Mathematics Middle School

Find the 88th term of the arithmetic sequence 21, 15, 9
and step by step how you solved it

Answers

Answer 1

Answer:

-501

Step-by-step explanation:

The given sequence is :

21, 15, 9, ...

Finding the common difference (d)

d = Term - previous term d = 15 - 21d = -6

Formula for the nth term of a sequence

aₙ = a + (n - 1)da = first term = 21 (in this case)n = number of termsd = common difference = -6

Taking n = 88 as we are asked to find the 88th term :

a₈₈ = 21 + (88 - 1)(-6)a₈₈ = 21 + 87(-6)a₈₈ = 21 - 522a₈₈ = -501

Related Questions

Geometry Question. Please help!

Answers

Answer:

52

Step-by-step explanation:

Area of trapezium +area of triangle

1/2h(a+b) + 1/2×b×h

=1/2×8(3+7) + 1/2×8×3

=4(10) + 4×3

=40 + 12

=52

Write a positive or negative integer that represents the situation.

Answers

Step-by-step explanation:

Here we have got 30 dollars so , it will be a positive sort of thing

The positive integers which represents the situation is +30dollar

I agree with the guy on the top. I learned that this year :) so I know this.

Please help with Oregon trail: Percents.

Answers

Well 56% of 816 is 456.96 so you will have to double

Please help!- Give an example of two different sets of data, in which both box plots have the same range and IQR and yet represent completely different data. Explain.

Answers

Answer:

set 1 and 2

Step-by-step explanation:

Set 1 has 10

Set 2 has 13

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!! 45 POINTS!!!!!!!!!!!!!!!!!!!!!

Answers

Answer 23 hope this has helped

. please help me! and provide a CLEAR step by step explanation! tysm!
also giving out brain to good explanations and first answer correct

Answers

Answer:

182.25

Step-by-step explanation:

An online retailer allows customers to rate items on a scale from −5 to 5. An item receives the scores below.

−1.75, −1.5, 4, −4.25, 3.75, 1.25, 2

Find the mean score. Write your answer as a decimal.

The mean score is (BLANK)

Answers

Answer: 0.5

Step-by-step explanation:

You have to add up all the scores then divide the total by how many sets of numbers there are, Ex; In this question, there are 7 sets of scores, so you divide the total by 7

Equation: -1.75 + (-)1.5 + 4 + (-)4.25 + 3.75 + 1.25 + 2 = 3.5

3.5  ÷ 7 = 0.5

Hope this helped!

show work on how to match them

Answers

9.A
10.C
11.B
12.D
to find circumference you do C=D times pi if you are given the radius then you double the radius to get the diameter and do the equation
Answer:

C≈53.4 units

C≈28.3 units

C=20.4 units

C=75.4 units

Solution:Circumference of a circle:C=πdOrC=2πrwhere π=3.14...d=diameterr=radiusPlug in the values:C=2π(8.5)C=17πC≈53.4 (match "radius=8.5 units" to "53.4 units")C=π(9)C≈28.3 units (match "diameter=9 units" to "28.3 units")C=π(6.5)C=20.4 units (match "diameter=6.5 units to "20.4 units")C=2πrC=2π(12)C=24πC=75.4 units (match "radius=12 units" to "75.4")

Hope it helps.

Do comment if you have any query.

answer this...13 points

Answers

Answer: 3 whole cupcakes

Step-by-step explanation:

3 halfs, 2 of those make 1, then you have 1 half left and 2 quarters, 2 quarters make one more half, then those two remaining halves make a whole which leaves you with 3

The answer is 3 whole cupcakes

Can you help thank you i will give branlyist if you are correctt

Answers

Answer:

I put the color next the the coordinates so you know which dot is whitch

Step-by-step explanation:

Help me plss i'm stuck on this on this question.

Answers

she completed roughly 82% of her goal

Answer:

A

Step-by-step explanation:

Well she made 29 miles

35-29 is 6

6/35 =.171.......

You just move the decimal points as many times until it makes sense. so you move it over twice then bam you get 17.1 so its A

Please help. What is the area of the shape:

Answers

Answer:

Either 150 or 80.

Step-by-step explanation:

You would do hight x base which is 150 if you do 7 + 8 x 10 and it's 80 if you do 10 x 8. If it's not squared then you don't have to divide by 2.

Calculate the area as a full rectangle and subtract the triangle corner that is cut off.


10 x 15 = 150 square feet

1/2 x 7 x 7 = 24.5 square feet


Area = 150 - 24.5 = 125.5 square feet


answer: 125.5 square feet

CAN SOMEONE PLS HELP ME PLSSS I HAVE TO GET IT DO BEFORE TONIGHT ( ill give a brainliest to fill the worksheet out plss) (no point stealing) ( 100 points) PLS HELP

Answers

I can try and help but what’s the problem?

Please answer these if u know them I will give u brainliest the answer must include evidence I need the answer ASAP

Answers

Answer: 2

Step-by-step explanation: Q3 - Q1 = IQR

7-5=2

Iqr = 2

please help me ASAP
Thx have a great day.

