Use the given information to determine if the geometric series converges or
diverges. If it converges, find the sum.
ai = 0.75; r = 5
a) The series converges to 3.75.
b) The series converges to 0.15.
c) The series diverges. There is no sum.
d) The series converges to 20.

Answers

Answer 1

Answer:

c) The series diverges. There is no sum.

Step-by-step explanation:

A geometric series is a series of the form:

\(S = \Sigma_{i=0}^{n} a\cdot r^{i}\), \(\forall i \in \mathbb{N}_{O}\)

Where:

\(a\) - First term of the series, dimensionless.

\(r\) - Common ratio, dimensionless.

A geometric series converges only if \(|r| < 1\). As \(r > 1\), the geometric series diverges. Hence, the right answer is C.


Related Questions

Connie can clean her house in 3.5 hours. If Alvaro helps her, together they can clean the house in 1 hour and 40 minutes. How long would it take Alvaro to clean the house by himself?

Answers

Answer:

1 hour and 50 minutes

Step-by-step explanation:

Time Connie takes to clean the house: 210 minutes

Time takes for both of them at the same time: 100 minutes.
210 - 100 = 110 minutes

Therefore, Alvaro takes one hour and 50 minutes to clean the house by himself.

Answer:Alvaro can clean the house alone in approximately 3.89 hours.

Step-by-step explanation:

If Connie can clean her house in 3.5 hours, then her rate of work is 1/3.5 of the house per hour. Together, Connie and Alvaro can clean the house in 1 hour and 40 minutes, or 1.67 hours.

To find how long it would take Alvaro to clean the house alone, we can use the formula:

combined rate of work = sum of individual rates of work

So, (1/3.5 + 1/a) * 5/3 = 1, where "a" is the time it takes Alvaro to clean the house alone.

Simplifying the equation, we get 1/a = 9/35, which means that Alvaro can clean the house alone in approximately 3.89 hours (or 3 hours and 53 minutes).

simplify the expression: 6(x+y)+y−(x+3)

Answers

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{ 6(x+y)+y-(x+3)} \end{gathered}$}\)

Put the parentheses using: - (a + b)(= -a -b).

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{-\left(x+3\right)=-x-3 } \end{gathered}$}\)

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{=6\left(x+y\right)+y-x-3 } \end{gathered}$}\)

Expand 6(x+y): 6x+6y.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{=6x+6y+y-x-3 } \end{gathered}$}\)

Add like elements 6y+y=7y

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{=6x+7y-x-3 } \end{gathered}$}\)

Group Like Terms

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{=6x-x+7y-3 } \end{gathered}$}\)

Add like elements 6x-x=5x.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{\red{=5x+7y-3 \ \ \Rightarrow \ \ \ Answers }} \end{gathered}$}\)

Estimate the product of 0.04 × 12.

Answers

The answer is 0.48 hope that helps
Your answer is 0.48

Jim took a loan of R30 000.00 for 18 months at a simple interest rate of 12.5% per year. Determine the amount that Jim
will pay in 18 months.​

Answers

Answer:

R35625

Step-by-step explanation:

(R30,000×.125×18/12)+R30000

=R35625

a machine is used to fill bags with a popular brand of trail mix. the machine is calibrated so the distribution of the weights of the bags of trail mix is normal, with mean 240 grams and standard deviation 3 grams. of the following, which is the least weight of a bag in the top 5 percent of the distribution? responses

Answers

The top five percent of the distribution's lowest weight as calculated from the given data  for a bag is 246.

Average population = 240

Standard deviation for the population; 3

Z-score can be calculated as ,

z = (x' - μ)/σ

Now, in order to determine which of the top 5 values in the distribution has the least weight, we will use the significance threshold of 1 - 0.05/2 = 0.025.

Z-score is 1.96 at significance level 0.025.

Thus;

1.96 = (x' - 240)/3

3 × 1.96 = x' - 240

x' = 240 + 5.88

x' = 245.88

Getting close to a whole number results ,

x' = 246

The two z-score tables are as follows:

Positive Z Score Table: The observed value is greater than the average of all values.

An observed value that is below the mean of all values is shown by a negative Z score table.

