Write an explicit formula for each sequence. Then generate the first five terms. a₁ =100, r=-20

Answers

Answer 1

Given a₁ = 100, r=-20, the explicit formula of the geometric sequence is: a(n) = 100 . (-20)ⁿ⁻¹, and the first five terms are: 100, -2000, 40000,  -800000, 16000000

Let

a₁ = the first term

r = ratio

The n-th term of a geometric sequence is given by:

a(n) = a₁ . r^(n-1)

To find the explicit formula, substitute a₁ = 100, r=-20

a(n) = 100 . (-20)ⁿ⁻¹

The first 5 terms:

a₁ = 100

a(2) = 100 . (-20)²⁻¹

       = 100 . (-20)¹ = -2,000

a(3) = 100 . (-20)³⁻¹

       = 100 . (-20)² = 40,000

a(4) = 100 . (-20)⁴⁻¹

       = 100 . (-20)³ = -800,000

a(5) = 100 . (-20)⁵⁻¹

       = 100 . (-20)⁴ = 16,000,000

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Related Questions

The scores on the statistics test was normally distributed with a mean of 86 and a standard deviation of 5. Jose scored a 93 on his test. What percentage of the class scored less than he did?

Answers

The scores on the statistics test was normally distributed with a mean of 86 and a standard deviation of 5. Jose scored a 93 on his test then 1.4% of the class scored less than he did.

What is Normal Distribution?

A probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

The scores on the statistics test was normally distributed with a mean of 86, a standard deviation of 5, and Jose scored a 93 on his test.

We need to find the percentage of the class scored less than he did

z=(x-mean)/ S.D

=93-86/5

=7/5

=1.4

Therefore 1.4 percentage of the class scored less than Jose did.

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Consider the expression 9x + 2
9x is the ___ term
A. constant
B.Variable

Answers

Answer:

B

Step-by-step explanation:

9x is the variable in the question

-3 4/9 * 5 2/5 help me please

Answers

Answer:

-18.6

Step-by-step explanation:

I simply just did multiplication

 I multiplied the whole numbers alone and did the same with the fraction

then you add the two products and get your answer

PLEASE HELPP..............................................................

Answers

Answer:

a. No

b. Yes

c. Yes

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.
20
Required
Kamyle had 17 math problems for homework. If she finished 8 of them on the bus ride
home, how many more did she have to do?

Answers

Answer:

Step-by-step explanation:

x = number of math problems left to do

x + 8 = 17

    x = 17 -8

    x = 9

Kamyle needs to do 9 more math problems


Before it was demolished, the RCA Dome was home to the Indianapolis Colts. The attendance in 2001 was 450,746, and the attendance in 2005 was 457,373 .

a. What is the approximate rate of change in attendance from 2001 to 2005 ?

Answers

The approximate rate of change in attendance from 2001 to 2005 is 1657.  

Rate of Change of value is defined as the change in value over an interval of time.

Denoted by [tex]rate.of.change=\frac{change.in.value}{time}[/tex]

In the given question

Attendance in the year 2001 = 450746

Attendance in the year 2005=457373

Time = 2005-2001= 4 years .

[tex]rate.of.change=\frac{value.in.2005-value.in.2001}{2005-2001}[/tex]

rate of change = [tex]\frac{457373-450746}{4}[/tex]=[tex]\frac{6627}{4}[/tex]=1656.75≅1657

this  means that attendance increases about 1657 per year.

Therefore , the approximate rate of change in attendance from 2001 to 2005 is 1657 .

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What is the slope-intercept equation of the line with a slope of -13 that goes
through (5, 7)?

Answers

The slope-intercept equation of the line with a slope of -13 that goes

through (5, 7)

y = -13x + 72

point slope form:  y = MX + b

m = slope, b = y-intercept

y = -13x + b  through (5,7)

Use the given point as (x,y) to find b

7 = -13(5) + b

7 = -65 + b

b = 72

y = -13x + 72

In Mathematics, a slope of a line is the change in y coordinate with respect to the change in x coordinate.  the web change in the y-coordinate is represented by Δy and the net change in the x-coordinate is represented by Δx. Where “m”  is the slope of a line. So, tan θ to be the slope of a line. Pick two points on the road and determine their coordinates.

