Given the first term and the common ratio of a geometric
sequence find the first five terms and the explicit formula. a1
= 0.8, r= −5

Answers

Answer 1

Answer:

nth term = 0.8 * -5^(n - 1)

First five terms are: 0.8, -4,

20, -100, 500

Step-by-step explanation:

First term, a1 = 0.8

Common ratio, r = -5

a1 = 0.8

Second term = ar

= 0.8 * -5

= -4

Third term = ar²

= 0.8 * -5²

= 0.8 * 25

= 20

Fourth term = ar³

= 0.8 * -5³

= 0.8 * -125

= -100

Fifth term = ar⁴

= 0.8 * -5⁴

= 0.8 * 625

= 500

First five terms are: 0.8, -4,

20, -100, 500

nth term = ar^(n - 1)

= 0.8 * -5^(n - 1)

nth term = 0.8 * -5^(n - 1)


Related Questions

How do I find measures to interior angles

Answers

Answer:

Just add all the angles together, and see if they add up to 180 degrees

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

The square has a side length of 10 ft and the circle inside the square has a diameter of 10 ft find the approximate area of the shaded region use 3.14 as an estimation for

Answers

Answer:

[tex]Area = 21.5ft^2[/tex]

Step-by-step explanation:

See attachment

Given

Square:

[tex]Length = 10ft[/tex]

Circle:

[tex]Diameter = 10ft[/tex]

[tex]\pi = 3.14[/tex]

Required: Calculate the area of the shaded region

First, calculate the area of the square:

[tex]A_1 = Length^2[/tex]

[tex]A_1 = (10ft)^2[/tex]

[tex]A_1 = 100ft^2[/tex]

Next, the area of the circle.

[tex]A_2 =\pi * \frac{d^2}{4}[/tex]

[tex]A_2 =3.14 * \frac{10^2}{4}[/tex]

[tex]A_2 =3.14 * \frac{100}{4}[/tex]

[tex]A_2 =3.14 * 25[/tex]

[tex]A_2 =78.5ft^2[/tex]

The shaded region has the following area

[tex]Area = A_1 - A_2[/tex]

i.e. the difference between the area of the square and  the area of the circle

[tex]Area = 100ft^2 - 78.5ft^2[/tex]

[tex]Area = 21.5ft^2[/tex]

Help me please


Please help

Answers

Answer:

5ft

Step-by-step explanation:

15÷3=5

Shrings dining room table is round and has a radius of 4.5 feet. What is the tabletops area? Plz

Answers

Answer:

The answer should be 63.63! you might need to round it to 63.6 or 64

Step-by-step explanation:

due tomorrow i need help

Answers

Two figures are similar if they have the same shape but not necessarily the same size. The figures below are NOT congruent.

URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!

Answers

Answer: 6.32 (rounded)

Step-by-step explanation:

You need to use the pythagorean theorem. 2^2+6^2=c^2.

4+36=40

square root of 40 is 6.324 when rounded


find the coefficient

Answers

9514 1404 393

Answer:

  1/3

Step-by-step explanation:

The coefficient of expansion can be found by computing the ratio of any (non-zero) image coordinate to its corresponding pre-image coordinate.

  Q'x/Qx = 1/3

The coefficient of dilation is 1/3.

Z-31=16??? I just got into the Z section in algebra and my teacher gave us a paper with no explanation plz help ty!

Answers

Answer:z=47

Step-by-step explanation:

You're doing this because if you have z-31=16 you have to + 31 to 16 which would give you 47 then that would be a one step equation

z-31=16

you would make a line between the equal sign so it is organized then plus 31 to sixteen then that would get you to 47

round 2.85 to the nearest hunderdth

Answers

Answer 2.85

On rounding to nearest hundredths, we get than 2.85 as at thousandths place, there is 9 which is greater than 5, so 1 is added to the hundredth value.

help me pls with these 2 i will give brainliest for correct answer

Answers

Answer:

C

Step-by-step explanation:

(0,4) is the intercept

Answers:
21. A
22. -8

Why? Slope intercept form is y=mx+b
M=slope
B= y intercept
In question 21 there is no number representing b so it is 0
In question 22 it is out of order but because -8 is on the x it is the slope

Hope this helps

can someone help me plz​

Answers

Answer:

No thanks I don't feel like it

Step-by-step explanation:

I don't feel like it

A box has a height of 5 cm a Length
os 6 cm and a width of 2 cm
What is its volumes​

Answers

The box has a volume of 5x6x2=60cm^3

What is the inverse function of f(x) = x/x-2?


Answers

The answer is x=2y/y-1

Explanation: y(x-2)=x
X•y-x=2y
X(y-1)=2y
So, x=2y/y-1

12 NEED HELP ASAP WILL GIVE BRAINLY

Answers

Answer:

x = 4

8(4) - 2 = 30

15(4) = 60

All triangles equal 180 degrees and there is already a right angle. 60 plus 0 is 90, and 90 plus 90 (or 90 times 2) is 180

60 + 30 = 90

90 + 90 = 180

Step-by-step explanation:

The sum of the measures of the angles of the triangle is 180 degrees. What is the value of each angle in the triangle if angle one is (3x + 51), angle two is (x) and angle three is (x + 19)

Answers

Answer:

the answer is 180/90 = 2

Step-by-step explanation:

Tyler orders a meal that costs $15.
A. if the tax rate is 6.6% how much will the sales tax in be on Tyler's meal?
B. Tyler also wants to leave a 20% tip for the server. How much do you think he should pay in all explain your reasoning.

