, and one white marble. Alex picked a marble out of the bag, recorded the color in the chart (to the right), then replaced the marble. He repeated this experiment fifteen times. COLORS FREQUENCY
What is Alex's experimental probability of Red getting a blue?

b. What is Alex's theoretical probability of getting a blue?​

Answers

Answer:

B

Step-by-step explanation:

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Answers

1. X2 +3x+5

2. 5x-1+

3. x2+ 3x-5

Answer:

this is your answer of first one..

Lines with the same slope are

Answers

Answer:

Parallel if they have the DIFFERENT y-intercept

If they don’t have the different y-intercpet, its just coincide

Find the distance between (-1,-2) and (8,9)

Answers

Answer:

[tex]\sqrt{202}[/tex] units or 14.2 units (rounded to the nearest tenth)

Step-by-step explanation:

To find the distance between a pair of two points, use the distance formula  [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]. Substitute the x and y values of (-1,-2) and (8,9) into the formula and simplify:

[tex]d = \sqrt{(-1-8)^2+(-2-9)^2} \\d = \sqrt{(-9)^2+(-11)^2} \\d = \sqrt{81+121} \\d= \sqrt{202}[/tex]  

So, as an exact answer, the distance is [tex]\sqrt{202}[/tex] units.

(To find the decimal approximate of that answer, enter it into a calculator. This would make the decimal approximate 14.2 units, when rounded to the nearest tenth.)  

Answer:

14.2

Step-by-step explanation:

All you need to do is plug the coordinates into the distance formula.

√(x2 - x1)² + (y2 - y1)²

√[8 - (-1)]² + [9 - (-2)]²

√(9)² + (11)²

√81 + 121

√202

= 14.2

Can someone please answer quick. I only have two minutes to answer the question.

Answers

it’s -4. because it passes through the vertex. it’s x=-4


Help me pleasseee!!!

Answers

Answer:

Using x=5, then x exponent 2 = 5 exponent2 =5 x5 = 25 1 exponent5=1x1x1x1x1=1 5 exponent 1 = 5 my sister said the answer is 162 you could try that

Answer: 25, 1, 5

Explanation: you change all the x's to 5
*for x^2 you get 5^2 which is just 5x5 so it's 25.
*for 1^x you get 1^5 which is just 1x1x1x1x1 so it's 1
*for x^1 you get 5^1 which is just 5

Hope this helped!

Plz help with this problem

Answers

Answer:

33 % is the answer.

Step-by-step explanation:

The value provided is 10 and possible out comes of getting a result is 3 as there are 3 grades namely (A,B and C) are mentioned. When converted to 100s, 100/33 gives 33.33% as the answer, when rounding off gives 33.

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Answers

Answer:

-4/5y - 4/5x

Step-by-step explanation:

The fraction ( -4/5 ) will multiply each component in the bracket. That is the (y) and the (x)

So -4/5 × y gives you -4/5y

and -4/5 × x gives you -4/5x

Therefore you have -4/5y - 4/5x

What is the margin of error for a sample statistic for a population with a standard deviation of 6.75?

Answers

Answer:

Step-by-Margin of Error  = 1.96 x  7.75 = 15.19

step explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii)  

iv) therefore Margin of Error  = 1.96  7.75 = 15.19

Answer: 13.5

Step-by-step explanation:

1. Melissa is making some punch. The
punch recipe calls for 4 cups of orange
juice for every 5 cups of lemonade.
How many cups of orange juice should
Melissa use for each cup of lemonade A 1/4 B 4/5 C 1 1/5 D 1 1/4 Answer quick plzzz

Answers

Answer:

11/5 i think sorry if wrong if not i think it will be

4/5

Step-by-step explanation:

hope this helps!

have a good day

Susan has a birdfeeder in the shape of a rectangular prism. It is filled with bird seed to a height of 58 feet as shown. How many cubic feet of bird seed does Susan need to fill the rest of the birdfeeder?

Answers

Answer:

Susan needs 1 23/64 cubic feet of bird seed to fill the rest of the birdfeeder.

Step-by-step explanation:

I did the math.

0.11718 cubic feet of bird seed Susan need to fill the rest of the birdfeeder.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

We have,

It is filled with bird seed to a height of 5/8 feet as shown.

So, Susan need to fill the rest of the birdfeeder

= 5/8 x 1/2 x 3/8

= 15 / 128

= 0.11718 feet

Learn more about Fraction here:

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(4x8) + 6


Easy points ✨✨✨

Answers

Answer:

38

Step-by-step explanation:

You need to follow the rule of bodmas.

Brackets first, then multiplication and division, then addition and subtraction.

(4 x 8) + 6 = 32 + 6 = 38

Answer:

38

Step-by-step explanation:

(4 x 8) + 6

32 + 6

38

Find A, B and ? Please show steps as well

Answers

35+55+a=180
90+x=180
-90. -90
A= 90

who wanna help me with my school work

Answers

21x22=462 hope this helps

Answer:

364 [tex]mi^{2}[/tex]

Step-by-step explanation:

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Answers

Graph D look at the number line and see where 3.7 is
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