Here are the first 4 terms of a sequence.
85 81 77 73
a) (i) Write down the next term in the sequence.
(ii) Explain how you got your answer.
b) Work out the 10th term of the sequence.

Answers

Answer 1

Answer:

a) (i) Next term = 69a) (ii) Subtract 4 from each term to get the next term. For example, 85-4 = 81 and 81-4 = 77, and so on.b) The 10th term is 49 The work for part (b) is shown in the next section below.

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

a1 = 85 = first term

d = -4 = common difference

an = a1 + d(n-1)

an = 85 - 4(n-1)

an = 85 - 4n + 4

an = -4n+89

a10 = -4*10+89

a10 = 49 is the tenth term


Related Questions

At which value(s) of x does the graph of the function F(x) have a vertical asymptote? Check all that apply.

F(x) = x/(x+2)(x-1)

o x=10
o x=-2
o x=0
o x=-1
o x=2
o x=1

Answers

Answer:

x = - 2, x = 1

Step-by-step explanation:

Given

f(x) = [tex]\frac{x}{(x+2)(x-1)}[/tex]

The denominator cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving for x gives the values that x cannot be and if the numerator is non zero for these values then they are vertical asymptotes.

(x + 2)(x - 1) = 0

x + 2 = 0 ⇒ x = - 2

x - 1 = 0 ⇒ x = 1

Vertical asymptotes occur at x = - 2 and x = 1

write the exponential equation that models the sequence: 15, 30, 60, 120…

Answers

Answer:

y=15(2)ˣ

Step-by-step explanation:

If each term is being multiplied by 2 starting with 15, then the exponential equation that models this sequence is y=15(2)ˣ where x is the nth term of the sequence.

Answer:

mrk me brainliest first plzz

Step-by-step explanation:

(2. Given that AABC is similar to ADEC, find the values of the unknowns in the figure.
7.3 cm
А Ar
B
489
8 cm
С
10 cm
60°
E
D
y cm

Answers

Answer:

x = 72 degrees

y = 9.125 cm

Step-by-step explanation:

the sum of degrees of all angles in a triangle is 180.

because the triangles are similar, all the angles must be the same in both. and the side lengths of one triangle must all have the same scaling factor compared to the other triangle.

the similarity tends is that the angle at E is the same as at B (48 degrees). so, then the angles at C are 60 degrees. that leaves for the angle at D (x) 180 - 60 - 48 = 72

BC (8) is scaled to CE (10) by the factor 10/8 = 5/4

so, y must have the same scaling factor in relation to AB (7.3)

y = 7.3 × 5/4 = 9.125

Find the Highest Common Factor of 32 and 14.

Answers

Answer:

2

Step-by-step explanation:

Prime Factorization of 14

Prime factors of 14 are 2, 7. Prime factorization of 14 in exponential form is:

14 = 21 × 71

Step-2: Prime Factorization of 32

Prime factors of 32 are 2. Prime factorization of 32 in exponential form is:

32 = 25

Step-3: Factors of 14

List of positive integer factors of 14 that divides 14 without a remainder.

1, 2, 7

Step-4: Factors of 32

List of positive integer factors of 32 that divides 14 without a remainder.

1, 2, 4, 8, 16

Final Step: Greatest Common Factor Number

We found the factors and prime factorization of 14 and 32. The biggest common factor number is the GCF number.

So the greatest common factor 14 and 32

The highest common factor between 32 and 14 is 2

Plzz help me and thanks

Answers

Answer:

C. Last week it rained every day in San Antonio, Texas

Step-by-step explanation:

Climate is the long-term pattern of weather and temperature. The third answer does not talk about the weather of San Antonio from a long-term perspective, instead, it only discusses a week. The climate of San Antonio should refer to the rain patterns of multiple years, not days.

Jim and Tim share money in the ratio 6:1 if Tim gets 54 how much does Jim get

Answers

The amount of money owned by JIm is $9

How to determine the amount owned by JIm

From the question, we have the following parameters that can be used in our computation:

The ratio of the amount owned by Tim tohe ratio of the amount owned by Jim is 6 : 1

This means that

Tim : Jim = 6 : 1

Also from the question, we have

Tim gets $54

This means that

Tim = 54

Substitute the known values in the above equation, so, we have the following representation

54 : Jim = 6 : 1

Multiply by 9

54 : Jim = 54 : 9

So, we have

Jim = 9

Hence, the amount is $9

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For every 5 boys, there are 25 girls. Write this ratio in the simplest form in all three ways (ratio, decimal, fraction).
For every 150 dogs, there are 300 cats. write this ratio in simples form in all three ways.

