Select the formula for the
xth term of the sequence.

screen shot -

Select The Formula For The Xth Term Of The Sequence.screen Shot -

Answers

Answer 1

Answer:

Option (3)

Step-by-step explanation:

Given sequence is,

8, -8, 8,...........

Ratio of the 2nd and 1st term = [tex]\frac{-8}{8}[/tex]

                                                = -1

Ratio of 3rd and 2nd term = [tex]\frac{8}{-8}[/tex]

                                           = -1

Therefore, there is a common ratio 'r' = (-1)

And the sequence is a geometric sequence.

Explicit formula for the nth term of a geometric sequence is given by,

[tex]T_n=a(r)^{n-1}[/tex]

Here, 'a' = First term of the sequence

r = Common ratio

n = nth term

For the given sequence xth term of the sequence will be,

[tex]T_x=8(-1)^{x-1}[/tex]

Option (3) will be the answer.


Related Questions

4. Quinn scores 275 points in 5 min on her favorite
video
game. Delilah scores 675 points in 15 min.
If they continue to play at this level, who do you
predict will score 5000 points faster? Explain.

Answers

Answer:

Quinn

For Quinn:

275 points - - > 5 min

5000 points - - > x min

--------------------------------------

275*x=5*5000-->x=90.9 minutes

For Delilah:

675 points - - > 15 min

5000 points - - > y min

--------------------------------------

675*x=15*5000-->y=111.1 minutes

90.9<111.1, so Quinn will score 5000 points faster

what is 15x-24x, this is very urgent please​

Answers

Answer:

-9x

Step-by-step explanation:

the answer is -9x. hope this helped!

please someone help me with this ASAP with the workout!!

Answers

The answer is 18 cm
Half of 72 is 36
Since YZ is 30, you would subtract 30 from 36 in order to get XY, so you would get 6 for XY
Half of circle W is 24, since it says the diameter of it is 48
So you would subtract XY from half of the diameter of W in order to get WX
It would look like this:
24-6=18

Answer:

18cm

Step-by-step explanation:

6. Alice is covering a foam cube with fabric to make a footstool. Each side of the cube is 20 inches. How
many square inches of fabric will she need?
120 in? of fabric
0 720 in.of fabric
1,200 in? of fabric
2,400 in 2 of fabric

Answers

You're looking for total surface area: area of each side is 20 times 20=400 square inches. There are 6 sides on a cube: 400 square inches times 6 = 2400 square inches

Examine the diagram, where quadrilateral HIJK is inscribed in OC.
H
RD
K
112
1
J
© 2016 StrongMind. Created using GeoGebra.
If mZIJK = 112°, what is mZIHK?

Answers

Answer:

m<IHK = 68°

Step-by-step explanation:

In an inscribed quadrilateral, opposite angels are supplementary. This means that the sum of the opposite angles in am inscribed quadrilateral equals 180°. One is the supplement of the other.

Therefore,

m<IHK = 180 - m<IJK

m<IHK = 180° - 112°

m<IHK = 68°

Chloe asked students in her school band these two questions.

Question 1: How many days per week do you practice your instrument?

Question 2: How many times will our band perform this year?

Use the drop-down menus to explain whether each question is a statistical question.

Question 1

Choose

a statistical question because each student's answer will be

Choose...

Question 2 Choose.

a statistical question because each student's answer will be

Choose the options to the question is is and is not

Answers

Answer:

Question 1: Statistical

Question 2: Not Statistical

Step-by-step explanation:

Given

Question 1 and 2

Required

Are they statistical questions?

A question is said to be statistical if it can be answered through data collection and if there are variances in the collected data.

Using this yardstick, we can say that (1) is a statistical question because the frequency at which the band perform in a week can be determined by gathering data of their past practice.

This can not be said of (2) because (2) has not been done yet, there is no available data to make predictions and lastly, the variance of an unavailable data can not be determined.

What is the volume of the right rectangular prism 

Answers

Answer:

432

Step-by-step explanation:

V=length×width×height

= 8×6=48

=48×9=432

Answer:

[tex]432{mm}^{3} [/tex]

Step-by-step explanation:

[tex]9mm \times 6mm \times 8mm = 432 {mm}^{3} [/tex]

What is the area of the triangle?

Answers

I think it is 30 !!!!!!!!!!!!!

Answer:

30 units²

Step-by-step explanation:

a=1/2 ×length × width

a=1/2 × 12 ×5

a=6×5

a=30units squared

Which expression is equivalent to ? Assume

Answers

[(2x³y⁴)² × 2x]½

(2x³y⁴)½ ×(2x)½

2x³y⁴(2x)½

An unknown number y is 12 more than an unknown number x. The number y is also x less than 17. The equations to find x and y are shown below.

y = x + 12
y = −x + 17

Which of the following statements is a correct step to find x and y? (4 points)

a
Multiply the equations to eliminate y.

b
Write the points where the graphs of the equations intersect the x-axis.

c
Write the points where the graphs of the equations intersect the y-axis.

d
Add the equations to eliminate x.