Determine the difference in y-coordinates of those two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope). Whenever the equation of a line is written within the form y = MX + b,  

it's called the slope-intercept form of the equation. The m  is the slope of the line. And b  is that the b in the point that is the y-intercept (0, b).  for instance, for the equation y = 3x – 7, the slope is 3,  and therefore the y-intercept is (0, −7).

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What information do you need to find a term of a sequence using an explicit formula?

Answers

The explicit formula can be found in three easy steps. Find the first term and the common difference of the arithmetic sequence first. Replace the values in the explicit formula's nth term.

What is sequence?

An ordered group of numbers with a shared difference between each succeeding word is known as an arithmetic sequence. For instance, the common difference in the arithmetic series 3, 9, 15, 21, and 27 is 6.

Arithmetic sequences are sequences containing these patterns. The distance between succeeding terms in an arithmetic series is always the same. The difference between consecutive words is always two, hence the sequence 3, 5, 7, 9... is arithmetic.

An explicit formula that states a = d (n - 1) + c, where d is the common difference between succeeding words, and c = a1, can be used to establish an arithmetic sequence.

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Questions attached in photo (geometry!! please help me!)

Answers

The value of both x and y are 6 degrees in the given figure of arrangement.

What is angle bisector ?

angle bisector is the line which divides the given angle into two equal parts.

a) Here, the line RQ is the angle bisector of angle ∠WRV that is RQ line divides the angle ∠WRV into two equal parts and it is given that :

angle ∠WRQ is 48 degrees

and, angle ∠QRV is 7y+6

Therefore, ∠WRQ = ∠QRV

7y+6 = 48

7y = 48-6

7y = 42

y = 6 degrees

b) It is given that CR is perpendicular to PR that is angle ∠CRP will make 90 degrees and it is given as :

∠CRP = 13x + 12 degrees

90 = 13x + 12

13x = 78

x = 6 degrees

Therefore, the value of both x and y are 6 degrees.

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Evaluate each expression 24 divid 6 +2^3•4

Answers

Answer:

36

Step-by-step explanation:

= 24/6+2^3*4

= 24/6+8*4

= 4+8*4

= 4+32

= 36

E Your bank account has a balance of -$12. You deposit $60. What is your new balance? (Answer asp pls)

Answers

Answer:

48 dollars

Step-by-step explanation:

its $48 dollars

Answer:

-12+60 = 48 Result :$48

Step-by-step explanation:

-12+60 = 48 Result :$48

the floor of a doghouse is 4 1/2 feet long and 6 3/3 feet wide. What is the area of the doghouse in square feet?

Answers

The area of the doghouse in square feet is calculated as 9 (13) ft2.

The formula to find the area of the dog house is 9(1/3) ft2

Area of the dog house = Length of the dog house width of the dog house

Area = (72 ft )  (83 ft )

Area = 7.82.3 ft*ft

Area = (566) ft2

Hence, the area becomes Area = 9 (13) ft2

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Please hurry
Add​​ using a number line.

−25+45

Drag and drop the word SUM to the correct value on the number line.

Answers

Answer:  i got it

Step-by-step explanation:

i hope this helped

Zoe struck out during 10% of her at bats last season. Design and conduct a simulation to estimate the probability that she will strike out at her next at bat this season.

Answers

The likelihood that Zoe would then strike out in her further at bat this season is calculated.

How is pie chart constructed?

The various findings or components in a pie chart are depicted by the sectors of a circle, and the entire circle symbolizes the total of the value of each of the components. Obviously, the overall angle of 360° at the central point of the circle is divided by the component values.

Now, for the stated question; It is mentioned that-

Step 1: Last season, Zoe struck out in 10% of her at-bats.

Thus, the probability that the Zoe struck out in her at-bats is 10%.

Then, the probability that the Zoe does not struck out in her at-bats is 90%.

Step 2: The simulation will have 40 trials.

Step 3: We can employ a spinner split into two sectors, one that included 10% of the spinner's area while the other 90%. Determine the central angle of the each sector.

Zoe got thrown out =10% of 360° = 36° Sector yellow

Zoe does not strike out (90 percent of 360° = 324°).

Consider the blue sector in the graph.

Step 4: A trial consists of one spin of the spinner and one strike on the bat by Zoe.

A successful trial means Zoe did not strike out, while a failed trial implies Zoe did strike out. The simulation will include 40 trials.

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3. If a-b=0, then either a = 0 or b=0. True or False​

Answers

Answer:

true

Step-by-step explanation:

False.