Answers

Answer:

Step-by-step explanation:

5 : 25

In simplest form

1 : 25

In fraction form

1/25

In decimal form

0.04

150 : 300

In simplest form

1 : 2

In fraction form

1/2

In decimal form

0.5

i said that he would not say that redkskwfannrtrttt would not be

Select the correct answer from the drop-down menu. You are conducting a survey on the best beaches in the world. The group that would probably give you the most reliable data is .
A) tourists who wish to visit the beaches
B) officials who manage the beaches
C) tourists who have visited the beaches
D) friends and family

Answers

The group that would probably give you the most reliable data is tourists who have visited the beaches. Option C is the correct answer.

In order to gather information about a service, product, or process, a survey is described as an act of looking at a process or interviewing a predetermined sample of people. Surveying beachgoers who have previously been there will yield more accurate results regarding the greatest beaches because they can share their personal experiences.

Surveying those in charge of the beaches is not a smart idea since they would be prejudiced in saying that their beaches are the finest. As a result, the third choice is the best one.

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a bucket contains two red, three white and one green ball.
If three balls suddenly come off, what is the chances of getting two white balls from those balls

Answers

Answer:

a bucket contains two red, three white and one green ball.

If three balls suddenly come off, what is the chances of getting two white balls from those balls

I need the answers because I really confused

Answers

Answer:

10

Step-by-step explanation:

212-198= 14 rounded down to 10

A game lasts 58 hours. Charlie played 4 of these games. For how long did he play in total? Write your answer in simplest form.

Answers

Answer:

232 Hours

Step-by-step explanation:

Given data

Duration of game= 58 hours

Number of games played= 4 games

Hence the total duration for these four games is

=58*4

=232 Hours

Therefore Charlie spent 232 Hours playing games

A. −1.8
B. -0.8
C. 0.8
D. 12

Answers

definitely b I’ve done this before

Complete the square to write each equation in vertex form. Then, state whether the vertex is a minimum or a maximum and give its coordinates.

Answers

Answer:

a) y = (x + 1)^2 - 3

b) minimum

c) (-1, -3)

Step by step:

We start with the equation:

y = x^2 + 2*x - 2

First, we want to complete the square to write the equation in the vertex form.

y = (x - h)^2 + k

Such that the vertex is (h, k)

To complete the square, we can write this as:

y = x^2 + 2*1*x - 2

Now we can add and subtract 1

y = x^2 + 2*1*x + 1 - 1 - 2

y = (x^2 + 2*1*x + 1) - 3

The thing inside the parentheses can be written as:

x^2 + 2*1*x + 1 = (x + 1)^2

Then the quadratic equation will be written as:

y = (x + 1)^2 - 3

This is the vertex form.

b) Now we want to know if the vertex is a minimum or a maximum.

Remember that the leading coefficient tells use if the graph of the function opens up or down.

If the leading coefficient is positive, the graph opens up (then the vertex is a minimum)

If the leading coefficient is negative, the graph opens down (then the vertex is a maximum)

In this case, we can write:

y = 1*(x + 1)^2 - 3

The leading coefficient is 1, positive.

Then the vertex is a minimum.

c) The coordinates of the vertex are:

Remember that in the vertex form:

y = (x - h)^2 + k

the vertex is (h, k)

Then the vertex of our equation is:

(-1, - 3)

Find the value of each trigonometric ratio.

tan A

39

15

36

B

Answers

The value of each trigonometric ratio is given by :

sin A = 5/13 , cos A = 12/13, tan A = 5 / 12

cosec A = 13 /5 , sec A = 13/12 , cot A = 12 /5.

As given in the question,

Let us consider a triangle be ABC,

Figure is attached.

Side length is given by:

AC = 39

AB = 36

BC = 15

AC represents the longest side

( 36 )² + (15)² = (39)²

⇒AB² + BC² = AC²

By Pythagorean triplets ABC is right angled triangle.

