What is the 18th term of the arithmetic sequence 2, -2, -6, -10, ...?

Answers

Answer 1

Answer:

-66

Step-by-step explanation:

-4n+6

-72+6

-66

might not be right thk

Answer 2

Answer:

- 66

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = a₂ - a₁ = - 2 - 2 = - 4, thus

[tex]a_{18}[/tex] = 2 + (17 × - 4) = 2 - 68 = - 66


Related Questions

what is 7/9 divided by 1/3? A.2 B.2 1/9 C.2 1/3. D.3​

Answers

Answer:

It would be 2 1/3!

Step-by-step explanation:

Pleaseeeee help me with number 7 I will give Brainly to whoever comments the answer right

Answers

Answer:

- to find r3 multiply 1700 by itself 3 times

- r3 is 4913000000

- multiply by pi

- the units are kilo meters cubed

Step-by-step explanation:

ugh i suck at math but here goes, sorry if it was wrong :)

A square has a perimeter of 52ft. What is the length of each side?

Answers

A square has all sides equal to each other and 4 sides. 52/4 is 13 so each side length measures 13

7. A square has an area of 20 square feet. What is the length of a side of
the square, in feet?

Answers

Answer:

5

Step-by-step explanation:

There are 4 equal sides on a square so 20/4 which is 5.

Hope this helps plz mark brainliest :D

Answer:

2√5

Step-by-step explanation:

Since all the sides of a square are the same, we can take the square root of the area.

√20 = 2√5

Best of Luck!

Part 1

A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 250 yards long. How many yards is the length of the park?


Part 2

Use your answer from part 1 to solve the following problem.


A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 250 yards long. What is the area of the actual park?


someone please anwser ASAP its due today

Answers

Answer:

Part 1

If the actual park is 250 yards LONG, I think it means that its LENGTH is also 250 yards

Part 2

It's a proportion:

5=x

7=250

5*250:7=178.6 yards

The area is 178.6 yards wide and 250 yards long

Step-by-step explanation:

Round the number shown to the underlined place value 7.657

Answer choices
a.7.66
B.7.66
C. 7.67
D.7.68

Answers

the answer is A. 7.66 and B. which is also 7.66

What is the rise Run and Slope ?

Answers

Answer:

A. 2/5

C. 5/5 or 1

Step-by-step explanation:

A. Rise = 2

   Run = 5

C. Rise = 5

   Run = 5

-6/-3 please give explanation

Answers

Answer:

2

Step-by-step explanation:

Remember the rule with negatives. -x/-y=x/y

So -6/-3=6/3

6/3=2

-6/-3= 2......................................

2) Anna bought 31 items at the grocery store. There was a glitch in the
computer system that caused the processing of the payment to take
longer than usual. If the total time for Anna's transaction took 2
minutes, how much time did the processing of the payment (p) take?
A)
60 seconds
B)
58 seconds
50 seconds
Eliminate
D) 45 seconds
See

Answers

A or b I think not sure

Answer:

B

Step-by-step explanation:

a bag of popcorn contains 483 calories and serves 3.5 people. How many calories are there per serving

Answers

Answer: 138 calories.

Step-by-step explanation:

Answer:

138 calories per serving

Step-by-step explanation:

Tim travels an average speed of 80km per hour for 3 hours 45 minutes.
work out how many kilometres Tim has traveled.

Answers

tim would’ve traveled 300 kilometers.

Answer:

300 kilometers.

help pleaseee , don’t really know how to do this :)

Answers

Answer:

x= -p+q+y

Step-by-step explanation:

-x on each side

y-x=p-q

-y on each side

-x=p-q-y

÷everything on both sides by ‐1

We have to divide by -1 because x can't be negative

x = -p+q+y

I really hope this is right because I don't want to let you down.

-LampteyJ

Match the correct graph to the story below.
You get two movies free, but then you get charged at a fixed rate per movie.
x = the number of movies seen.

y = the total money spent in dollars.

Answers

Answer:

D

Step-by-step explanation:

you have seen 2 movies before starting to go up in spending money

Segment AB with length 2.4 cm is dilated with a scale factor of 3. What is the new length of segment AB?
A. 0.8 cm
B. 2.4 cm
C. 5.4 cm
D. 7.2 cm

Answers

2.4/3 is 0.8 so 0.8 centimeters is the final answer.

Which expression is equivalent to: (x +9)(x+3)
a. x2 + 6x + 6
b. x2+27x+12
c. x2+ 12x+27
d. x2+ 12x + 12

Answers

Answer:

c

Step-by-step explanation:

x*x=x^2

x*9=9x

x*3=3x

9x+3x=12x

9x3=27

x^2+12x+27

Answer:

C

Step-by-step explanation:

To solve use the FOIL method, First, Outside, Inside, Last. This means to multiply the first terms, the ones on the outsides, the ones on the insides, and finally the last ones.

First, multiply x*x= [tex]x^{2}[/tex]

Then, multiply x*3= 3x

Next, multiply 9*x= 9x

Finally, multiply 9*3= 27

To simplify put all of the products together, [tex]x^{2}[/tex]+3x+9x+27, then add like terms [tex]x^{2}[/tex]+12x+27, so the answer is C.