For example, you can do 4 minus 4, where the answer would be zero, without any of the values being zero.

Hope this helped! Please like and mark brainliest!

HELP ASP SHOW UR WORK YOULL GET BRAINILEST I don’t really know if u do show work on this question but Uhm

Answers

Answer:

multiply 4 times x and 3

Step-by-step explanation:

this is because the first step needed to solve is to expand it into 4x+12=12, so that u can solve it from here:

4x+12 =12

4x=12-12

4x=0

x=0/4

x=0

hope this helps :)

Answer: c. subtract three from both sides of the equation

Step-by-step explanation: you want to get the variable by itself. To do this reverse the subtraction or addition. In your case change the addition to subtraction.

If you do all of them you will get 50 points

Answers

Answer:

a. -10

b. -2

c. 10

d. 2

e. -2

f.  2

Answer:

a. = -10 b.=-2 c.=-2 d.=+2 e.=+2 f.=+10

i need help with this problem … it’s says

a room has a rectangular floor.if the length is fifteen feet longer than the width ,find the length and width of the room if the perimeter is 115

Answers

Answer:

Length is 26.25 and width is 21.25

Step-by-step explanation:

the length is gonna be the width but plus 15, so W+15, and we know that there's 2 widths and 2 lengths in a perimeter so were gonna start off our algebraic expression like this:

2(15+W)+2W=115

distribute the 2

30+2W+2W=115

combine like terms

30+4W=115

subtract 30 from both sides

4W=85

divide 4 from both sides

W=21.25

now plug in our width value into W+15 to find length

W+15

21.25+15=L

36.25=L

the sum of two numbers is 68 and the difference is 12. What are the numbers?

Answers

The answer is 28 and 40, they are 12 numbers apart and both add up to 68

Answer:

40, 28

Step-by-step explanation:

Let the numbers be x and y. The sum of two numbers is 68 and the difference is 12.

[Assuming x > y]

x + y = 68x - y = 12

Now add these equations,

[tex]\Rightarrow[/tex] x + y + x - y = 68 + 12

[tex]\Rightarrow[/tex] 2x = 80

[tex]\Rightarrow[/tex] x = 40

Then, y = 68 - 40 = 28

Hence,

The required numbers are:

Greater = 40Smaller = 28

Some tips:

Always incline towards using variables to get the results first, instead of hit n trial.Here y was eliminated when we added the equations. So always try to deduce the equations into a single variable.Cross check by placing the variable in the equation after u get the results.

If the parent function f(x) = |x| is transformed to g(x) = |x + 5|, what transformation occurs from f(x) to g(x)?

The graph of f(x) is shifted upward to create g(x).
The graph of f(x) is shifted downward to create g(x).
The graph of f(x) is shifted to the right to create g(x).
The graph of f(x) is shifted to the left to create g(x).

Answers

The graph of f(x) is shifted 5 units to the left to create g(x).

A parent function is an equation in the simplest form of a family of functions. A family of functions is a collection of functions that represent similar characteristics and/or transformations of its parent function. A parent function can be represented with different degree values such as degrees 1, 2, or 3.

The most basic parent function is called a constant function.

Types of Parent Functions

There are multiple forms of parent functions. Some types of parent functions are:

Constant function: A horizontal line that intersects the y-axis.

Square root function: The inverse function of a quadratic function following the form f(x)= [tex]\sqrt{x}[/tex]

Cube root function: The inverse function of a cubic function in the form f(x)= 3     [tex]\sqrt{x}[/tex]

A parent function is the simplest form that a function can be. Its basic shape is not in any way altered.

For instance, when you see a u-shaped graph that is inverted and vertically stretched, you should still recognize that it is a parabola which has undergone different transformations

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Answer:

The graph of f(x) is shifted 5 units to the left to create g(x).

Step-by-step explanation:

Write an inequality for the following statement.
2 is less than or equal to y

Answers

Answer:

2 ≤ y

Step-by-step explanation:

2 ≤ y

Is the fraction 1/3 equivalent to a terminating decimal or number that does not terminate

Answers

The fraction 1/3 is not equivalent to a terminating decimal

What is a terminating decimal?A

A terminating decimal can be defined as a decimal expressed in a finite number of figures.

It is also said to be a decimal having an end point.

