what is the value of the fourth term in a geometric sequence for which a1= 30 and are= 1/2?

Answers

Answer 1

Answer:

15/4.

Step-by-step explanation:

4th term = a1 r^3

= 30(1/2)^3

= 30/8

= 15/4.

Answer 2

Answer:

It's 3.75 or 15/4

Step-by-step explanation:

When you put it in proper form, it becomes a4= 30 x (1/2)^3, when computed, it equals 3.75. Thank you.


Related Questions

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

The polygons are similar, but not necessarily drawn to scale. Find the value of x.

Answers

16/12 = (x-1)/6
x-1 = 4/3 . 6
x = 24/3 + 1 = 9

32/24 = (y+1)/21
y+1 = 4/3 . 21
y = 84/3 - 1 = 25

The value of x is given from proportion and x = 9

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the first polygon and second polygon be similar

So , the ratio of their corresponding sides will also be similar

Substituting the values in the equation , we get

( x -1 ) / 6 = 16 / 12   be equation (1)

On simplifying the equation , we get

Multiply by 6 on both sides of the equation , we get

( x - 1 ) = ( 16 x 6 ) / 12

( x - 1 ) = 16 / 2

On simplifying the equation , we get

x - 1 = 8

Adding 1 on both sides of the equation , we get

x = 9

And ,

( y + 1 ) / 21 = 32 / 24   be equation (2)

On simplifying the equation , we get

Multiply by 21 on both sides of the equation , we get

( y + 1 ) = ( 4 x 21 ) / 3

y + 1 = 4 x 7

y + 1 = 28

Subtracting 1 on both sides of the equation , we get

y = 27

Hence , the value of x is 9

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ2

This is it .. I’m confused please help

Answers

Answer:

Its C, think a e and c its angle is about 150 degree

s

what is the value of a b and c?

Answers

Answer:

Thanks for the points G

Step-by-step explanation:

bye

I get a 15% commission on all jewelry sales that I make. If I sold 6,000 worth of jewelry, how much commission will I earn?

Answers

$900 !!!!!!!!!!!!!!!!!

The area of the triangle whose vertices are A(-6, -2), B(-4, -6), B(-2, 5) will be
A. 15 square units
B. 36 square units
C. 24 square units
D. 12 square units

Answers

Answer:

A. 15 square units

Step-by-step explanation:

Because it is the "Correct Answer"

Which expression is equivalent to 4h ÷ 5?

A. 5h/4

B. 4/5h

C. 5/4h

D. 4h/5

Answers

ummmmmmmmmmmmmmmm the answer is D!!

Answer:

D

Step-by-step Explaination:

The answer is d

FIRST CORRECT ANSWER WILL GET BRAINLIEST!!! PLS helppp

prove that 5^7+5^6 is divisible by 6

Answers

First, I solve the equation: 5^7+5^6...

I got 93750

--

The divisibility rules of 6 are:

It must be divisible by 2It must be divisible by 3

So, let's check if 93750 is divisible by 2 first.

It's in even number which automatically means that it is divisible by 2.

No odd numbers are divisible by 2

--

Now let's check if it is divisible by 3 second.

The divisibility rules of 3 are:

The digits added must be divisible by 3

So, 9 + 3 + 7 + 5 + 0 = 17

17 is NOT divisible by 3.

--

Therefore, your equation is not divisible by 6!

Select the fractions that add to 13/3

A. 6/5 + 4/3
B. 6/2 + 4/3
C. 5/3 + 6/5

Answers

A. 6/5 + 4/3 = 38/15
B. 6/2 +4/3= 13/3
C. 5/3 + 6/5= 43/15
Therefore B

How do i solve 7/11 = 18/x+1

Answers

Solve for x by cross multiplying

Exact form: x= 191/7

Decimal form :x=27.28571428

Mixed number form:x=27 2/7

Find the y-intercept of each line defined below and compare their values

Answers

Answer:

They are 8 units apart, and the y-intercept of line A is above the x-axis by 6 units, and line B is below the x-axis by 2 units

Step-by-step explanation:

Remember your y-intercept has an x value of zero, so line B has a y intercept of (0,-2)

now let's find b in the original equation so

y - 8 = -2x - 2 so y = -2x -2 + 8, so y = -2x + 6

So line A has a y-intercept of (0,6)

They are 8 units apart, and the y-intercept of line A is above the x-axis by 6 units, and line B is below the x-axis by 2 units

Luke walks 40 miles in 25 seconds and Maria walks 30 miles in 10 seconds who walks faster?

Answers

Answer:

Thank to Goalscore24 correcting me, its actually Maria walking faster

Because 40 divided by 25 is 1.6

and 30 divided by 10 is 3

So Maria runs 3 miles in 1 second, and Luke runs 1.6 miles in 1 second

So Maria is faster.

ANSWER ONLY IF KNOW!! NO LINKS OR FAKE ANSWERS!!!
BRAINLIEST AND 30 POINTS!!!!!