Answers

Answer:

I think it is b

Step-by-step explanation:

I'm pretty sure I did this quiz

I think it’s B because it’s a little of the line and at first I was going the first one but now I’m thinking B

Robbie spends $0.50 a day riding the bus. He rides the bus 5 days a week. Which expression shows how much Robbie spends on the bus every week?

A. $0.50 + 5
B. $0.50 - 5
C. $0.50 x 5
D. $0.50 ÷ 5

Answers

Answer:

C

Step-by-step explanation:

If he rides the bus 5 days a week, you would take the ammount of money for 1 day, and times it by 5. Giving you the answer C.

C because if he rides the bus 5 days a week and each day he spends .50 the equation would be $0.50x5

the number of people that attended a town meeting each month for 8 months is shown below 126, 88, 94, 102, 76, 120, 114.
what is the median attendance
A:88 C:98
B:89 D:101

Answers

C

I’m not sure if it’s correct though


NEED IT ASAP PLEASE AND THANK YOU

Answers

Answer:

on the x grid find 7.5 in-between 7 and 8

then go up until 6.5 in-between 6 and 7

hope it helps

Answer:

no answer explainable

Step-by-step explanation:

To plot the point where you are working, you go to the numbers below and find 4.5, between 4 and 5. Then you go up to 5.5, or in between 5 and 6. That is the spot where you are working. To plot the point of the groundhog you do the same thing, go to 7.5 on the bottom numbers, and go up to 6.5 to find where the groundhog is.

PLEASE HELP select the dot plot with the greatest variability

Answers

The answer is B, it’s because there is more dots scattered throughout that graph

PLEASE HELP!
Describe and correct the error in finding a solution of the equation in two variables.
y= 3x + 2; (5,1)
5 (? right on top of this) = 3 (1) + 2
5 = 5
So, (5,1) is a solution.

Answers

Answer:

Step-by-step explanation:

y=3x+2

3x+2=y

3x/3=y/3

2=y/3

2=6/3

The answer is 2=6/3 !

can you help im kinda in a hurry this was due yesterday please help all give branlyist if corectt

Answers

Answer:

sorry I didn’t answer for ya yesterday day but here you go

A(1/2, 2 1/2)

B(1/2, 3 1/2)

C(1/2, 5)

D(1/2, 4 1/2)

Step-by-step explanation:

hope this helps you !

please help. what is the area of the figure?

Answers

Answer:

I believe it is 750

Step-by-step explanation:

l x w x h = A

5 x 6 x 10 = 300

5 x 5 x 18 = 450

450 + 300 = 750

I think the answer to the problem “what is the area of the figure?”is 750

What happens after coral is bleached?

The coral dies immediately.

The coral is susceptible to starvation.

The coral produces peroxides.

The coral releases algae into the ocean.

Answers

Answer: B

Hope this helps! :)

Answer:

the coral is susceptible to starvation.

Step-by-step explanation:

A. Find the volume of the cylinder to the nearest thousandth
B. Find the surface area of the cylinder to the nearest thousandth

Answers

Answer:

See Below

Step-by-step explanation:

For Volume:

V = πr^2h

V = π * 1^2 * 15

V = 47.124 cm^3

For Area:

A = 2πrh+2πr^2

A = 2 * π * 1 * 15 + 2 * π * 1^2

A = 100.531 cm^2

There are 364 people that have to go from the airport to the hotel. One van can transport 12 people. How many vans are needed?

A. 4
B. 30
C. 31
D. 32

Answers

Answer:

30

Step-by-step explanation:

all you need to do is divide please let me know if the answer is incorrect

Answer:

Technically speaking: 31. (Or C.)

Step-by-step explanation:

We can solve this quite simply by dividing 364(amount of people) by 12(amount of people per van).

Which would look like this: 364/12=30.3333

The reason being for it being 31 and not 30 is because you would need one extra van to take the remaining 4 people that was not picked up by the 30th van, otherwise only 360 people would've been picked up.

I NEED HELP WITH NUMBER 9 ASAP PLS HELP I NEED STEP BY STEP

Answers

Answer:

B) 14.50

Step-by-step explanation:

I hope this helps. If not let me know and I will help you with what you need!

Please help needed its due soon

Answers

Answer:

its too small but what i can tell you is that this is k12 right?

Step-by-step explanation:

Larry has the option of planting tulips, daisies, or lilies, and he can use dark or light mulch. How many different kinds of flower beds can he design?

6
5
3
2

Answers

the answer is 3 bc he has three different kinds of flowers
3 the types of flowers x 2 the types of mulch so you get 6

Submit your graph with your work.
Type in one possible solution to the system.
Question 11
0.5x-y≥3
x+y<3

Answers

Answer:

x ≥ 4

y ≤ -1

x = 4 and y = -1 are the first set of values that can satisfy both conditions.

Step-by-step explanation:

Answer:

.....

Step-by-step explanation:

Write an expression that represents the difference of (4x + 2/3y) and (4/12y - 8.7x)

Help

Answers

Answer: 1/30x (381x+10y)


Explanation:

(4x + 2/3y) - (4/12y - 8.7x) = 12.7x+1/3y

Convert 12.7x in the difference to a fraction, which is 127/10x.

Factor out 1/30 from 127/10x + 1/3y


Solution: 1/30x (381x+10y)


12.7x+1/3y
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