Find the next two terms in each sequence. Write a formula for the n th term. Identify each formula as explicit or recursive. 21,13,5,-3, ......

Answers

Answer 1

The formula for nth term of the given sequence is [tex]T_{n+1} = T_{n} - 8[/tex].

According to the given question.

We have a sequence, 21,13,5,-3, .......

Since, the first term of the given sequence is 21.

The second term of the given sequence is 13.

Here we can see that, each term is less than 8 to the previous term. It means the common ratio of the given sequece is -8 and it is an arithmetic sequence.

Therefore, the formula for nth term of the given sequence is given by

[tex]T_{n+1} = T_{n} - 8[/tex]

Where, n is the number of term.

Hence,  the formula for nth term of the given sequence is [tex]T_{n+1} = T_{n} - 8[/tex].

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Related Questions

12x)^0 (6x^-4)
please can someone solve this i need it now!!! :(

Answers

After simplification, the value of the given expression (12x)⁰(6x⁻⁴) is 6/x⁴.

What are expressions?A mathematical expression is a phrase that contains a minimum of two numbers or variables and at least one mathematical operation. It is possible to multiply, divide, add, or subtract in math. An expression has the following structure: (Mathematical Operator, Number/Variable, Expression)

So, (12x)⁰(6x⁻⁴):

(12x)⁰(6x⁻⁴)6 × 1/x⁴6/x⁴

Therefore, after simplification, the value of the given expression is 6/x⁴.

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The table shows the results of an experiment in which a spinner numbered 1-4 was spun.

What is the experimental probability that the spinner will land on a 4?

Answers

Answer:

1/4 or 25% or 0.25

Step-by-step explanation:

Find the following given the function f(x)=


Plsssss helpppppppp

Answers

Answer:

1 /(√5-4)

Step-by-step explanation:

√5 is less than 3.

Therefore

f(√5) = 1 /(√5-4)

is the following relation a function?

Answers

Answer:

relation

Step-by-step explanation:

To be a function each element from set x has only one unique element in y.

In our case x = 0 has two outcomes y = 1 and y = 3, so is a relation.

f(x) = y

f(-2) = 5

f(0) = 1  and f(0) = 3

f(5) = 8

f(7) = 5

Some memory aids:

Think about if we count how many likes we got on a social media post at the end of the day, then we can not have different numbers for same post yet we can have the same number of likes on different posts to be a function.

f(post 0) = 1  like  and f(post 0) = 3 likes ❌ not a function because same post has different numbers of likes at the end of the day -not possible

f(post -2) = 5 likes and f(post 7) = 5 likes ✅ could be a function because different posts can have the same number of likes at the end of the day

Assuming that g(x) = 1/3 f(x) and h(x) = -g(x) + 4, fill in the following table.


Please, someone help me on this. ​

Answers

Answer:

Step-by-step explanation:

The values of functions are as follows:

g(-6) = -6

g(0) = 5

g(7) = 8

h(-6) = 10

h(0) = -1

h(7) = -4

Given, that function g(x) = f(x)/3 and function h(x) = -g(x) + 4

Now to calculate the function values on different values of x.

g(x) = f(x)/3

h(x) = -g(x) + 4

1 )

When x = -6

f(-6) = -18

g(-6) = f(-6)/3

g(-6) = -18/3

g(-6) = -6

h(-6) = -g(-6) + 4

h(-6) = 6 + 4

h(-6) = 10

2)

When x = 0

f(0) = 15

g(0) = f(0)/3

g(0) = 15/3

g(0) = 5

h(0) = -g(0) + 4

h(0) = -5 + 4

h(0) = -1

3)

When x = 7

f(7) = 24

g(7) = f(7)/3

g(7) = 24/3

g(7) = 8

h(7) = -g(7) + 4

h(7) = -8 + 4

h(7) = -4

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Which expression shows a way to factor 36+48

Answers

The expression for 36+48 is 12(3 + 4).

What is factor?

A number or algebraic expression that divides another number or expression evenly—i.e., with no remainder.

Given:

36+48

Now, factorise 36 and 48

36=2*2*3*3

48=2*2*2*2*3

So, the common factor is 12.

Hence, the for the factor is 12(3 + 4)

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Tamika is preheating her oven before using it to bake. Tamika wants to predict the
final temperature after a minutes. She wrote the equation y = 45x + 67, where y
represents the final temperature in degrees Fahrenheit. What could the number 67 in
Tamika's equation represent?

Answers

In Tamika's equation  y = 45x + 67, 67 represents temperature in degree Fahrenheit.

What is a equation?

An equation is a mathematical statement that compares two mathematical expressions by equating them  and on both sides the quantities are of same type . Like we cannot compare a length quantity with a temperature quantity.