Answers

Answer:

9 sq units

Step-by-step explanation:

The two triangles shown can be proven congruent through ...
AAS
ASA
SAS
SSS

Answers

Answer:

Step-by-step explanation:

SAS

Answer:

AAS

Step-by-step explanation:

please solve for x. ​

Answers

Answer:

127 degrees

Step-by-step explanation:

All the degrees in a pentagon need to equal 540. Add up the degrees known and then subtract from 540.

good luck!! <3

write 17 1/4 as a decimal

Answers

17.25

17 is a whole number and 1/4 is 0.25 so add them together and you get 17.25

17 1/4 as a decimal is 17.25.

Given is a mixed fraction number 17 1/4 we need to convert it into decimal,

To convert a mixed number like 17 1/4 into a decimal, you can follow these steps:

Step 1: Convert the whole number to a fraction by placing it over 1.

In this case, 17 becomes 17/1.

Step 2: Add the fraction part to the whole number fraction.

Here, you have 17/1 + 1/4.

Step 3: Find a common denominator for the fractions, which is 4 in this case. Multiply the numerator and denominator of the first fraction (17/1) by 4, which gives you 68/4. Leave the second fraction (1/4) as it is.

Step 4: Add the fractions together. 68/4 + 1/4 equals 69/4.

Step 5: Divide the numerator (69) by the denominator (4). 69 ÷ 4 equals 17.25.

Therefore, 17 1/4 as a decimal is 17.25.

Learn more about mixed fraction click;

https://brainly.com/question/29019463

#SPJ6

WILL GIVE BRAINLIEST!
The length of a side of a square is (6x + 6) km. Find the area of the square in terms of the variable x.

Answers

Answer:

36(x + 1)^2 = 0 or 36x^2 + 72x + 36

Step-by-step explanation:

s^2 = area of a square

(6x + 6) (6x + 6)

6x*6x = 36x^2

6x*6 = 36x

6*6x = 36x

6*6 = 36

36x^2 + 36x + 36x + 36

36x^2 + 72x + 36

36(x + 1)^2 = 0

Find the volume of the rectangular prism.

Answers

Answer:

Step-by-step explanation:

The volume of a rectangular prism is

V=xyz, where x,y,z are the three dimensions, in this case

V=10(4.5)6.25

V=281.25 ft^3

Find the values for x for which the expression 2x-3/(x+4)(x-2) is equal to 1/5​

Answers

Answer:

1 and 7

Step-by-step explanation:

(x+4)(x-2) = x²+2x-8

set up proportion:

2x-3/ x²+2x-8 = 1/5

cross-multiply:

5(2x-3) = x²+2x-8

10x-15 = x²+2x-8

Combine Like Terms:

x²-8x+7

Factor:

(x-7)(x-1)

set each factor equal to zero and solve:  x = 1, x = 7

Answer:

[tex] \frac{(2x - 3)}{(x + 4)(x - 2)} = \frac{1}{5} \\ \frac{2x - 3}{x {}^{2} - 2x + 4x - 8} = \frac{1}{5} \\ x {}^{2} - 2x + 4x - 8 = 5(2x - 3) \\ x {}^{2} + 2x - 8 = 10x - 15 \\ x {}^{2} + 2x - 10x = - 15 + 8 \\ x { }^{2} - 8x = - 7 \\ x {}^{2} - 8x + 7 = 0 \\ x {}^{2} - x - 7x + 7 = 0 \\ x(x - 1) + 7(x - 1) \\ x + 7 = 0 \\ x = - 7or \\ x - 1 = 0 \\ x = 1[/tex]

Step-by-step explanation:

x=7 or x=1

Ramon earns $1,725 each month and pays $53.70 on electricity. To the nearest tenth of a percent, what percent of Ramon's earnings are spent on electricity each month?

Answers

Answer:

Step-by-step explanation:

Remark

The formula you use is (Electricity / Total Income ) * 100

The ratio becomes 53.7/1725  * 100%

The ratio is 53.7/1725 * 100 = 0.03113 * 100

The % = 0.03113 * 100 = 3.113

To the closest tenth that is 3.1%

Find m RSU=103° what does UST=

Answers

Answer: UST = 77

Step-by-step explanation:

Angle RSU and angle UST together measure 180. (half of a circle) (or you can say they are a linear pair...either way they would sum to 180) 180-103 = 77

Find the commission.
Earning Commission
Sales Commision Rate Commission
$720
7%?

Answers

Answer:

$50.4

Step-by-step explanation:

The Commission is $50.4 of the sale.

7% of 720 = 50.4

Will give brainliest

Answers

34 degrees (DAB) and 55 degrees (DAC)

Given f(x)=2x^3+kx-9f(x)=2x 3 +kx−9, and the remainder when f(x) is divided by x−2 is 23, then what is the value of k?

Answers

Given:

The function is

[tex]f(x)=2x^3+kx-9[/tex]

The remainder when f(x) is divided by x−2 is 23.

To find:

The value of k.