All trigonometric ratio with respect to angle A is given by :

sin A = BC / AC

        = 15/39

        = 5/13

cos A = AB / AC

         = 36 /39

         = 12 /13

tan A = BC / AB

         = 5 /12

cosec A = 1/ sin A

              = 13 /5

sec A = 1/ cos A

         = 13 /12

cot A = 1 / tan A

         = 12 /5

Therefore , the value of all six trigonometric ratio is equal to

sin A = 5/13 , cos A = 12/13, tan A = 5 / 12

cosec A = 13 /5 , sec A = 13/12 , cot A = 12 /5.

The above question is incomplete , the complete question is :

Find the value of each trigonometric ratio tan A

Figure is attached.

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When an article is sold for Rs 23, there is profit.
of 15%.
(i) क्र.मू. कति होला? (What is the cost price?)
(ii) 10% नाफा बनाउन सो सामान कतिमा बिक्री गर्नुपला ।।
At what price must it be sold to make a profit of
10%

Answers

Answer:

Cost price = R.S 20

Sales price = R.S 22

Step-by-step explanation:

Given:

Sales price of an article = R.S 23

Profit = 15%

Find:

Cost price

Sales price if profit is 10%

Computation:

Profit% = [(Sales price - Cost price) / Cost price]100

15 = [(23-cp)/cp]100

15cp = 2,300 - 100cp

115cp = 2,300

Cost price = R.S 20

Sales price if profit is 10%

Sales price = Cost price + Profit

Sales price = 20 + 10%[20]

Sales price = 20 + 2

Sales price = R.S 22

What is the slope of the line that contains the points (-3, -7/2) and (2, -4)

Answers

Answer: m = -1/10

Step-by-step explanation:

Use the slope formula to find the slope m.

m = −1/10

Three ballet dancers are positioned on stage. If Lauren is 6 meters straight behind Alexa and
8 meters directly left of Danielle, how far is Alexa from Danielle?

Help plz...
And No links!! I repeat No links!!

Answers

Answer:

d = 10 m

Step-by-step explanation:

Given that,

tLauren is 6 meters straight behind Alexa and  8 meters directly left of Danielle. We need to find the distance between Alexa and Danielle. It can be calculated using Pythagoras theorem such that,

[tex]d=\sqrt{8^2+6^2} \\\\d=10\ m[/tex]

So, the distance between Alexa and Danielle is 10 m.

Triangle ABC is shown,
B
А
Choose all of the statements that contain enough information to determine that triangle ABC is an equilateral triangle.
A. ZA ZB
B. ZA ZB 2C
C. m.ZA + m2C = 90°
D. AB = BC
E. AB = BC = AC

Answers

Step-by-step explanation:

Triangle ABC is usually followed the AB=BC = AC

The statements to determine that triangle ABC is an equilateral triangle are, ∠A ≅ ∠B, ∠A ≅ ∠B ≅ ∠C, AB = BC and AB = BC = AC.

What is a triangle?

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

We know, In an equilateral triangle, The length of all the sides are equal and the measure of all the individual angles is 60°.

Therefore, The statements that makes the given triangle ABC an equilateral triangle is,

∠A ≅ ∠B.

∠A ≅ ∠B ≅ ∠C.

AB = BC.

AB = BC = AC.

Q. Choose all of the statements that contain enough information to determine that triangle ABC is an equilateral triangle.

A. ZA ZB

B. ZA ZB ZZC

C. MZA + m2C = 90°

D. AB = BC

E. AB = BC = AC

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Help me solve this plz!!

Answers

Answer:

It’s graph B

Step-by-step explanation:

If you look at graph A, the y intercept will be at -3 instead of a negative 5.

Good luck!

It’s graph B I.think

Write the polynomial with roots 4, -3, and -6 (double root) with NO stretch factor

Answers

Answer: go to bitly and type

Step-by-step explanation: 3f3FcEi

What is an angle with 3 acute angles?

Answers

Three straight sides and three angles make up the shape of a triangle. The angles of a triangle can either be acute, right, or obtuse. An angle with three acute angles is a triangle where all three angles measure less than 90 degrees.

A triangle is a three-sided shape with three angles. The sum of the internal angles of a triangle is always 180 degrees. An angle is the amount of turn or change in direction between two lines. There are three types of angles, acute, right and obtuse. An acute angle is an angle which measures less than 90 degrees. A right angle is an angle which measures exactly 90 degrees, and an obtuse angle is an angle which measures more than 90 degrees. Therefore, an angle with three acute angles is a triangle where all three angles measure less than 90 degrees. A triangle with three acute angles is also known as an acute triangle. All three angles must add up to 180 degrees, so the measure of each angle must be less than 60 degrees.