How many solutions does the system have?
You can use the interactive graph below to find the answer.
4x – 6y = -24
2x – 3y = -6

Answers

It’s has NO SOLUTION.

1 7/8 + 1/9 please answer quick

Answers

Answer:

Exact Form:

143/72

Decimal Form:

1.986

Mixed Number Form:

1 71/72

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Which scatterplots have clusters? Check all that apply.

Answers

Answer:

the second one

there like all togehter

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

Just did on edge2021

Excellence Middle School charges $7.50 for students from all grade levels to attend the school dance. If s represents the number of seventh grade students who came to the dance and g represents the number of eighth grade students at the dance, which expression best represents the total amount of money collected for attendance at the dance?

a 7.5s+g
b s+7.5g
c 15(s+g)
d 7.5(s+g)

Answers

Answer:

the answer is c

Step-by-step explanation:

Can y’all help me please

Answers

Answer:

What is the question and possible answers

Step-by-step explanation:

Answer:

What you need help with

Step-by-step explanation:

Tell me in the comments below so i can answer like do you need help solving? help learning how to solve? Tell me.

Will mark as brainleist

Please help!

Answers

Answer:

y=10x-2

Step-by-step explanation:

-2 is the y-intercpt

Answer:

y=4/3x-2

Step-by-step explanation:

Find the lengths of the sides of the triangle if the vertices of EFG are E(-2,-3), F(-2,2) and G(3,2). Find the lengths of FG

Answers

Answer:

FG=5

Step-by-step explanation:

Use distance formula FG=√(3+2)² +(2-2)²=√25=5


What is the rate of change for the table to the right?
A)7
B)12
C)17
D)19

Answers

The answer is b 12 because y goes up by 12 ever time x goes up by one
B is correct I think tell me if wrong

Factor and find the zeros k^2+7k+12

Answers

Answer:

(k+3)(k+4)

The zeros are -3 and -4

Step-by-step explanation:

k2+7k+12

The middle number is 7 and the last number is 12.

This means we need two numbers that:

Add together to get 7

Multiply together to get 12

to fit in this equation (k+_)(k+_)

in this equation, it would be 3 and 4

3+4 = 7

3*4 = 12

Now we fill in the blanks to get

(k+3)(k+4)

To get the zeros, use the equations

k+3=0 and k+4=0

You end up with

k=-3 and k=-4

Write an equation in slope-intercept form of each line.

Answers

Answer:

y=2x-3  

Step-by-step explanation:

formula: y=mx+b

since it is a partial variation use b in formula

Tell whether the function y = 5x − 2 is linear.

Answers

Answer:

Step-by-step explanation:

Yes, it is a linear equation

Answer:

Yes, it is Linear

Step-by-step explanation:

This is the answer because A linear equation is an equation of a straight line, which means that the degree of a linear equation must be 0 or 1 for each of its variables. In this case, the degree of variable y is 1 and the degree of variable x is 1.

Hope this helps!

PLEASE HELP ME
9. A water pail in your backyard has a small hole in it. You notice that it has drained a total of 3.5 liters in 4 days. What is the average change in water volume each day?

10. The price of one share of ABC Company declined a total of $45.75 in 5 days. What was the average change in the price of one share per day?

11. To avoid a storm, a passenger-jet pilot descended 0.44 miles in 0.8 minutes. What was the plane’s average change of altitude per minute?

Answers

Answer: 9-11 below

Step-by-step explanation:

9. Well, we're given that the hole drains color(red)(3.5color(white)(l)"L" in color(green)(4color(white)(l)"d", so we can write the rate as

(color(red)(3.5color(white)(l)"L"))/(color(green)(4color(white)(l)"d"))

Now we perform this division, and afterward the denominator will be 1 and thus it will tell us the number of liters drained per day:

(color(red)(3.5color(white)(l)"L"))/(color(green)(4color(white)(l)"d")) = color(blue)(ulbar(|stackrel(" ")(" "(0.875color(white)(l)"L")/(1color(white)(l)"d")" ")|)

Therefore, color(blue)(0.875color(white)(l)"liters" are drained every day on average.

10. $

9.25

decrease per day

Explanation:

We can divide the total price decrease by the number of days it took to reach that decrease to find the average decrease per day:

$

45.75

5

=

$

9.25

decrease per day

11. The average change of altitude per minute would simply be the ratio of distance descended over time. That is:

average change of altitude = distance / time

average change of altitude = 0.44 mile / 0.8 minutes

average change of altitude = 0.55 mile / minute

If f(x)= -1x2+3, find f(1)
Someone help me, I'm so confused ;-;

Answers

Answer:

-1×(1)×2+3=1 This is the answer I think

help me out with these questions please? 5+ 3x = 8 and also 3x - 6 =9

Answers

Answer:

1st problem-X=1, 2nd problem-X=3

sorry if this isn't right..

Answer:

x=1 and x=5

Step-by-step explanation:

5+3x=8

-5 -5

(3x=3)/3

x=1

________

3x-6=9

+6 +6

(3x=15)/3

x=5

HELP ASAP, ILL GIVE BRAINLIET BUT PLEASE BE RIGHT
Given the graph below draw a line of best fit.
Gve two points on the line.

Answers

Answer:

(1,4) and (9,9)

Step-by-step explanation:

they form a straight line -- you can check with a ruler when going through these points.

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