Solution:

According to the remainder theorem, if a polynomial P(x) is divided by (x-c), then the remainder is P(c).

It is given that, the remainder when f(x) is divided by x−2 is 23. By using remainder theorem, we get

[tex]f(2)=23[/tex]       ...(i)

Put x=2, to find the value of f(2).

[tex]f(2)=2(2)^3+k(2)-9[/tex]

[tex]f(2)=2(8)+2k-9[/tex]

[tex]f(2)=16+2k-9[/tex]

[tex]f(2)=2k+7[/tex]          ...(ii)

Using (i) and (ii), we get

[tex]2k+7=23[/tex]

[tex]2k=23-7[/tex]

[tex]k=\dfrac{16}{2}[/tex]

[tex]k=8[/tex]

Therefore, the value of k is 8.

Rewrite the equation 4x - 5y = 20 into slope-intercept form and graph it. ​

Answers

y= 4 - 4/5x all you have to do is make it go up 4 from 0 and either go down 4 and go right 5 or up 4 and to the left 5... hope this helped!

A home with an area of 2,200 square feet has 660 square feet of wood flooring. What percent of the home's flooring is wood

Answers

Answer:

30%

Step-by-step explanation:

Given data

Area of Home= 2,200 square feet

Area of wood flooring=  660 square feet

The percent of wood flooring in the house can be gotten as

=660/2200*100

=0.3*100

= 30%

Hence the wooden floor occupies 30%.

(THIS IS WORTH A LOT OF POINTS & I’LL GIVE BRAINLIEST) (only do 1 and 2)

Answers

9514 1404 393

Answer:

11.20.24

Step-by-step explanation:

The area is the same, regardless of which side is considered the "base"

  A = bh

__

1. A = 8×14 = 10h

  h = 8×14/10

  h = 11.2

__

2. A = 0.3×0.4 = 0.5h

  h = 0.3×0.4/0.5

  h = 0.24

for each question, decide if it is always true or never true.

Answers

Answer:

Never

Never

Always

Always

Never

Step-by-step explanation:

Substitute (x) for another number, I used (1), I if works then the answer is always and if it doesn't the answer is never. If you are unsure of your answer you can double-check by substituting another number instead.

Answer:

a. Never true

b. Never true

c. True

d. True

e. Never true

Help me ASAP!!!!!

See picture attached

Answers

n=18 is the correct answer to the question

Write an expression that is equivalent to 3 (2x + 6y)

Answers

Answer:

6x+18y

Step-by-step explanation:

Answer:

6x + 18y or 6 (x + 3y)

Step-by-step explanation:

Distribute the 3 or divide the parentheses by 2

Kenneth earns $9 per hour mowing lawns. The total amount earned t equals the amount earned per
hour times the number of hours h. Which equation gives the total amount earned tif Kenneth worksh
hours?

Answers

t=9h or 9h=t

hope this helped :)

T=9h

I probably anwserd Late also I was stumped on this to

Other Questions
Jose deposits S300 into an account that pays simple interest at a rate of 6% per year. How much interest will he be paid in the first 3 years? I will mark you BRAINLIST How was the U.S. reaction to the start of both WWI and WWII the SAME? Write a one page essay of the following question:1. Explain how the three branches of government work in our government and how doesseparation of power provide limited power in our government. This Question please Factorise the following expression : Who is someone in today's time that is fighting for African American Rights or for Women's Rights?Explain how Find m A. 110 B. 70 C. 250 D. 55 "There is no exercise better for the heart than reaching down and lifting people up." John Andrew, Holmes, Jr. Choice A: Explain what the quotation is saying in your own words. Include examples to support your explanation . Or Choice B: State whether you agree or disagree with the quotation . Include specific reasons as evidence to support your opinion . light behaves as a longitudinal wave 9. Jens lawn mowing service charges $28 an hour plus a $15 fee to cover gasfor the mower. Malcolm's lawn service charges $16 an hour, but a $63 fee. Forhow many hours will Jen's service be cheaper than Malcolm's? Figure B is a scaled copy of Figure A. What is the scale factor from Figure A to Figure B? Which of these was NOT a hazard of trade throughout the Roman Empire? A. bad weather B. bandits C. damaged roads D. animals would get hurt and die help help help help help help help ASAP USE ANSWERS GIVEN TO ANSWER!!!!!!!!!!!!!! Find the area of the following rectangle.length = 12 ft.width = 8 ft. Which of the following statements isTRUEbased on the disadvantages of sexual and asexual reproduction?AGametogenesis is the only source of genetic variation for sexual reproductionBCrossing over is the only source of genetic variation for asexual reproductionMutations are the only source of genetic variation for asexual reproductionDMeiosis is the only source of genetic variation for sexual reproduction Write a sentence that contains a list of three cities and their countries. You should be using commas and semicolons here. please help me with this question. thank you. Does anyone know anything about the difference between analog and digital signals?I don't understand it and I have to write an entire essay about it. Any information would help.