Mathematics College

What is the geometric series
1,-5,25,-125.......n=8 please this is 30 points

What Is The Geometric Series1,-5,25,-125.......n=8 Please This Is 30 Points

Answers

Answer 1

Answer:

-5

Step-by-step explanation:

b1 = +1

b2= -5

b3 = +25

b4 = -125

q = -5  (if u times it -5, u will have every second + or -)

q = [tex]\frac{b2}{b1}[/tex] = -5:1 = -5

Answer 2

9514 1404 393

Answer:

  the sum of 8 terms of the series is -65104.

Step-by-step explanation:

The first term is 1.

The common ratio is (-5)/(1) = -5.

The sum of 8 terms is ...

  S8 = a1(r^8 -1)/(r -1)

  S8 = 1((-5)^8 -1)/((-5) -1) = 390624/-6 = -65104

The sum of 8 terms is -65104.

__

The 8th term is 1·(-5)^(8-1) = -78,125.

Related Questions

helppppppppppppppppppppppppppppppppppppp

Answers

Answer:

(m÷3)+2in

Step-by-step explanation:

(m÷3) represents the division of Myron's height and 3

+2 is the extra 2 inches

Hope this helps! :)

Under his cell phone plan, Alonso pays a flat cost of $53.50 per month and $3 per gigabyte. He wants to keep his bill at $59.80 per month. Write and solve an equation which can be used to determine gg, the number of gigabytes of data Alonso can use while staying within his budget.

Answers

Answer:

Alonso can use 2.1 gigabytes while staying within his budget.

Step-by-step explanation:

53.50 + 3x = 59.80

3x = 59.80 - 53.50

3x = 6.3

x = 6.3 ÷ 3

x = 2.1

Alonso can use 2.1 gigabytes while staying within his budget.

HELPP
subtract a from 9, double the result, then add 10 to what you have

Answers

Answer:

Step-by-step explanation:

9 - a = 9 -a

9 - a + 10 = 19 - a

Find the volume of the prism.
3 cm
37 cm
5 cm

Answers

The answer to your question is 45

Calvin works at a pizza place making pizzas. If he is working alone, he can make an average of 15 3/4 per hour. If he works with his friend Megan, he tends to get distracted, and his rate falls by 1/2 per hour. How many pizzas can Calvin make in a 8- hour shift with Megan?

Explain the operations that will be needed to solve this problem, ans then solve it.

Answers

The fraction 1/2 converts to 0.50 in decimal form.

The mixed number 15 & 3/4 is the same as 15.75

If Calvin is distracted, then he makes 15.75-0.50 = 15.25 pizzas per hour on average.

Multiply by 8 to find the total number of pizzas possible.

8*15.25 = 122

Answer: Calvin can make 122 pizzas overall if he is distracted

Calvin can make 122 pizzas in an 8-hour shift with Megan.

Since Calvin works at a pizza place making pizzas, and if he is working alone, he can make an average of 15 3/4 per hour, but if he works with his friend Megan, he tends to get distracted, and his rate falls by 1/2 per hour, to determine how many pizzas can Calvin make in a 8-hour shift with Megan, the following calculation must be performed:

Rate of pizzas made x number of hours = Total number of pizzas (15 3/4 - 1/2) x 8 = X (15.75 - 0.5) x 8 = X 15.25 x 8 = X 122 = X

Therefore, Calvin can make 122 pizzas in an 8-hour shift with Megan.

Learn more in https://brainly.com/question/14963327

Is it fair to give only 5 points for such a big question?​

Answers

Answer:

No

Step-by-step explanation:

Because you (or whoever asks) shouldn't give only 5 points to such a big question, because whoever answers the question might have worked really hard to answer it while you just gave them only 5 points...its not worth answering of only 5 points. In my opinion at least ‍♀️

Hope what I said makes sense :)

Please help I don’t understand it

Answers

The constant is 3.

This is because when x=1, y=3 and when x=2, y=6 so that is a constant change over each interval as seen in the graph which is 3 :)

What is the value of x in the equation 3x-y = 30, when y = 15?

Answers

62663773828hfnmdmsmlap62sjdldleldlb

f

[tex]x=200[/tex]

Explanation:

Okay so we can start by substituting in [tex]y[/tex] as we know what it is already:

[tex](\frac{1}{5} )x-(\frac{2}{3} )(15)=30[/tex]

Now at this stage we could use a calculator to figure out what [tex]\frac{2}{3}[/tex] of [tex]15[/tex] are though a bit of mental math is as easy:

[tex](\frac{15}{3} )[/tex] · [tex]2=[/tex] [tex]5[/tex] · [tex]2[/tex]

okay so now we have:

[tex](\frac{1}{5} )x-10=30[/tex]  add 10 to both sides to get rid of the [tex]-10[/tex]

[tex](\frac{1}{5})x=40[/tex] let's get rid of that fraction by multiplying by [tex]5[/tex]

 and there's the solution for x

We can check we got this right by substituting it back into the original equation with the known y:

[tex](\frac{1}{5} )(200)-(\frac{2}{3})(15)=30[/tex]

now,  and we already know what out of is so :

that means

which is ✓

Therefore we know our solution is right.

