Find an equation for the nth term of the arithmetic sequence.
-20, -16, -12, -8, ...

Answers

Answer 1
common difference = -16-(-20) = 4
nth term = -20+(n-1)4
Answer 2

Answer:

-4

Step-by-step explanation:

that is the nth termmmmm


Related Questions

Nigel and Mia are searching for a treasure chest under water. The straight line distance between them is 100 meters.

A triangle has points Nigel, Mia, and Treasure Chest. The distance from Nigel to Mia is 100 meters. The angle between Treasure Chest, Nigel, and Mia is 65 degrees. The angle between Nigel, Mia, and Treasure Chest is 80 degrees.

Given the angles in the diagram, who is closer to the treasure chest and why?

Nigel is closer because his distance to the chest is opposite the larger angle.
Mia is closer because her distance to the chest is opposite the smaller angle.
Nigel is closer because his distance from the chest is 100 meters.
Mia is closer because her distance from the chest is 100 meters.

Answers

Mia is closer to the treasure chest because her distance to the chest is opposite the angle less than 80 degrees.

What is triangle?

A triangle is a polygon with three edges and three vertices. The sum of all the angles of a triangle is 180 degrees. Mathematically -

∠x + ∠y + ∠z = 180°

The sum of two sides of a triangle is greater then the third side. Mathematically -

a + b > c

The longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.

Given is a triangle that has points Nigel, Mia, and Treasure Chest. The distance from Nigel to Mia is 100 meters. The angle between Treasure Chest, Nigel, and Mia is 65 degrees. The angle between Nigel, Mia, and Treasure Chest is 80 degrees.

Refer to the image attached.

It can be seen that Mia is closer to the treasure chest because her distance to the chest is opposite the angle less than 80 degrees. We can conclude this from the fact that the longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle

Therefore, Mia is closer to the treasure chest because her distance to the chest is opposite the angle less than 80 degrees.

To solve more questions on triangles, visit the link below-

brainly.com/question/25950519

#SPJ6

Answer:

B

Step-by-step explanation:

I did it and it is correct

Which expression is equivalent to (4~6.44+

Answers

Answer:

700000-33

Step-by-step explanation:

gimmie a like ding for b+

If an item has an original price of $65, but is discounted 20%. What is the total cost after sales tax (.0825)?

Answers

Answer:56.29$

Step-by-step explanation:

65 x .80 = 52

52 x 1.0825 = 56.29

<Brainliest is appreciated!>

Answer:

$56.29

Step-by-step explanation:

Original price = $65

discount = 20%

hence discounted price =  100% - 20% = 80% of the original price

discounted price = 80% x $65 = $52

sales tax rate = 0.0825  (i.e 8.25%)

amount of sales tax paid

= 0.0825 x discounted price

= 0.0825 x $52

= $4.29

Final cost

= discounted price + sales tax

= $52 + $4.29

= $56.29

solve the equation 1/2y + 4=2

Answers

The answer is -4


STEP BY STEP EXPLANATION:
Multiply the whole equation by -2
You will get y = 8 + 4
Move that constant to the right
y = 4-8 calculate that
Your answer is -4 :)

20 points!!! Will mark brainlist to whoever gives me the correct answers with the work:)

Use the information below for Part A, Part B, and Part C.

f(x) = 1/2x -7

g(x) = 2x + 14

Part A: Find (fog)(x). Show your work.

Part B: Find (gºf)(x). Show your work.

Part C: Use your answers to Part A and Part B to determine whether the two functions are inverses. Explain your answer fully.

Answers

Answer:

(1/2(2x+14)-7) = 1x+7-7= x g(f(x))= 2(1/2x-7)+14= x-14+14= xWe have the result being two variables of linearity hence they are not inverses. In order to be inverses they should have had switched notations, ie: -x vs x

9514 1404 393

Answer:

  A:  (f∘g)(x) = x

  B:  (g∘f)(x) = x

  C:  the functions are inverses

Step-by-step explanation:

A: (f∘g)(x) = f(g(x)) = f(2x +14)

  = 1/2(2x +14) -7 = x +7 -7 = x

  (f∘g)(x) = x

__

B: (g∘f)(x) = g(f(x)) = g(1/2x -7)

  = 2(1/2x -7) +14 = x -14 +14 = x

  (g∘f)(x) = x

__

C: When a function is operated on by its inverse, then original argument value is restored. That is the case for functions f and g, so the two functions are inverses.

Jamila buys a pair of shoes for $22. She pays sales tax of 6.5% on the cost of the shoes. How much is the total cost of her shoes?​

Answers

Answer:

23.43

Step-by-step explanation:

22 + 6.5% = 23.43

How many proportional relationships are shown in the coordinate plane below?

Answers

Answer:

The answer is A) There are no proportional relationship

Step-by-step explanation:

The green line does not go through the origin and it is curved. This is not a proportional relationship.

Problems: It does not go through 0,0 and it is curved.

----------------------------------------------------------------------------------------------------------------

The blue line may go through the origin but it is curved. This is not a proportional relationship.

Problem: It is curved.