Example;

1/ 2 is a terminating decimal having its value as 0. 5

Given the fraction;

1/ 3, the decimal value = 0. 333333333

It is not a terminating decimal as it has an indefinite decimal value.

Thus, the fraction 1/3 is not equivalent to a terminating decimal

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Write a two-column proof.

Given: BA ≅ DC, ∠ B A C ≅ ∠ D C A
Prove: BC ≅ DA

Answers

We can conclude that BC ≅ DA is congruent under corresponding parts of congruent triangles.

What clearly does the term "triangle congruency" mean?Two triangles are said to be congruent if all three corresponding sides are equal and all three corresponding angles are equal in measure.These triangles can be moved, rotated, flipped, and turned to appear identical.If they are repositioned, they will coincide.If two triangles satisfy the five congruence conditions, they are congruent.They are the side-side-side (SSS), side-angle-side (SAS), angle-side-angle (ASA), angle-angle-side (AAS), and right angle-hypotenuse-side  (RHS).

So,

Given: BA ≅ DC, ∠ B A C ≅ ∠ D C A

To Prove: BC ≅ DA

First, we'll prove the △BAC ≅ △DAC

BA = DC = Given∠BAC = ∠DCA = GivenAC = AC = Common base

So, △BAC ≅ △DAC under SAS conditions.

Then we can say that BC ≅ DA is under (CPCT).

Therefore, we can conclude that BC ≅ DA is congruent under corresponding parts of congruent triangles.

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Determine whether the quadrilateral can always, sometimes, or never be inscribed in a circle. Explain your reasoning.
rectangle

Answers

A rectangle as the only parallelogram that can be inscribed in a circle.

Can the quadrilateral always be inscribed in a circle?

A rhombus's opposite angles are congruent. If a rhombus has an angle, it has one pair of opposite angles that are and another pair of opposite angles that are. Because opposite angles are not supplementary, this rhombus cannot be encircled.

Because not all quadrilaterals can be inscribed in circles, they are not all cyclic quadrilaterals. If and only if the opposite angles of a quadrilateral are supplementary, it is cyclic.

A rectangle is the only parallelogram that can be inscribed in a circle. The important point is that the radius of the circle is R, because every rectangle can be inscribed in a (unique circle). (I believe.) One of the properties of a rectangle is that the diagonals bisect in the 'center,' which is also the circumscribing circle's center.

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Scale the numerator and the denominator down by a factor of 4 (divide) to write a fraction equivalent to 24 56

Answers

The fraction equivalent to 24 /56 is  6/14.

What is fraction?

A fraction having whole numbers for the numerator and denominator. A fraction is a number of the form: ab where a and b are integers and b≠0. It represents the division of two numbers.

Given:

Scale the numerator and the denominator down by a factor of 4.

According to given question we have

Down by a factor of 4 means divide  by 4.

when you scale the numerator and denominator down by 4, you just divide both of them by 4.

So since 24 divided by 4 is 6 and 56 divided by 4 is 14,

The answer is 6/14.

Therefore, the fraction equivalent to 24 /56 is  6/14.

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Please help i'm very confused :')

Answers

Answer:

Mean:  76

Median:  69

Mode:  63

Range: 46

Standard deviation: 15.5

Step-by-step explanation:

Given:

Mean = 62Median = 55Mode = 49Range = 46Standard deviation = 15.5

If each value in the data set is increased by a constant k, the mean, median, and mode will be increased by k.  

The range and standard deviation will remain unchanged.

Therefore, if each value in the data set is increased by 14:

Mean:  62 + 14 = 76Median:  55 + 14 = 69Mode:  49 + 14 = 63Range: 46Standard deviation: 15.5

Help please, it’s maths homework and I’m very confused at the moment

Answers

Answer:

show working

Step-by-step explanation:

you know the area of a rectangle or square is length x width, we do the same here.

so we have a length of (x+5) and because its a square we do (x+5)(x+5) which is

[tex] {x}^{2} + 10x + 25[/tex]

and we know the area of the square is 30 so we make the expression above equal to 30 and take 25 away from both sides to get the wanted equation

(7x+6) degrees (5x-18) degrees

Answers

The value of x is equal to 16.

What is the variable behind a system formed by two supplementary angles

Let A and B be angles supplementary to each other, two angles are supplementary when the sum of its measures is equal to 180°. Mathematically speaking, the geometric system is represented by the following formula:

(7 · x + 6) + (5 · x - 18) = 180

12 · x - 12 = 180

12 · x = 192

x = 16

The solution to this equation is 16.