Answers

Answer:

d because then you can solve for y then use your answer to find x

Answer:

the answer is D even tho you asked a month ago i figured i can still answer

Step-by-step explanation:

The question: " match each drawing with a triangle congruence postulate that can be used to prove the triangles are congruent, if any."



Possible answers


Side angle side (SAS)

Angel side angle (ASA)

Hypotenuse leg (HL)

Not possible

Answers

Answer:

1 : Hypotenuse leg (HL)

2: Angle side angle (ASA)

3: Side angle side (SAS)

Step-by-step explanation:

Given

See attachment for triangles

Required

Determine the congruence postulate

Figure (1):

From the attachment;

[tex]AC = BD[/tex] --- The hypotenuse

[tex]CB = CB[/tex] --- One other leg

Since the hypotenuse and one other leg of both triangles are congruent, then the postulate is: HL

Figure (2):

From the attachment, we have:

[tex]150^\circ = 150^\circ[/tex] --- Angle

[tex]15^\circ = 15^\circ[/tex] ---- Angle

The horizontal line that divides both triangles show that they have a congruent side.

Hence, the postulate is: ASA

Figure (3):

From the attachment, we have:

A pair of single marks (Side)

A pair of double marks (Side)

A pair of equal angles

Hence, the postulate is: SAS

The cost of 50 pounds of beans is $?
Pls help!!

Answers

Answer:

The answer is 40

Step-by-step explanation:

The cost of 50 pounds of beans is 40 dollars.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We can use a ratio to solve the problem;

5 pounds/ 4 dollars  = 50 pounds/ x dollars

Using cross products;

5x = 4 x 50

5x = 200

Divide by 5;

5x/5 = 200/5

x = 40

The cost of 50 pounds of beans is 40 dollars.

Learn more about the unitary method, please visit the link given below;

https://brainly.com/question/23423168

#SPJ2

Find the volume: 8 cm 20 cm 12 cm
Answers: 960 cm 1920 cm 3 960 cm 2 240 cm​

Answers

Answer:

1920 cm

Step-by-step explanation:

You multiply the values together. 8 times 20 times 12 is equal to 1920 cm.

volume = length x height x wide
so , 8cm x 20cm x 12cm = 1920cm cube

Which statement uses words to represent 5+8x3-2

Answers

Answer:

A. Five more than the product of 8 and 3, minus 2

Step-by-step explanation:

A is the correct answer because it correctly displays "5 + 8 x 3 - 2"

Hope this helps. :D

-Luna

16ft by 24ft what is the are?

Answers

I’m assuming you’re talking about area...

16ft x 24ft = 384ft

Tara has 4 and 4 over 5 feet of rope.

Part A: How many 2 over 5 foot pieces can Tara cut from the 4 and 4 over 5 feet of rope? Show your work. (5 points)

Part B: Using the information in Part A, interpret the meaning of the quotient in terms of the two fractions given. (5 points)
I already got part a correct but I need help with part b, I don't understand it cause I'm d u m b pls help

Answers

9514 1404 393

Answer:

  A) 12 pieces

  B) the meaning of the quotient is that Tara got 12 pieces of length 2/5 ft from her 4 4/5 ft rope

Step-by-step explanation:

A) (4 4/5)/(2/5) = (24/5)/(2/5) = 24/2 = 12

  Tara can cut 12 pieces from the rope.

__

B) The quotient is the answer to the question. The meaning of it is that Tara can get 12 pieces from the rope, in answer to the question, "how many pieces can Tara cut?"

It doesn't matter whether the numbers are whole numbers, decimals, fractions, or even irrational numbers. The whole is the sum of the parts, so the number of parts is equal to the size of the whole divided by the size of a part.

_____

Comment on the question

This sort of question seems to appear a lot in modern "common core" math materials. They tell you "x means <such and such>", and then they ask you, "What is the meaning of x?" It seems to be a reading comprehension exercise. Of course, the meaning of x is <such and such>, just as the problem statement tells you.

What is the Effect size of 1 million children effected by divorce

Answers

Answer:

50% I think if I'm not mistaking

please help ASAP 20 points to whoever helps!