Given that Tamika wants to predict the final temperature after some minutes of preheating her oven. She wrote the equation y = 45x + 67, where y represents the final temperature in degrees Fahrenheit.

y = 45x + 67

In this equation as y is temperature so the expression  45x + 67 is of  temperature in degrees Fahrenheit too and each term of this expression is also temperature in degrees Fahrenheit.

Therefore , 67 represents temperature in degree Fahrenheit.

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The roller coaster at the state fair cost 7 tickets per ride. If you had 833 tickets, how many times could you ride it.

Answers

Answer:119 times

Step-by-step explanation:

833/7=119

uhh i need help someone help me pls

Answers

put one point on (0,4) and another on (1,5)

1) A 14.24 pound bag of cheese is split among
5 pizzas. How much cheese is on each pizza?

Answers

Answer:

2.848 pound

Step-by-step explanation:

On 5 pizzas = 14.24 pound cheese

On 1 pizza = 14.24/5 pound

=2.848 pound

2.848 because I did this in class with the teacher and this is the answer she gave me

For questions 1-4, use the word "PROBABILITY."

. What are the possible outcomes of choosing a letter randomly?

2. which outcomes have more than one possibility?

3.How many outcomes are included in the event that a consonant is chosen?​

Answers

The possible outcomes of choosing a letter randomly-

PROBABILITY is the given letter.

As a result, the total number of letters is 11 vowels 4 consonants = 7.

So I the chance of opting a vowel is4/11

ii) the chance of opting a consonant is7/11

PROBABILITY is the given letter.

As a result, the total number of letters is 11 vowels 4 consonants = 7.

So I the chance of opting a vowel is4/11

ii) the chance of opting a consonant is7/11

The probability expressions listed below might help you better comprehend probability generalities.

trial An trial is a trial or operation that's carried out to induce a result.

A sample space is made up of all of the possible results of an trial.

Favorable outcome is an circumstance that has delivered the intended result or event. For illustration, if we roll two bones and admit the aggregate of the figures on the bones as 4, the possible/ favorable possibilities.

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a. A line passes through (-5,0) and (0,7) . What is an equation of the line in point-slope form?

Answers

7 - 0 = 7/5(0 - (-5)) is the equation in slope intercept form for the line passes through points (-5,0) and (0,7).

What is a slope of line?

A line's steepness and direction are determined by the slope of the line. Without actually using a compass, determining a line's slope in a coordinate plane allows one to anticipate whether a line is parallel, perpendicular, or not.

The change in a line's y coordinate relative to its change in x coordinate is referred to as the line's slope. Δy is the net change in the y coordinate, while Δx is the net change in the x coordinate.  

Therefore,

m =  y₂-y₁/x₂-x₁ (where m denotes the slope) can be used to express how the y coordinate changes in relation to the x coordinate.

Be aware that tan ∅ = y/x

We also refer to this tan as the line's slope.

We have been asked  to write an equation of the line in point-slope form

of a  line which passes through (-5,0) and (0,7)

We know that  point-slope form = y₂ - y₁ = m(x₂ - x₁)

But first we will find slope(m)

We know that slope = m = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]

For the pairs of points (-5,0) and (0,7)

⇒ m = [tex]\frac{7- 0}{0 - (-5)}[/tex]

⇒ m = [tex]\frac{7}{5}[/tex]

⇒ m = 7/5

After we substitute the given information we get

7 - 0 = 7/5(0 - (-5))

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how much is a 47 mile taxi ride

Answers

The fare for 47 miles is $32.9

What is unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

Total miles= 36  miles

Total fare = 25.20

fare for 1 miles

= 25.20/36

=0.7

Now, for 47 miles the fare will be

=0.7*47

=$32.9

Hence, the fare for 47 miles is $32.9

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Please someone help I’ve been stuck on this forever

Answers

Whats the question? If its asking the gradient of the line then its -6 and 2/3 as it goes along 3 and down 20 so 20/3 = 6 and 2/3

The hockey stick that Erik wants to purchase is $95.00. He knows the price will increase by 15% by the end of next month. Erik needs to calculate the new price of the hockey stick. He solved the problem using the steps below

Answers

The new price of the hockey stick based on the information is $109.25.

How to calculate the value?

From the information, the hockey stick that Erik wants to purchase is $95.00. He knows the price will increase by 15% by the end of next month.

Therefore, the new price will be:

= $95 + (15% × $95)

= $95 + (0.15 × $95)

= $95 + $14.25

= $109.25

Therefore, the new price of the hockey stick is $109.25.

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The hockey stick that Erik wants to purchase is $95.00. He knows the price will increase by 15% by the end of next month. Erik needs to calculate the new price of the hockey stick. What will the new price be?