Remark

The statement is incomplete, correct form is shown below:

Let be A and B two angles that are supplementary to each other. The measures are (7 · x + 6)° and (5 · x - 18)°, respectively. Find the value of x.

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Solve x in the given equation -3x + 2c = -3

Answers

Answer:

[tex]x = 1 + \frac23c[/tex]

Step-by-step explanation:

Hello!

Solve for x by isolating the variable.

Solve for x-3x + 2c = -3      Subtract 2c from both sides-3x = -3 - 2c       Divide both sides by -3x = [tex]\frac{-3 - 2c}{-3}[/tex]            Simplifyx =  [tex]1 + \frac23c[/tex]

The solution for x is [tex]x = 1 + \frac23c[/tex].

Find the value of each variable and the measure of each labeled angle.

Answers

assuming 4x+21=6x-23

then you can get x by doing

4x+21=6x-23

21=2x-23

44=2x

x=22

4x+21= 109

6x-23= 109

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Which statement is correct about honey? A discrepancy between the self-concept and the ideal self results in:________a. incongruence. b. the person of tomorrow. c. safe-guarding tendencies. d. ego defense mechanisms. Free association and dream analysis ________ are techniques typically used in hypnotized subjects. provide insight into the workings of the unconscious. were developed in the early 1800s. Help this is due tomorrow no hate Im a 5th grader Which of the following is true of the credit and debit columns in theadjusted trial balance?OA. The credit should be larger than the debit.B. The debit should be larger than the credit.O C. The credit and debit should match.O D. Together they should equal owner's equity. Refer to the graph you prepared and determine the following: Interpolation: The amount of hydrogen that would be produced by dropping 2.5 grams of zinc in 100 mL of sulfuric acid solution with th same concentration? mL A buffer is prepared by mixing 37.2 ml of 0.209 m naoh with 125.7 ml of 0.231 m acetic acid. what is the ph of this buffer? (the pka for acetic acid is 4.75.) what is -188.7 in scientific notation with the correct number of significant digits Question 2(Multiple Choice Worth 5 points)(01.03 MC)Baghdad was a veritable City of Palaces, not made of stucco and mortar, but of marble. The buildings were usually of several stories. The palaces and mansions were lavishly gilded and decorated, and hung with beautiful tapestry and hangings of brocade or silk. The rooms were lightly and tastefully furnished with luxurious divans, costly tables, unique Chinese vases and gold and silver ornaments.--Arab Geography Yakut, quoted in William Stearns Davis, ed., Readings in Ancient History: Illustrative Extracts from the Sources, 2 Vols. (Boston: Allyn and Bacon, 1912-13), Vol. II: Rome and the West, pp. 365-367The quotation above supports what claim about medieval Baghdad? It did not tolerate religious diversity. It was connected to international trade. It was much richer than China. There were no major class divisions within the city. Segment AB intersects the circle with center C . What statement correctly describes the relationship shown in the image? The above paragraph states that the process of accommodation adjusts the shape of the lens tofocus light so Imani can see the painting clearly from a distance. Should we change the name of thisprocess? To advertise their newest burger, the restaurant is using a billboard that uses a scale of 1 foot = 9/16 inch . If the diameter of the actual burger is 4 1/2 inches, What will be the diameter of the burger on the billboard? Ratios that help determine the efficiency with which a company manages its day-to-day tasks and assets are called:_______ Which of these events occurred during the Ghana Empire?Timbuktu was developed into a center of learning.Islam was introduced into the West African region.Moroccan invaders conquered the empire.A large amount of technology was developed. Find the distance between each pair of parallel lines with the given equations.) y=-0.75 x-1 3 x+4 y=20 What are a few industries and/or organizations that are fitting well with their current environments? What are a few that are not? Why? What is the value in year 3 of a $10,000 cash flow made in year 20 if interest rates are 5 percent? In Of Plymouth Plantation, what figure of speech is used in the following line?'Squanto...was a special instrument sent of God")A) simileB) personificationC) metaphorD) repetitionhat is textual evidence? You receive a prescription that reads "Lisinopril 20 mg. Take one tablet by mouthonce daily. Dispense: XXVIII". How many tablets will you dispense? The sum of two numbers is 35. The sum of the smaller and 4 times the larger is 116. Find the numbers.