What is 8 units to the left of (3, -7)

Answers

Answer:

(-5,4)

Step-by-step explanation:

Don’t answer on this or ur sus

Answers

>:)

heheheheheheheherhehehehreh

What is the value of k?

2k+9=7−3k


k=−2

k=−0.4

k = 2

k = 3.2

Answers

Answer:

k = -0.4

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

2k + 9 = 7 - 3k

Step 2: Solve for k

[Addition Property of Equality] Add 3k on both sides:                                  5k + 9 = 7[Subtraction Property of Equality] Subtract 9 on both sides:                        5k = -2[Division Property of Equality] Divide 5 on both sides:                                 k = -0.4

The function
y = 3.5x + 2.8 represents the cost y (in dollars)
of a taxi ride of x miles,

a. Identify the independent and dependent variables

Answers

Independent variable: x
Dependent variable: y

if 8 ^ x=2 sqrt 2 find the value of x.

Answers

Answer:

[tex]{ \rm{ {8}^{x} = \sqrt{2} }} \\ \\ { \rm{ {2}^{3x} = {2}^{ \frac{1}{2} } }} \\ \\ { \rm{3x = \frac{1}{2} }} \\ \\ { \rm{x = \frac{1}{6} }}[/tex]

Write the equation of the line with a slope of -3/4 and a y-intercept of 8 in slope
intercept form

Answers

Heheh the slope is 8

which one is this a b c d e the thing on the side dosent matter

Answers

Answer:

21.5m²

Step-by-step explanation:

Area for a square: LxW = A

10x10=100m²

Area for a circle: pi r² = A

pi(5)²=78.5m²

Find the difference:

100m²-78.5m² = 21.5m²

7x - 3= -3 + 7x find x​

Answers

I think x equals either 0 or 1 cause if you solved for x you would just end up with 0=0 so I think it would be x=0

can anyone heelp me pls pls

Answers

Answer: liquid= lotion capsule= solid suspension=semisolid

Step-by-step explanation:

(-8r^2s^-8)(-3r^-7s^8)

Answers

24r^−5s^0 would be your answer

What is the y-intercept of the line graphed on the grid?
A) -1
B) 2
C) -2
D) 1​

Answers

-2 is the y-intercept
Hope this helps:)

Which equation describes a line that passes through the points (0, -3)
and (2,7)?

Answers

Answer:

y = 5x - 3

Step-by-step explanation:

what is the value of p(x)=4x+15 ?

Answers

Answer:

The answer is 10x

Step-by-step explanation:

Solve. −2x−35=87 Enter your answer in the box. x =

Answers

Hello there! I am Grace Rosalia (SilentNature), and I hope my answer will help you! :)

-2x-35=-87

-2x=-87+35

-2x=-52

Divide both sides by -2 to isolate x:

x=26

Hope this helps you! :)

~Just a joyful teen

[tex]SilentNature[/tex]

The solution of the given equation is x = -21.

How to solve a linear equation?

A linear equation can be solved by equating the LHS and RHS of the equation following some basic rules such as by adding or subtracting the same numbers on both sides and similarly, doing division and multiplication with the same numbers.

The given equation can be solved as follows,

−2x − 35 = 87

=> -2x = -35 + 87

=> -2x = 42

=>  x = -42/2

       = -21

Hence, the value of x for the given equation is -21.

To know more about linear equation click on,

https://brainly.com/question/11897796

#SPJ2

Tristan is ordering a taxi from an online taxi service. The taxi charges $3 just for the pickup and then an additional $1.50 per mile driven. How much would a taxi ride cost if Tristan is riding for 9 miles? How much would a taxi ride cost that is mm miles long?

Answers

Answer:

$ 16.50

y = 1.50m + 3

Step-by-step explanation:

1.50(9) + 3 = $16.50

I have more question just don't get it wronge

Answers

Answer:

Relfection over the x axis

Step-by-step explanation:

It is the name shape but flipped onto the other side, therefore it is a reflection

Determine the equation of the line passing through the point below having the corresponding slope.
Point: ( -20, -34)
Slope: m =9/5
Write your answer as an equation in the form y=mx+b

Answers

Answer:

Step-by-step explanation:

-34 = (9/5)(-20) + b

b = -34 + 36 = 2

y = (9/5)x + 2

In which quadrant does the point (3 , 19) lie?

A.
Quadrant I

B.
Quadrant II

C.
Quadrant IV

D.
Quadrant III

Answers

Answer:

A.

Quadrant I

Step-by-step explanation:

Quadrant I= Both co=ordinates positive.

13 12 28 candy bars and 42 packs of gum were put in gift bags. The same number of candy bars and the same number of packs of gum were put in each bag. What is the greatest number of gift bags that could be made? ​

Answers

Answer:

Step-by-step explanation:

What is the value of x in the diagram below? If necessary, round your answer
to the nearest tenth of a unit.
14
х
B
L
D
с
30
O A. 30.1
B. 6.5
C. 14
O D. 16

Answers

Answer:

D. 16

Step-by-step explanation:

Sorry its blurry but please answer fast!!!!!

Answers

Answer:

i know 14 and 15 are true but not sure about 12 sry

Step-by-step explanation:

pls help me with this math

Answers

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