What is the sum of the first five terms of a geometric series with ay = 20 and
r= 1/4?

What Is The Sum Of The First Five Terms Of A Geometric Series With Ay = 20 Andr= 1/4?

Answers

Answer 1

Answer:

Step-by-step explanation:

What is the sum of the first five terms of a geometric series with a1 = 20 and r= 1/4?

For a Geometric series, the sum S, is given by  

s=a_1 ((1-r^n)/(1-r))

a=20 ,      n=5,         r=1/4

s=20((1-〖(1/4)〗^5)/(1-1/4))=26 2/3


Related Questions

What describes the slope of this line

Answers

Answer:

Undefined

Step-by-step explanation:

ANSWER :

1: undefined slope

If the plane intersects the cylinder horizontally, the cross section

Answers

Did you finish this question? I feel like you're missing something.

Dan invests £22000 into his bank account.
He receives 2.5% per year simple interest.
How much will Dan have after 3 years?
Give your answer to the nearest penny where appropriate.

Answers

Answer:

£23650

Step-by-step explanation:

FV (or AV) = PV(1+it)

22000(1+.025*3)

22000(1.075)

23650

Solve: 7.45 - 22.1 - 6.8

Answers

-21.45 is the answer to this question.
Solve: 7.45-22.1-6.8
answer= -21.45

A gardener will use up to 240 square feet for planting flowers and vegetables. She wants the area used for vegetables to be at least four times the area used for flowers. Let x denote the area (in square feet) used for flowers. Let y denote the area (in square feet) used for vegetables. Shade the region corresponding to all values of x and y that satisfy these requirements.

Answers

Answer:

60

Step-by-step explanation:

if a rectangle has the area of 21 square units, what is the perimeter

Answers

42 units

What we know:
21 = lw

2l + 2w= perimeter

^distribute out 2

2(lw)=p
2(21)=p
= 42

Una milla terrestre mide 1,609 km y una milla náutica mide 1,852 km. ¿ Cuántos metros más mide la milla náutica ?

Answers

Answer:

The mile is an English unit of length of linear measure equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 metres by international agreement in 1959. With qualifiers, "mile" is also used to describe or translate a wide range of units derived from or roughly equivalent to the Roman mile, such as the nautical mile (now 1.852 km exactly), the Italian mile (roughly 1.852 km), and the Chinese mile (now 500 m exactly). The Romans divided their mile into 5,000 Roman feet but the greater importance of furlongs in pre-modern England meant that the statute mile was made equivalent to 8 furlongs or 5,280 feet in 1593. This form of the mile then spread to the British-colonized nations some of which continue to employ the mile. The US Geological Survey now employs the metre for official purposes but legacy data from its 1927 geodetic datum has meant that a separate US survey mile (6336/3937 km) continues to see some use. While most countries replaced the mile with the kilometre when switching to the International System of Units, the international mile continues to be used in some countries, such as Liberia, the United Kingdom, the United States, and a number of countries with fewer than one million inhabitants, most of which are UK or US territories, or have close historical ties with the UK or US.

Step-by-step explanation:

Can somebody plz help answer these word prob questions plz thanks! (Grade7math( btw :)

WILL MARK BRAINLIEST WHOEVER ANSWER FIRST :DDD

Answers

Answer:

3:1

8:5

Step-by-step explanation:

35 is 28% of what number? Please explain how you got it.

Answers

Answer:

125

Step-by-step explanation:

we have

x*.28= 35

we divide both sides by .28 and get

x= 125

and 28% of 125 = 35

Hope it helps !

Hey there!

[tex]\text{35 is 28\% of what \# ?}[/tex]

[tex]\bold{Equation: y = \% \times \ \# }[/tex]

[tex]\bold{We\ should\ now\ start\ looking\ for\ your\ unknown\ number}[/tex]

[tex]\bold{\# =\dfrac{y}{\%}}[/tex]

[tex]\bold{y=35}[/tex]

[tex]\%=28[/tex]

[tex]\bold{\#=\dfrac{35}{28\%}}[/tex]

[tex]\text{Convert 28\% to decimal}[/tex]

[tex]\bold{28\% =\dfrac{28\%}{100}=0.28}[/tex]

[tex]\bold{New\ equation: \dfrac{35}{0.28}}[/tex]

[tex]\bold{Simplify\ the\ one\ above\ and\ you\ have\ your\ mystery\ number}\uparrow[/tex]

[tex]\boxed{\boxed{\bold{Answer: 125}}}\checkmark[/tex]

Good luck on your assignment and enjoy your day!

~[tex]\frak{Amphitirite1040}[/tex]

How do I find Mean Absolute deviation again? I forgot. URGENT!

Answers

Answer:

To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean

Step-by-step explanation:

PLEASE HELP FAST!!
1. Find x. Show your work.​

Answers

Answer:

X is right there

Step-by-step explanation:

See?

A shoe is having a sale where everything is 35% off. you buy a pair of shoes that has a regular price of $85 what is the sale price of the shoes

Answers

Answer:

$55.25

Step-by-step explanation:

35% × 85 = 29.75

85 - 29.75

= 55.25

Math Please Help Make sure you explain your answer Thanks Have a blessed day!

Answers

Answer: A

Step-by-step explanation:

x=3=x=7=

24−x=20=

Meredith needs $399 to buy a tablet computer. She wants
to earn enough money babysitting to cover at least two-
thirds of the cost.
If she earns $8 an hour babysitting, write an inequality that
can be used to solve for b, the number of hours she must babysit.