Answers

Answer:

A. 232 in²

B. 216 in²

Step-by-step explanation:

A. Box A is a cuboid/rectangular prism.

Surface area of box A = 2(LW + LH + WH)

L = 10 in

W = 2 in

H = 8 in

Surface area = 2(10*2 + 10*8 + 2*8)

= 2(20 + 80 + 16) = 2(116)

Surface area = 232 in²

B. Surface area of B = surface area of cube

Surface area of cube = 6s²

s = 6 in

Surface area = 6(6²)

= 6(36)

= 216 in²

1. Which of the following best approximates the measure of 2?

a. 10
b. 20
c. 30
d. 45​

Answers

Hmmm I’d say d but I’d check with others just in case

Mila invested $9,300 in an account paying an interest rate of 4\tfrac{7}{8}4
8
7

% compounded monthly. Carter invested $9,300 in an account paying an interest rate of 4\tfrac{3}{4}4
4
3

% compounded continuously. After 7 years, how much more money would Mila have in her account than Carter, to the nearest dollar?

Answers

Answer: 105 (rounded to the nearest dollar)

Step-by-step explanation:

It’s correct on delta match

A consumer agency is interested in examining whether there is a difference in two common sealant products used to waterproof residential backyard decks. With cooperation of several builders in the area, they randomly assign 38 newly constructed decks to be treated with Very Clear deck sealant and another 37 newly constructed decks to be treated with Sure Seal deck sealant. After one year of being exposed to similar weather conditions, the decks are rated on a scale of 1 to 100. The mean rating for the decks treated with Very Clear is 89.2 with a standard deviation of 3.1. The mean rating for the decks treated with Sure Seal is 92.4 with a standard deviation of 3.8.

Required:
What represents the 90 percent confidence interval to estimate the difference (Very Clear minus Sure Seal) in mean ratings for the two deck sealants?

Answers

Answer:

(89.2 - 92.4) ± 1.666*√(3.1²/38 + 3.8²/37)

Step-by-step explanation:

Very clear deck :

n1 = 38

x1 = 89.2

s1 = 3.1

Sure seal

n2 = 37

x2 = 92.4

s2 = 3.8

Confidence interval for difference in sample means :

(X1 - X2) ± margin of error

(X1 - X2) ± Tcritical * sqrt(s1²/n1 + s2²/n2))

Using the degree of freedom calculator ; df = 70

Margin of Error : Tcritical * sqrt(s1²/n1 + s2²/n2))

Tcritical at 90% confidence interval, df = 70 = 1.688

Margin of Error = 1.666 * sqrt(3.1²/38 + 3.8²/37)

Confidence interval :

(89.2 - 92.4) ± 1.666*√(3.1²/38 + 3.8²/37)

The height of a triangle is 7 inches greater than the base. The area of the triangle is 225 square inches. Find the length of the base and the height of the triangle.

Answers

Answer:

Height is 25in

Base is 18in

Step-by-step explanation:

225=[x*(x+7)]/2=[x^2+7x]/2

450=x^2+7x

x^2+7x-450=0

(x+25)(x-18)=0

Mr.Nolan paid $36.95 for each adult shirt and $23.95 for each youth shirt he bought.Mr.Nolan bought 2 adult shirts and 5 youth shirts.

Answers

Answer:

Mr.Nolan paid $193.65 in total for the shirts

Step-by-step explanation:

$36.95 (how much one adult shirt costs) x 2 shirts = $73.90

$23.95 (how much one youth shirt costs) x 5 shirts = $119.75

$119.75 (youth shirts total costs) + $73.90 (adult shirts total cost) = $193.65

Mr.Nolan paid $193.65 for the 2 adult shirts and 5 youth shirts.

Hopefully this helps :3 sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

only answering because why not

Step-by-step explanation:

How many pairs of opposite sides are parallel

Answers

One pair is parallel
1 of the sides are parallel

what fraction belongs in the box?

l_i_i_i_i_l_i_i_i_i_l_i_i_i_i_l_i_i_i_i_l_i_i_i_i_l___
0 1 2 3 4
*box

Answers

ANSWER:

Does not have enough information

WHY:

Because it is a bunch of i

HELP! WILL GIVE BRANLIEST!

Answers

Answer:

A cone

Step-by-step explanation:

It volume it 42.411

The Smithtown water company uses warm water meters that measure water usage in gallons. They charge $.12 per gallon of water. If Jack's previous meter reading was 45,621 gallons and his present water reading is 48,555 gallons what is the amount of his water bill?

Answers

Subtract to find the number of gallons used:

48,555 - 45621 = 2,934 gallons.

Multiply gallons used by price per gallon:

2,934 x 0.12 = $352.08

helpppp meeee! pleaseeee!​

Answers

Answer:

9

11

17

25

Step-by-step explanation:

Input the x into the equation

Answer:

2×2+5=9

2×3+5=11

2×6+5=17

2×10+5=25

What's the circumference of a
circle with a diameter of 9 inches?
Use 3.14 for n.

Answers

Answer:

28.26 in

Step-by-step explanation:

Radius = (1/2) diameter

Radius = (1/2)(9)

Radius = 4.5 in

Circumference = 2πr

Circumference = 2(3.14)(4.5)

Circumference = 28.26 in

Surface Area Homework (Help)

Answers

38.2

sorry if it’s wrong
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