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6.36 CAR COLORS Choose a new car or light truck at random and note its color. Here are the probabilities of the most popular colors for vehicles made in North America in 2000:5 Color: Silver White Black Dark green Dark blue Medium red Probability: 0.176 0.172 0.113 0.089 0.088 0.067 (a) What is the probability that the vehicle you choose has any color other than the six listed

Answers

The probability that the vehicle you choose has any color other than the six listed is 0.295.

In the given question, the probabilities of the most popular colors for vehicles made in North America in 2000 is given as:

Color:          Silver   White   Black   Dark green   Dark blue   Medium red

Probability:  0.176   0.172   0.113         0.089         0.088          0.067

We have to find the probability that the vehicle you choose has any color other than the six listed.

P(the probability that the vehicle you choose has any color other than the six listed) = 1 - (the sum of the vehicle that are listed)

P(the probability that the vehicle you choose has any color other than the six listed) = 1 - (0.176 + 0.172 + 0.113 + 0.089 + 0.088 + 0.067)

P(the probability that the vehicle you choose has any color other than the six listed) = 1 - 0.705

P(the probability that the vehicle you choose has any color other than the six listed) = 0.295

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can someone pls help me

Answers

Answer:

It is 159.1 in^2

Step-by-step explanation:

I hope that is useful for you

Ann says if you spin the spinner 80 times, it should land on red about 10 times. Do you agree with her? Explain.

Answers

yes it can be possible as per ur luck

Find the area of the figure.

Answers

Answer:

64 + 28 = 92

Step-by-step explanation:

Split the figure in half creating two triangles and a square.

length and width for the square would be 8ft and 8ft. Multiply both for 64 to be the area.

7ft and 4ft are the height and base for the triangles.

In this case, just multiple 7 and 4 because normally you would need to divide the product by 2 however since there are two triangles it negates the step.

Answer:

92ft^2

Step-by-step explanation:

you have to find the are of the triangle and subtract it from the area of the rectangle.

area of the triangle is 28ft^2

area of the rectangle is 120ft^2

120-28 =  92

what entry is 7 in the matrix below?

Answers

Answer:

B32

its goes 1 - 3 down and 1- 4 on top so go 3 down and 2 over - B 32

Help ASAP will give brainiest

Answers

Answer:

39 in the filmmaking club

25 in the yearbook club

Step-by-step explanation:

X =14+y

14+y + y = 64

14 +2y = 64

2y=50

y=25

if y is 25 then subtract 25 from 64 to get x

64-25=39

Why do we use log e?

Answers

log with base 10 is mainly used to simplify manual computation and it is also related to the decimal system. if we calculate the log of any variable with base 10, then an integer just greater than that calculated value gives the number of digits in that number.

likewise, log with base 2 is used in digital and computer applications where binary system prevails.

The worth of log e is around equal to 0.4342944819 where log e has a base value equal to 10.

1. The value of log e base 10 is around equal to 0.4342944819.

2. The value of log e with base e, that is, ln the e value is equal to 1.

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f(3) = V22
g(x) = 2x + 1
Find
(1) (a). Include any restrictions on the domain.

Answers

Answer:

may be that is not V that mau be some numbers

A researcher has collected the following sample data. The mean of the sample is 5 "3 5 12 3 2" Refer to Exhibit 1. The range is: O 1 O 2 O 10 O 12

Answers

The range of a sample data collected by a researcher is 10 . So, correct answer is option (C).

Range of a sample data is calculated by using the formula to determine the difference between the highest and lowest value in sample set of values.

R = Highest Value (H) - Lowest Value (L)

Range Formula, R = H - L

Where, R --> range

H --> the highest value

L --> the lowest value

We have, a reaseacher collected a sample data .

Sample data values are following,

3 5 12 3 2

The mean of sample data = 5

Range of sample data = highest data value - lowest data value

There is highgest data value = 12

and lowest data value = 2

Range = 12 - 2 = 10

So, the required range of sample data is 10.

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Complete question:

A researcher has collected the following sample data. The mean of the sample is 5

"3 5 12 3 2"

Refer to Exhibit 1. The range is:

A)1

B)2

C)10

D) 12

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