Answers

Answer:

233 and 20 hrs

Step-by-step explanation:

The equation for picture D is 13 4/5 = w + 3 4/5. What is the solution? Write the number answer only. Please do not write the variable with it

Answers

Answer:

13 4/5 = 10 + 3 4/5

Step-by-step explanation:

A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If
The tortoise and the hare start out together and after half an hour the hare stops to take a rest. How long does it take the tortoise to catch up

Answers

Answer:

3.145 Hours

Step-by-step explanation:

37÷2=18.5

18.5×.17=3.145

It will take the tortoise to catch up with the hare 109 hours.

Given that,
A giant tortoise travels at 0.17 miles per hour and an arctic hare travels at 37 miles per hour. If The tortoise and the hare start out together and after half an hour the hare stops to take a rest. How long it takes the tortoise to catch up is to be determined.

What is speed?

Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.

Here,
Distance traveled by hare in half hour,
= speed * time
= 37 * 1/2
= 18.5 miles

Time is taken by the tortoise to catch up with the hare,
= distance / speed
= 18.5 / 0.17
≈ 109 hours

Thus, it will take the tortoise to catch up with the hare 109 hours.

Learn more about speed here:
https://brainly.com/question/7359669

#SPJ2


Two snakes race the speed of the first is 24 1/2 inches per minute and the speed of the other is 26 inches per minute how far apart with they be in 3 min? 10 min?

Answers

Answer:

637, 245

Step-by-step explanation:

Speed is the rate of change in the position of an object. The distance between the two snakes after 10 mins is 15 inches.

What is the relation between speed, distance, and Time?

We know that sped, distance, and time all are in a relationship to each other. this relationship can be given as,

[tex]\rm{Speed = \dfrac{Distance}{Time}[/tex]

Given to us

Two snakes race The speed of the first is 24 1/2 inches per minute The speed of the other is 26 inches per minute

What is the distance between them after 3 mins?

The relative speed between them, as they are moving in the same direction, therefore,

Relative speed = (26-24.5) = 1.5 inches per minute

[tex]\text{Distance between them after 3 mins}= \rm speed \times \rm time[/tex]

                                                        [tex]= 1.5 \times 3\ mins\\= 4.5\ inches[/tex]

Thus, the distance between the two snakes after 3 mins is 4.5 inches.

What is the distance between them after 10 mins?

The relative speed between them, as they are moving in the same direction, therefore,

Relative speed = (26-24.5) = 1.5 inches per minute

[tex]\text{Distance between them after 10 mins}= \rm speed \times \rm time[/tex]

                                                          [tex]= 1.5 \times 10\ mins\\= 15\ inches[/tex]

Thus, the distance between the two snakes after 10 mins is 15 inches.

Learn more about Speed, distance, and Time:

https://brainly.com/question/15100898

no clue how to answer this

Answers

Answer:

s=4.75

Step-by-step explanation:

Just substitute the given variable values into the original equation

s=10•½+½•-2•½²

s=5+-1•¼

s=5+-¼

s=-4.75

What is the complete factorization of x^2 + 2x − 63?

A. (x + 21)(x − 3)
B. (x − 9)(x + 7)
C. (x + 9)(x − 7)
D. (x − 21)(x + 3)

Answers

Answer:

C. (x+9)(x-7)

Step-by-step explanation:

(x*x)=x^2

(9*x)=9x

(-7*x)= -7x

(9*-7)= -63

x^2+9x-7x-63 = x^2+2x-63

Help ASAP please!!!!!

Answers

Answer:

f=      2x+3

         x

Step-by-step explanation:

Let's solve for f.

fx=2x+3

Step 1: Divide both sides by x.

fx

x

=

2x+3

x

f=

2x+3

x

Factor completely: X^3-5x^2-9x+45

Answers

Answer:

x^2(3x-5)-9(x_5)

I think that is the answer and hope you will benefit from it

Answer:

(x-5) (x^2-9)

Hope it helps....

find the area of the composite figure

Answers

You split it into a triangle and a rectangle. The rectangle’s area is 12x16=192. For the triangle, you have to find the length of the b side. You already know a and c so 12^2 + b^2=15.5^2. Solve it algebraically to get b=9. So the triangle has an area of (12x9)/2=54. So the total area is 192+54=246cm^2.

Solve each equation mentally: J + 7 = 13

Answers

Answer:

j=6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

13-7=6

I need help please I’m going to give brainliest if u do help me thank you

Answers

Answer:

A orange is $0.39

Step-by-step explanation:

$1.56 divide that by 4

What is equivalent to the expression 7x - 14

Answers

7(x - 2) is equivalent to the expression

Answer:

7x -14

Step-by-step explanation:

god

find the slope from the points (5,-1) & (8,-6)

Answers

Answer:

-5/3

Step-by-step explanation:

change in y over change in x



When a dilation has a scale factor greater than one, the dilation is an enlargement

Answers

Answer:

Step-by-step explanation: true

can someone please help me, ill give brainliest plus points!

Answers

Answer:

9 is the correct answer all the best

Step-by-step explanation:

(x + 0.5)/6 = 19/12

2(x + 0.5) = 19 (multiply 12 on both sides)

x + 0.5 = 9.5 (divide 2 on both sides)

x = 9 (subtract 0.5 on both sides)

The answer is 9.

AREA OF CIRCLE !! PLEASE HELP !! WILL GIVE BRAINLIEST !!

Answers

Answer:

A circle doesnt have a area its 0 duhhh

Step-by-step explanation:

Find the missing x value for for question 14

Answers

Answer:

x=12 but who knows maybe

Step-by-step explanation:

if we are trying to say those lines are equal length than surely the equations must be equal value otherwise they aren't equal so we can probably set them equal to each other and solve for x right? 2x+6=3x-6 subtract 6. 2x=3x-12. subtract 3x. -1x=-12. divide by -1 so x=12.

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