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Is the equation y = 7.9x a linear or nonlinear function? Explain.​

Answers

Answer:

Linear

Step-by-step explanation:

If its linear it fits into the y=mx+b, and this on does so its linear

Gary used 7 yards. His brother used four times as much fabric. How much fabric did Gary's brother use?​

Answers

Answer: 28 yards

You just have to multiple the 7 by the 4. :)

Which runs faster: a cheetah that can run 60 feet in 6 seconds or a gazelle that can run 100 feet in 10 seconds?

They run at the same speed.
A gazelle runs faster.
A cheetah runs faster.

Answers

Answer:

They run at the same speed

Step-by-step explanation:

First, you have to find a way seeing how fast both animals run in the same amount of time. You can find out how fast they both run in one second.

60 feet in 6 seconds is how many feet in one second? Well, you can do 60/6 (60 divided by 6) and you will see that in one second, the cheetah can run 10 feet

100 feet in 10 seconds is how many feet in one second? Same thing, you can do 100/10 (100 divided by 10) and you will see that the gazelle can run 10 feet in one second.

Finally, you compare the two answers from the two animals. For the cheetah, we learned that it can run 10 feet in one second, and for the gazelle, we learned that it can run 10 feet in one second. So, we know that they run at the same speed.

Thank you! Please let me know if this was helpful!

Answer:

Cheeta's speed = 10 feet per second

Gazelle's speed = 10 feet per second

Hence, They run at the same speed.

Step-by-step explanation:

Determining the Cheeta's speed:

Covered distance = 60 feet

Time taken = 6 seconds

Speed = Covered distance / Time taken

           = 60 / 6

           = 10 feet per second

Therefore, Cheeta's speed is 10 feet per second.

Determining the Gazelle's speed:

Covered distance = 100 feet

Time taken = 10 seconds

Speed = Covered distance / Time taken

           = 100 / 10

           = 10 feet per second

Therefore, Gazelle's speed is 10 feet per second.

Conclusion:

Cheeta's speed = 10 feet per second

Gazelle's speed = 10 feet per second

Hence, They run at the same speed.

The diagram shows a triangle.
31° / 6x / x+16°

What is the value of x?

Answers

Step-by-step explanation:

31 + 6x + x + 16 = 180

7x + 47 = 180

7x = 180 - 47

x = 133/7

x = 19

Please help!!!- Find the measure of the angle in bold.
Need help to figure out to solve this.

Please help!!!- Find the measure of the angle in bold.Need help to figure out to solve this.

Answers

Answer:

11x-6+(19x+6)=180°

11x+19x-6+6=180°

30x=180

x=180/30

x=6

it means that

19x+6=19*6+6=114+6=120°

in an equilateral triangle the first side is x+1, second side is 2x+4, the third side is 3x+y, find the value of x and y

Answers

The value of x is -3 and y is 7 for equilateral triangle having x+1, 2x+4 and 3x+y sides.

We can use the fact that an equilateral triangle has equal lengths on each of its three sides to determine the values of x and y.

Given:

First side=x+y

second side= 2x+4

third side=3x+y

An equilateral triangle has three equal sides, hence the following equations can be constructed:

x + 1 = 2x + 4

2x + 4 = 3x + y

Let's tackle each of these equations separately:

x + 1 = 2x + 4

We will subtract x from both sides and subtract 4 from both sides in order to solve this equation:

x + 1 - x = 2x + 4 - x

1 = x + 4

By taking 4 away from both sides, we arrive at:

1 - 4 = x + 4 - 4 , -3 = x

Therefore, x has been determined to be -3.

Now, substitute the value of x in the second equation:

2x + 4 = 3x + y

2(-3) + 4 = 3(-3) + y

-6 + 4 = -9 + y

-2 = -9 + y

y = -2 + 9

y = 7

So, we determined that y has a value of 7.

As a result, the values of x and y are, respectively, x=-3 and y=7

To know more about Equilateral Triangle

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Answer:

Step-by-step explanation:

In an equilateral triangle all sides are equal.

So each of these sides (and their equations are equal to each other.)

To find x - set the first two (as they only involve x) equal to each other and solve.

x + 1 = 2x + 4

x -x + 1 = 2x - x + 4

1 = x + 4

1- 4 = x + 4 - 4

-3 = x

Then substitute -3 for x in the last equation to find y, also setting it equal to one of the other equations.

