An arithmetic sequence has first term a The 4th term of the sequence is ka, The 7th term of the sequence is 9a. Find the value of k​

Answers

Answer 1

Answer:

the value for k is 7 please do you get it


Related Questions

Lily bought a bag of gummy bears and ate one-third of them. The next day, she ate 16 more gummy bears. If she ate a total of 37 gummy bears, how many were originally in the bag?

PLZ GIVE ME STEP BY STEP EQUATION ASAP!!

Answers

Answer: 63 total gummy bears

Step-by-step explanation: 37 - 16= 21. 21 is the one third she ate. So 21 x 3 give you the original amount of gummy bears which is 63

Equation= 37 - 16 x 3= 63

Let that be x

[tex]\\ \rm\rightarrowtail x/3+16=37[/tex]

[tex]\\ \rm\rightarrowtail x/3=37-16[/tex]

[tex]\\ \rm\rightarrowtail x/3=21[/tex]

[tex]\\ \rm\rightarrowtail x=21(3)[/tex]

[tex]\\ \rm\rightarrowtail x=63[/tex]

Can someone help me on algebra

Answers

Answer:

[tex]f(3) = 1[/tex]

Step-by-step explanation:

I hope that is useful for you :)

Express 18 and 24 as product of their prime factors ​

Answers

Answer:

6

cuz 6*3=18 and 6*4=24

Answer:

18: 2x9 3x6

24: 12x2 6x4  8x3

So 2

Step-by-step explanation:

Is that what you mean?

What is the constant term in the expression 6׳y + 5× + 4
PLEASE HELP ME OUT I begging you guys p.s. if u give me the correct answer I'll give u brainillesst points

Answers

Answer:

the constant is x

Answer:

its 4

Step-by-step explanation:

Last one please help.

Answers

Is that Geometry cause I'm confused

Which of the following is the product of the rational expressions shown
below?
2/x • 3/2x - 5

Answers

Answer:

Step-by-step explanation:

6/ 2x2-5x

The product of the rational expression 2/x(3/2 x-5) is 3-10/x.

What is expression?

Expression is combination of numbers, fraction, symbols , coefficients, indeterminants or determinants. It shows a relationship between variables. It is mostly not found in equal to form.

How to find product?

We have been given an expression 2/x(3/2 x-5) and we have to find the product of the expressions.

Product=2/x*3/2 x-2/x*5

To find the product of the expression, we have to multiply numerators with numerators and denominators with denominators and then perform the division part.

=6x/2x-10/x

=3-10/x

Hence the product of the rational expression 2/x(3/2 x-5) is 3-10/x.

Learn more about expression at https://brainly.com/question/723406

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Press the hotspot next to the name of the learner who wrote an incorrect expression.

Answers

Answer:

Luis

Step-by-step explanation:

Simplify.

square root 1/18

A.) 1/6 square root 2
B.) 1/3 square root 1/2
C.) square root 1/2

100 points for the answer

Answers

Answer:

A

Step-by-step explanation:

[tex]\sqrt{\frac{1}{18} } =0.2357022604\\\frac{1}{6} \sqrt{2} =0.2357022604\\\frac{1}{3} \sqrt{x} =0.4714045208\\\sqrt{\frac{1}{2} } =0.7071067812[/tex]

The only one that is equal to square root 1/18 is 1/6 square root 2 therefore A is the answer

Answer:

√{1/18}=A.) 1/6 square root 2 and

B.) 1/3 square root 1/2

Step-by-step explanation:

√{1/18}=0.2357

A.1/6 √2=0.2357

B.1/3×(√1/2)=0.2357

C .√1/2=0.707

please help me and show your work pleaseeee

Answers

Answer:

There is no solution

Step-by-step explanation:

[tex]\frac{1}{4} x-13= \frac{1}{4} x + \frac{13}{4}[/tex]

subrtact 1/4 X from each side

-13=13/4 is not true, so no solution

Leah has just inherited $12,000. She wants to invest the money so that she can
increase the value of her inheritance. What are some of the ways she can do this?
1. Leah wants to invest the $12,000 in an account that pays 4.5% annual interest.
Part A
Write equations for the amount A(t) that will be in the account after t years, if the
interest is compounded continuously, daily, and monthly. Then, find the amount
after 10 years, rounded to the nearest cent, for each method of compounding.
Complete the table.

Answers

After 10 years rounded to the nearest cent Leah did her thing

When interest compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.

What is compound interest?

It is defined as the interest on the principal value or deposit and the interest which is gained on the principal value in the previous year.