Help me pls
thanks
please show work!​

Answers

Answer:

7. ) 3 3/4   9.) 3 1/8  11.) 7/16  13.) 5 13/15  15.) 7 1/2

Step-by-step explanation:

Number 7, first make 4 1/6 into an improper fraction.

6x4+1= 25/6

25/6x9/10

225/60

Simplified- 3 3/4

Number 9, make 4 3/8 into an improper fraction.

4x8+3= 35/8

35/8x5/7

175/56

Simplified- 3 1/8

Number 11, make 2 5/8 into an improper fraction.

2x8+5= 21/8

21/8x1/6

21/48

Simplified- 7/16

Number 13, make 1 3/5 and 3 2/3 into an improper fraction.

1x5+3= 8/5,   3x3+2=11/3

8/5x11/3

88/15

Simplified- 5 13/15

Number 15, make 3 1/3 and 2 1/4 into an improper fraction.

3x3+1= 10/3,   2x4+1=9/4

10/3x9/4

90/12

Simplified- 7 1/2

Hope that helped! :D

Which equivalent to log 20?

A. log 10 x log 2
B. log 15 + log 5
C. log 30 - log 10
D. log 60/log 3
E. log 80 - log 4

Answers

Answer:  Choice E

==========================================

Reason:

log(80) - log(4)

log(80/4)

log(20)

The rule used is log(A) - log(B) = log(A/B)

Using a calculator,

log(80) - log(4) = 1.30103 approximatelylog(20) = 1.30103 approximately

which helps confirm the answer. The logs I used were base 10, but it could be any base really.

Find the surface area of the composite figure.

Answers

Answer:

268Cm2

Step-by-step explanation:

Used AI:R Math, snap a picture of a math question and tutors will solve it for free in a matter of minutes.


True or false? Any two right triangles with the same hypotenuse have the same area.
Explain your reasoning.

Answers

The statement that any two right triangles with the same hypotenuse have the same area is false.

Hypotenuse is defined as the longest side of a right-angled triangle.

let us take two triangles ΔXYZ & ΔDEF with same hypotenuse

for ΔXYZ let, XY(height)=7cm, YZ(base)=24cm, XZ(hypotenuse)=25cm.

for ΔDEF let, DE(height)=15cm, DF(base)=20cm, DF(hypotenuse)=25cm.

Area of a Right Angled Triangle is given by [tex]=\frac{1}{2} *base*height[/tex]

For ΔXYZ

Area=(1/2)*base*height

= (1/2)*24*7

=12*7

=84 ......(1)

For  ΔDEF

Area=(1/2)*base*height

= (1/2)*20*15

=10*15

=150 .......(2)

From equation (1) & (2) we can conclude that two triangles having same hypotenuse may not have same area.

Therefore , the statement that any two right triangles with the same hypotenuse have the same area is false.

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he graph of the function f(x) = (x − 3)(x + 1) is shown. On a coordinate plane, a parabola opens up. It goes through (negative 1, 0), has a vertex at (1, negative 4), and goes through (3, 0). Which describes all of the values for which the graph is positive and decreasing? all real values of x where x < −1 all real values of x where x < 1 all real values of x where 1 < x < 3 all real values of x where x > 3

Answers

Answer:

real x values is x < -1

Step-by-step explanation:

The students in a school are all invited to participate in a survey. 48% of the students at the school are males, of whom 16% will participate in the survey. 35% of the females will also participate in the survey. A student is randomly chosen from the school. Find the probability that the student:
a) will participate in the survey

Answers

Answer:

If the student is female then the probability that the student will participate is about 67%

If the student is male the probability that they participate is about 33%

Step-by-step explanation:

It is given that 48% of the students in the school are male. That means that the remaining students in this school are (for the sack of this problem) female out 100% of students. You would subtract 48% from 100% which is 52% which is the percentage of students in the school who are female.

From this point you need to find the percentage of students who would participated in the survey. To do that you would divide the number of the type of student who did the survey by the type of student in the school. For example for the male you would divide 16% from 48% or 16 ÷ 48 which would equal to the proposed of males who would participate which is about 33% of males. You would do the same math for finding the probability of females so it would be 35 ÷ 52 which is about 67% of females.

Even though the random student is more likely to be female the chances of the gender of the student is almost 50%/50% because if you round it to the nearest tenth it would be 50.

Which of the following is a counterexample for this conditional statement?
If a number is positive, then it is spelled without the letter 'e'.
6
1
2
4

Answers

Answer:  Choice B

Explanation:

The number 1 is spelled as "one", which clearly has an "e" in it. This contradicts the original statement that we don't need this letter.

The other numbers of 6 (six), 2 (two), and 4 (four) don't involve "e"s at all. So they can be ruled out.