3(x) + y = x + 1

3(-3) + y = -3 + 1

-9 + y = -2

-9 + 9 + y = -2 + 9

y = 7

so x = -3 and y equal 7

Given: a || b

Find the missing angle measures in the diagram. Explain how you find each angle measure. (please explain how you got the answer)

Given: a || bFind the missing angle measures in the diagram. Explain how you find each angle measure.

Answers

The angle measure explained in the solution.

Given that, a || b, we need to find the missing angles,

∠1 = 42° [vertically opposite angles]

∠3 = 62° [vertically opposite angles]

∠2 = 180°-(∠1+62°) [angle in a straight line]

∠2 = 76°

∠4 = ∠2 [vertically opposite angle]

∠4 = 76°

∠4 = ∠9 = 76° [alternate angles]

∠9 = ∠12 = 76° [vertically opposite angle]

∠3 = ∠ 6 = 62° [alternate angles]

∠ 6 = ∠7 = 62° [vertically opposite angle]

∠3 + ∠5 = 180° [consecutive angles]

∠5 = 118°

∠5 = ∠8 = 118° [vertically opposite angle]

∠4 + ∠10 = 180° [consecutive angles]

∠10 = 104°

∠10 = ∠11 [vertically opposite angle]

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what is 13= d divided by 6

Answers

Answer:

78

Step-by-step explanation:

You need to do inverse operations

13 x 6 = 78

D = 78

78 divided by 6 = 13

:)

Which shape is represented by the net below?

Which shape is represented by the net below?

Answers

The shape represented by the net, which consists of five plane surfaces is a triangular prism. The correct option ii therefore;

Triangular prism

What is a net?

A net is obtained by unfolding a three dimensional shape. Three dimensional shapes can be made by folding a net after drawing the model.

The shape in the figure consists of five faces, which includes;

Two triangular faces Three rectangular faces

The figure is in the shape of a triangular prism

A prism is a solid consisting of plane surfaces on its sides. The faces of the prism (top and bottom faces), which are identical, defines the name of the prism.

A triangular prism is a prism that has a top and bottom face that are both shaped as identical triangles. The top and bottom faces of the triangular prism are joined together by rectangular side faces that have a width, equivalent to the side length of the triangle.

The shape of a triangular prism is in the shape of a tent, with the entrances shaped as a triangle.

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what is the answer to the equation of x^2 + 2x

Answers

X^2 + 2x
Can also be written to be simplified as
X(x+2)
But this cannot be solved as this only variables

need help i dont understand

need help i dont understand

Answers

Answer:

Step-by-step explanation:

it would be "c" because the question asks for the number that makes the inequality true

4x≤ x+3

the graph in c is saying that every number that is 1 or less than 1 makes the inequality true. so lets take -7 as an example

4 x -7=-28

-28+3=-25

-25 is greater than -28 so the inequality is true. the reason why graph d doesnt work is because if we plug in 2 into the equation, then 4x =8 and x+3=5

5 is not greater than 8 so it doesnt work

4c=3 solve for c please

Answers

Step-by-step explanation:

Given equation is:-

4c=3

Dividing both sides by 4, we get

4c/4=3/4

By doing simply, we get

c=¾

Hence, the value of c will be ¾.

Corinna rowed 4/5 mile on a rowing machine in 1/6 hour. What is her rowing rate in miles per hour

Answers

Answer: 8.20 miles I believe

Michael's mom loves Bright Scents candles. A 4-inch candle will burn for 8 hours. Michael bought his mom a 10-inch candle for Mother's Day.
If Bright Scents candles all burn at the same rate, how many hours will the 10-inch candle burn?

Answers

Answer:

Step-by-step explanation:

A bag contains 5 red and 3 bluearble. Two marbles are drawn simultaneously from the bag. DETERMINE the probability that at least one is red. ​

Answers

Answer:

5/8

Step-by-step explanation:

Find the equation for the line shown

Find the equation for the line shown

Answers

Answer:

y = 1/2x

Step-by-step explanation:

Slope: 1/2

y = 1/2x

Please help me to do this i really need it.
First correct Answer gets Brainliest.

Please help me to do this i really need it.First correct Answer gets Brainliest.