We can calculate the compound interest using the below formula:

[tex]A = P (1 + \frac{r}{n} )^{nt}[/tex]

Where A = Final amount

         P = Principal amount

         r  = annual rate of interest

         n = how many times interest is compounded per year

         t = How long the money is deposited or borrowed (in years)

If the interest compounded continuously:

P = $12000, r = 4.5% = 0.045%

⇒ [tex]A (t) = 12000 (e)^{0.045t}[/tex]

When t = 10 years, plug this value in the above expression and calculating, we get;

A(10) = $18819.75

When interest compounded daily:

[tex]A(t) = 12000 (1 + \frac{0.045}{365} )^{365t}[/tex]

Plug t = 10 years:

We get;

A(10) = $18819.22

Similarly, If interest is compounded monthly:

n = 12 and t =10, we get:

A(10) = $18803.91

Thus, when interest compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.

Learn more about the compound interest here:

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The courthouse is the tales building in the city. If it is 7.5 inches tall in the model, how tall is the actual building? As part of a city building refurbishment project, architects have constructed a scale model of several city buildings to present to the city commission for approval. The scale of the model is 1 inch = 9 feet. Use this scale to answer the following questions.

Answers

Answer:

67.5

Step-by-step explanation:

i did it

i dont understand how to do this ​

Answers

Answer:

A

Step-by-step explanation:

since it is <= we know that it is including the possibility of being equal so it is not a dotted line leaving only A and B as options. since its is <= it must be on the as the x increases the y must decrease. so the answer is A.

you can estimate the number of days in the three months of april,may,and june using the eqation 3x30=90 what is the exact number of days in the three months

Answers

Answer:

Step-by-step explanation:

Donna's Garden Supply wants a 3-month moving-average forecast, including a forecast ... 3-Month Moving Average. January. February. March. April. May. June. July ... arbitrary because there is no set formula to determine them. ... ÈPO CH Compare the actual data with the data we forecast (using each of the two a values).

The area of a circle is 4pie cm2. What is the circumference, in centimeters? Express
your answer in terms of .

Answers

Answer:

4[tex]\pi[/tex]

Step-by-step explanation:

A = [tex]\pi[/tex][tex]r^{2}[/tex]

A = 4[tex]\pi[/tex] [tex]cm^{2}[/tex]

4[tex]\pi[/tex] =

4 = [tex]r^{2}[/tex]

2 = r

C = 2[tex]\pi[/tex]r

C = 2(2)[tex]\pi[/tex]

C = 4[tex]\pi[/tex]

Simplify the given expression below:

(3 + 4i) + (5 - 2i)

1) -2 + 6i

2) 2 - 2i

3) 7 +3i

4) 8 + 2i

Answers

Answer:

4) 8+2i

Step-by-step explanation:

When you expand you get 3+4i+5-2i

when you add the like terms you get 8+2i

Answer:

3

Step-by-step explanation:

The answer is 3 3+4 is 7 and 5-2 is 3

The cost of a table is double the cost of a chair and the cost of a cupboard is five times the cost of a table. What is the ratio of the cost of the chair table and the cupboard? If the cost of a table is greater than that of a chair by rupees 2000 find the cost of a chair, table and the cupboard.​

Answers

Answer:

Table 2: 1 Chair

Cupboard 5: 1 Table

Cupboard 10: 1 Chair

The table costs 4,000 rupees, the chair 2,000 rupees, and the cupboard costs 20,000 rupees.

Step-by-step explanation:

Since the cost of a table is double the cost of a chair and the cost of a cupboard is five times the cost of a table, to determine what is the ratio of the cost of the chair, the table and the cupboard the following calculations must be done:

Table 2: 1 Chair

Cupboard 5: 1 Table

5x2 = 10

Cupboard 10: 1 Chair

In turn, if the cost of a table is greater than that of a chair by 2000 rupees, to find the cost of a chair, table and the cupboard, the following calculations must be performed:

Table 2: 1 Chair

2000 x 2 = 4,000

Thus, the table costs 4,000 rupees and the chair 2,000 rupees.

4000 x 5 = 20,000

In turn, the cupboard costs 20,000 rupees.

You spin a spinner and pick a card. How many outcomes are possible?

Answers

It's just 5 * 4 which is 20.

It’s 20, hope this helps :))

What is the area of a circle if the diameter is 9cm?
Round to the nearest hundredth (0.01cm2)

Answers

Answer: A≈63.62

Step-by-step explanation:

9/2= 4.5

A=πr2=π·4.52≈63.61725

Answer:

To find the area of a circle we have [tex]\pir^{2}[/tex] and the radius is half of the diameter so we have 4.5² which gives 16.25π

( guys this question is a music question it’s not a math question i just put math subject because they didn’t have music subject!! )

In terms of rhythm, notes are named for ...