HELP ASAP ASAP ASAP ASAP​

Answers

Answer:

Step-by-step explanation:

somewhat


Use the given information to determine whether LM is a perpendicular bisector, median, and/or an altitude of Δ J K L .
LM ⊥ JK

Answers

Since LM ⊥ JK, LM is an altitude by the definition of altitude. We don't know if it is a perpendicular bisector because it is not evident that M is the midpoint of JK.

What is meant by the altitude of a triangle?

An altitude of a triangle is a line segment through a vertex that is perpendicular to a line containing the base in geometry. The extended base of the altitude is the line that contains the opposite side. The intersection of the extended base and the altitude is known as the altitude's foot.

A triangle's altitude is the perpendicular drawn from the triangle's vertex to the opposite side. The altitude, also known as the triangle's height, forms a right-angle triangle with the base.

Since LM ⊥ JK, LM is an altitude by the definition of altitude. We don't know if it is a perpendicular bisector because it is not evident that M is the midpoint of JK.

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An urn contains 5 red 6 blue and 8 green balls. if a set of 3 balls is randomly selected, what is the probability that each of the balls will be (a) of the same color? (b) of different colors?

Answers

The probability that each of the balls will be; a) P( of the same color) = 0.08875. b) P ( of different color) = 0.247678

What is the probability?

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

The Number of red balls = 5

The number of blue balls = 6

The number of green balls = 8

The Total number of balls = 5 + 6 + 8 = 19

Then with three balls selected at random, by using combination method ;

nCr = n!/(n-r)!r!

a) P( of the same color) = 5C3 + 6C3 + 8C3 / 19C3

=  86/969 = 0.08875

b) P ( of different color) = 5C1 X 6C1 X 8C1 /19C3

= 240/969 = 0.247678

Hence, The probability that each of the balls will be; a) P( of the same color) = 0.08875. b) P ( of different color) = 0.247678

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The area of a rectangular garden is 24x^2 - 64x. The width is 8x. Find the length in terms of X.

Answers

The length of the garden will be - L = 3x - 8.

We have a rectangular garden.

We have to determine its length.

What is the Area of Rectangle?

The area of rectangle is -

A = L x B

According to the question -

Area = [tex]24x^{2} -64x[/tex]

Width = [tex]8x[/tex]

Therefore -

Area = Length x Width

Length = Area / width

Length = [tex]$\frac{24x^{2} -64x}{8x} = 3x -8[/tex]

Hence, the length of the garden will be - L = 3x - 8.

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The expression 4·125‾‾‾‾√3gives the perimeter of the base of a cube with a volume of 125 cubic inches. What is the length, in inches, of the perimeter of its base?

Answers

The length, in inches, of the perimeter of its base is 5in

Volume of a cube

A cube is a three dimensional object with 6 faces and 12 edges.

The formula for calculating the volume of a cube is expressed according to the equation;

V = l³

l = ∛V

where

l is the side length of the cube

Given the following parameters

V = 125in³

Substitute

125 = l³

l = ∛125

l = 5in

Hence the length, in inches, of the perimeter of its base is 5in

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What is the LCM of the expressions?

b. x² + 3x - 4, x² + 2x - 8 , and x² - 4x + 4

Answers

LCM of the given expressions x² +3x - 4, x² +2x - 8 , and x² - 4x +4 is

(x-2)²(x+ 4)(x-1).

As given,

Given expressions  x² +3x - 4, x² +2x - 8 , and x² - 4x +4

Simplify by factorizing them,

x² +3x - 4 =x² +4x-x-4

               =(x +4)(x -1)

x² +2x - 8 =x² + 4x -2x -8

                =(x+4)(x-2)

x² - 4x +4 = x² -2(2x) +(2)²

                = (x-2)²

LCM = (x-2)²(x+ 4)(x-1)

Therefore, LCM of the given expressions x² +3x - 4, x² +2x - 8 , and

x² - 4x +4 is (x-2)²(x+ 4)(x-1).

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State whether following sentence is true or false. If false, replace the underlined term to make a true sentence.
A permutation is an arrangement of objects in which order is NOT important.

Answers

False , A permutation is an arrangement of objects in which order is NOT important.

In statistics, what does a probability mean?

The probability serves as a gauge for how likely an event is to occur. It gauges how likely an event is. P(E) = Number of Favorable Outcomes/Number of Total Outcomes is the formula for probability.Mathematics' study of random events is known as probability, and there are four primary types of probability: axiomatic, classical, empirical, and subjective. Since probability is the same as possibility, you could say that it is the likelihood that a specific event will occur.

This sentence is false.

A permutation is an arrangement of objects in which order is NOT important.

True sentence is -

State whether following sentence is true or false. If false, replace the underlined term to make a true sentence.

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Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

Answers

Answer:

S' (- 3, 7 )

Step-by-step explanation:

under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

S (3, 7 ) → (- 3, 7 )

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