Answers

Answer:

A) 99 cents

B) 3 dollars

Step-by-step explanation:

15*0.066=$0.99

15*0.2=$3

(I didn't use post-tax total because most people tip on the pre-tax subtotal, since that is the service charge and they're tipping the service, not the tax).

Carina is painting the outside of a square pyramid. The net for the pyramid is shown below. 3 cm 4 cm Enter the total surface area, in square centimeters, of the pyran that Carina will paint.​

Answers

My Alzheimer’s medicine running out the answer is

Joanna plans to completely cover a large soup can, including the top and bottom, with black paper. The diameter of the can is 6 in. and the height is 5 in. Which is a reasonable estimate for the number of square inches of paper that Joanna will need to cover the can? Select one: O 151 square inches
O 141 square inches
O 101 square inches
O 1,319 square inches​

Answers

Answer:

141 square incges

Step-by-step explanation:

Answer:

The answer is 141 sq inch.

Am smort :D


The diameter of a cone is 4 centimeters and has a height of 6 centimeters. How much
greater is the volume of a cylinder that has the same diameter and same height?

Answers

Hopefully this helps

Annual sales for a company are $155,000 and increases at a rate if 8% per year for 9 years

Answers

8% of 155,000 = 12,400
155,000 + 12,400 = 167,400

- this is the rate for one year, find 8% of 167,400 and use addition to add your answer to 167,400 find the cost of the 2nd year, keep doing this until you have reached 9 years

The value of annual sales in 9 years is  $309,845.72.

What is the value of annual sales in 9 years?

In order to determine the annual sales of the company in 9 years, the formula to be used is:

FV = P (1 + r)^n

Where:

FV = Future value P = Present value R = interest rate N = number of years

$155,000 x (1.08)^9 = $309,845.72

To learn more about future value, please check: https://brainly.com/question/18760477

True or false...
When using the substitution method, one of the equations must say "x=" or "y=".

Answers

Answer:

true

Step-by-step explanation:

True?
I’m sorry if I’m wrong

Triangle P N M is shown. The length of P N is 7, the length of N M is 8, and the length of M P is 11.
Law of cosines: a2 = b2 + c2 – 2bccos(A)

Which equation correctly applies the law of cosines to solve for an unknown angle measure?

72 = 82 + 112 – 2(8)(11)cos(N)
82 = 72 + 112 – 2(7)(11)cos(M)
72 = 82 + 112 – 2(8)(11)cos(P)
82 = 72 + 112 – 2(7)(11)cos(P)

Answers

Answer:

8^2 = 7^2 + 11^2 – 2(7)(11)cos(P)

D.

Step-by-step explanation:

Edge 2021

The equation correctly applies the law of cosines to solve for an unknown angle measure is equation D.

What is a Triangle?

A triangle is a polygon with three sides, three vertices, and three angles.

The length of P N is 7,

The length of N M is 8, and

The length of M P is 11.

The law of cosines is used to determine the missing sides and angles if two sides and an angle are given or three sides are given respectively.

The equation that correctly applies should have the two sides and the cosine of the included angle.

The correct equation is 8² = 7² + 11² – 2(7)(11)cos(P)

To know more about Triangle

https://brainly.com/question/2773823

#SPJ5

DUE ASAP PLZ HELP (brainliest if you get it right)

Part A
PERSEVERE Mei got scores of 76, 80, and 78 on her last three history exams. Write an inequality to determine the score, x, she needs on the next exam so that her average is at least 82.

Part B
Fill in the blanks to complete the sentence.
Solve the inequality.
Mei needs a score of at least ____ on the next exam.

Answers

here's the right answer!

A)  76 + 80 + 78 + x = 82 times 4

234 + x = 328

x = 94

B) Mei needs a score of at least 94 on the next exam.

hope you have a good day


Select the three expressions that are equivalent to

-2(4 - 3x) + (5x - 2).


A. 2x - 10

B. 11x - 10

C.-8 + 11x - 2

D. -8 - 11x - 2

E. -8 + 6x + 5x - 2

F. -8 - 3x + 5x - 2

What mathematical process did you use to
simplifying the expression above?

Answers

Answer:

B

Step-by-step explanation:

-2(4 - 3x) + (5x - 2)=

-8+6x+5x-2=11x-10

when there is a number in front of () you multiple every number that is inside the ()

El 10% de que numero es 32

Answers

3.2 is 10 % of 32. Give me a like if I helped please

brainliest for the fastest answer!!!!!!!!
its super easy

Answers

Answer:

The answer is B number os shoes ihope it help

Can someone please help me? I'm stuck. P.S. correct answer will get brainliest.

Answers

Answer:

Statement               | Reason

1. AB = CB               | Definition of isosceles triangle

2. AD = CD              | Definition of median

3. BD = BD               | Reflexive property

4. ΔADB ≅ ΔCDB    | SSS (Side-side-side)

Answer:

Solution given:

1.AB=BC. definition of isosceles ∆

2.AD=DC. definition of median

3.BD=BD reflexive

4.∆ADB=∆ CDB S.S.S.axiom

I need help with this question

Answers

the answer is 6 to the power of 4
6^4

when divining two exponents with the same base, you subtract the bottom from the top exponent : 7-3 = 4

I need help figuring out the answer. please help

Answers

Answer:

it' b

Step-by-step explanation:

450 multiply by 5 = 2250

375 multiply by 4 = 1,500

1500+2250 ,=3750

Can someone pls pls pls pls pls pls answer these question

Answers

Step-by-step explanation:

if you replace n = 1

(2)(7)^(1-1)

= (2)(7⁰)

= 2×1

= 2

if n = 2

(2)(7)^(2-1)

= (2)(7)^(1)

= 2×7

= 14

choice 1

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