A. how they look.
B. how long they last.
C. how fast they are.
D. how high or low-pitched they are.

Answers

B. How long they last.

Brainliest plz

Answer:

i think its d

Step-by-step explanation:

ok Im pretty sure this photo is clearer​

Answers

Answer:D or C

Step-by-step explanation:

I think it’s d because Martha has a range of 7 and Alicia is 6

An airplane is flying at 450 miles per hour. How many yards does the airplane fly in 30 min?

Answers

Answer:

the plane flies 396,000yd in 30 min

Step-by-step explanation:

450 / 2 = 225

1 mile = 1,760

225 * 1,760 = 396,000 yd

Plz mark as brainliest if this helped! Have a nice day!!!

-Lil_G

Step-by-step explanation:

450 miles = 1hour = 60mins

X miles = 30mins

cross multiply

450 × 30 = 60 × X

13500 = 60X

divide through by 60

225 = X

therefore, X = 225miles

now

1 mile= 1760 yards

225 miles = X

cross multiply

X = 1760 ×225

X = 396000 yards

what is pi and how invented it??

Answers

Answer:

Step-by-step explanation:

The Egyptians calculated the area of a circle by a formula that gave the approximate value of 3.1605 for π. The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.

Answer:

π is a mathematical constant. Its commonly used value is 3.14. There is a expanded value for π. It appears in many formulas in all areas of mathematics and physics. In maths, it is commonly used for solving of circles and spheres.

The π was invented by Archimedes of Syracuse. He was one of the greatest mathematicians of the ancient world.

PLS HELP FAST ILL GIVE BRAINLIEST
When y=48, x=4.2. If the value of y varies directly with x, what is the value of y when the value of x is 10.6?

Answers

i used ratios which i get that y=121.14 not sure tho

Answer:

y = 121.14

Step-by-step explanation:

For this, we will need to start by cross multiplying.

(4.2 * y) = (48 * 10.6)

4.2y = 508.8

to isolate the varible, we need to divide both sides by 4.2

y = 121.14

Plzzz help me 10 min left​

Answers

Answer:

D

Step-by-step explanation:

The opposite of negative is positive therefore,

the opposite of -2 is positive 2.

2 is locaded at D.

State whether the diagonals of each figure bisect each other
A: Parallelogram yes no
B: Square yes no
C: Kite yes no
D isosceles trapezoid yes no

Answers

I am not 100% sure.
A: yes
B: yes
C: yes
D: no

original price $135; 30%​

Answers

Answer:

40.5

Step-by-step explanation:

dividing

Yes it is 40.5 he is right

A man is 32 years older than his son. Ten years ago he was three times as old as his son. find the present age of each?​

Answers

The answer to this equation is 17

z scores are useful because they:a. allow us to convert raw scores to mean scores, compare scores from different samples, and transform populations into samples.b. transform linear scores into nonlinear scores, convert nonlinear scores back into linear scores, and allow us to obtain comparisons between nonlinear and linear scores.c. give us an understanding of where a score falls in relation to the mean of its underlying population, allow comparisons to be made between scores from different distributions, and permit the transformation of z scores into percentiles.d. reduce the probability of Type I and Type II errors, allow us to compare raw scores with standard scores, and permit the transformation of raw scores into percentiles.

Answers

Answer:

they give us a sense of where a score falls in relation to the mean of its population (in terms of standard deviation of its population), 2) they allow us to compare scores from different distributions, and 3) they can be transformed into percentiles.

Step-by-step explanation:

A car dealership offers two choices of discount on a car with a sticker
price of $35,000. Choice A: $5,000 rebate Choice B: 14% discount Which
is the better deal for the custonser?

Answers

Choice A is better.
A $5,000 rebate would bring the total to $30,00, while B only brings it to $31,000

------------Need help ----------
Y=3x-2

Answers

Answer:  -8, -5, -2, 1, 4

Step-by-step explanation:

Y=3x-2

- Plug in the number for x.

x = -2, y = 3x - 2= 3(-2) - 2 = - 6 - 2= - 8

x = -1, y = 3x - 2= 3(-1) - 2 = - 3 - 2= - 5

x = 0, y = 3x - 2= 3(0) - 2 = 0- 2= - 2

x = 1, y = 3x - 2= 3(1) - 2 = 3 - 2= 1

x = 2, y = 3x - 2= 3(2) - 2 = 6 - 2= 4

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