Answers

Answer:

Step-by-step explanation:

-3≤ x = graph 6

-3 > x = graph 3

x≥ 3 = graph 2

x ≤ 3 = graph 4

3 > x = graph 1

x > 3 = graph 5

the closed circles means greater/less than or equal to

the open circle means greater/less than

the direction of the arrow tells you if the number is greater than x or less than x

Which number sentence states that x is at most 50?
A. x < 50
B. * < 50
C. x = 50
D. x > 50
E. x > 50

Answers

C. X =50 because that is the only one that has x= 50

Determine the measure of the third angle in a triangle when the other two angles total 165 degrees.

Answers

Answer:

15

Step-by-step explanation:

180-15

Hello!

the sum of the angles in the triangle = 180°

so the 3rd angle = 180° - 165° = 15°

The answer is 15°

An astronaut on the moon throws a baseball upward. The astronaut is 6 ft, 6 in tall, and the initial velocity of the ball is 30 ft per sec. The height s of the ball in feet isgiven by the equation s= -2.7t^2 + 30t + 6.5, where t is the number of seconds after the ball was thrown. Complete parts a and b.a. After how many seconds is the ball 18 ft above the moon's surface?After ____ seconds the ball will be 18 ft above the moon's surface.(Round to the nearest hundredth as needed. Use a comma to separate answers as needed.)

Answers

\(s=-2.7t^2+30t+6.5\)

In order to find when the ball will be 18 ft above the moon's surface, we need to equal the expression to 18

\(18=-2.7t^2+30t+6.5\)

then, solve the associated quadratic expression

\(\begin{gathered} 0=-2.7t^2+30t+6.5-18 \\ 0=-2.7t^2+30-11.5 \\ using\text{ }the\text{ }quadratic\text{ }formula \\ x=\frac{-30\pm\sqrt{(30)^2-4\ast(-2.7)\ast(-11.5)}}{2\ast(-2.7)} \\ x_1\cong0.40 \\ x_2\cong10.72 \end{gathered}\)

answer:

after 0.40 seconds the ball will be 18 ft above the surface

Write these fractions as percentage 2/3

Answers

1/3= 33.3%
Therefore 2/3 is 66.6%

Answer: 66%

Step-by-step explanation: To convert a fraction to a percentage, divide the top number by the bottom number. For example, \(\frac{1}{4}\) is 25% because if divide them, (1÷4=0.25) then we get 25%. So, for this problem, we solve 2÷3, which equals 0.66, or 66%.

hope this helps!

please give brainliest!

simplify the following expression and write in standard form: 3 x (6y - 4y + 5x) PLEASE HELP

Answers

Answer: 15x^2+6xy

Step-by-step explanation: 3x(6y−4y+5x)

(3x)(6y+−4y+5x)

(3x)(6y)+(3x)(−4y)+(3x)(5x)

18xy−12xy+15x^2

15x^2+6xy

Find the surface area and volume of a sphere.
A = 4 r²
V = 4/3r³
A sphere has a radius of 4 inches.
Area (to the nearest tenth) =
Volume (to the nearest tenth) =
sq. in.
cu. in.

Answers

\(\textit{surface area of a sphere}\\\\ SA=4\pi r^2 ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=4 \end{cases}\implies SA=4\pi (4)^2\implies SA\approx 201.1~in^2 \\\\[-0.35em] ~\dotfill\\\\ \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=4 \end{cases}\implies V=\cfrac{4\pi (4)^3}{3}\implies V\approx 268.1~in^3\)

Kathryn invests $8,327 in a savings account with a
fixed annual interest rate compounded continuously. After
10 years, the balance reaches $18,532.08. What is the
interest rate of the account?

Answers

Answer:

Below

Step-by-step explanation:

The equation to use for CONTINUOUS compounding is :

FV = PV e^(it)

18532.08 = 8327 * e^( i*10)        where i is the interest in decimal form

18532.08/8327  = e^(10i)

2.225541 = e^(10i)             now take natural log  (ln) of both sides to get

.8000 = 10i

i = .08     or 8% interest

There were 80 girls and 120 boys in the cafeteria for lunch. Of these students, 10 girls and
18 boys named the Dallas Cowboys as their favorite football team. What percentage of the
girls and boys named the Dallas Cowboys as their favorite football team?
A 14%
B 7%
C 28%
D 1.4 %

Answers

Answer:

the answer is 15% but there's none of the above

hope this helps

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