----------------------------------------------------------------------------------------------------------------

The purple line does not go through the origin. This is not a proportional relationship.

Problem: It does not go through 0,0

----------------------------------------------------------------------------------------------------------------

Conclusion: Since the green, blue, and purple line are not proportional, this means zero lines are proportional.

Note:

I know my answer is very late but I wanted to help anyone who needs it for future reference.

CAN SOMEONE HELP ME PLZ I NEED HELP

Answers

Answer:

1200 per time

Step-by-step explanation:

Evaluate: ab when a = 2 and b=4

Answers

Answer:

8

Step-by-step explanation:

ab = 2 * 4 = 8

Answer:

8

Step-by-step explanation:

ab when a = 2 and b = 4

First, plug in the values into the expression.

ab = (a)(b)

(2)(4)

When two numbers are set next to each other in parentheses, you are multiplying them.

2 × 4 = 8

Therefore, ab = 8

Hope this helps!

what's a good app to use for solving geometry ?​

Answers

Answer:

uhh I would say this one if people help u out atleats

This one should be a good one

add: 3xy -40xy + x (2+y)​

Answers

Answer:

x (y + 2) - 37 x y

Step-by-step explanation:

2 x (1 - 18 y)

-2 x (18 y - 1)

x (2 - 36 y)

Expanded form:

2 x - 36 x y

Roots:

x = 0

y = 1/18

Properties as a function:

Domain

R^2

Find f^-1(x) where
f(x) = 3x + 2 / x

Answers

Answer:

denoted interchange solve

Step-by-step explanation:

y= (2-x)/3 Let f(x) be denoted by y, thus y= -3x+2 Now interchange x and y, it becomes x= -3y+2 Solve for y, y= (2-x)/3 This is f^(-1) x

Jack tossed a coin three times. Which tree diagram shows all the possible outcomes of the coin landing heads up or tails up?

Answers

Answer:

The top three that are first :)

Step-by-step explanation:


Write 90 as a product of primes.

Answers

Answer:

hey i got that same qustiom=n but i ddint know how to do it

Mark borrows $2500. His loan is for 6 months and has a 12% interest rate.
How much interest will Mark pay on the loan?

Answers

Answer:

either 300 or 1800

Step-by-step explanation:

depends on if they are counting for one month or the whole 6 months.

Answer:

$150.00

Step-by-step explanation:

2500x.12x.5= 150.00


Given the inequality of x < 5, select all the
possible solutions that will make this inequality true.
Ua
7
b
5
Jc
8
d
-3
e
4
-1,245
0
Dh
6

Answers

nxnxnxbbxnxndnnsnsn nsnsnsndnnsndnndndnsndnndndnndnd

1. Captain Salamander has 3 pet frogs called Dorris, Borris and Morris. He weighs them to check they are the right weight. However, the frogs will only be weighed two at a time! Dorris and Borris weigh 12lbs altogether. Borris and Morris weigh 16lbs altogether. Dorris and Morris weigh 14lbs altogether. How much does each frog weigh?

Answers

Answer:

Their weights are:

Dorris = 5 lbs

Borris = 7 lbs

Morris = 9 lbs

Step-by-step explanation:

Let the weights of the frogs be:

Dorris = d

Borris = b

Morris = m

given:

d + b = 12 - - - (1)

b + m = 16 - - - (2)

d + m = 14 - - - (3)

from (3)

d + m = 14

m = 14 - d - - - (4)

putting the value of m into equation 2:

b + m = 16

b + (14 - d) = 16

b - d + 14 = 16

b - d = 16 - 14

b - d = 2

b = 2 + d - - - - (5)

putting the value of 'b' in equation 5 into equation (1)

d + b = 12 - - - (1)

where: b = 2 + d - - -  (5)

∴ d + (2 + d ) = 12

d + d + 2 = 12

2d = 12 - 2

2d = 10

∴ d = 10 ÷ 2 = 5

d = 5

putting the value of 'd' into eqn (5)

b = 2 + d - - - - (5)

where d = 5

b = 2 + 5 = 7

b = 7 lbs

to find 'm', let us use eqn (3)

d + m = 14 - - - (3)

where d = 5

∴ 5 + m = 14

m = 14 - 5 = 9

m = 9 lbs

Therefore their weights are:

Dorris = 5 lbs

Borris = 7 lbs

Morris = 9 lbs

express x^2 - 8x + 5 in the form (x - a)^2 - b where a and b are integers

Answers

Answer:

x^2 -8x + 5 = (x-4)^2 - 11

Step-by-step explanation:

Here we want to write the given expression in the form

x^2-8x + 5 can be written as follows;

(x-4)^2 = x^2 - 8x + 16

All we have to do is to subtract 11

Thus, we have it that;

x^2-8x + 5 = (x-4)^2 - 11

Simplify the expression by combining all the like terms 6+2x+5+4x

Answers

Answer:

6x+11

Step-by-step explanation:

6+2x+5+4x

4x+2x+6+5

(4x+2x)+(6+5)

6x+11

Answer:

6x +11

Step-by-step explanation:

group like terms (terms with the same variable and powers) together

(2x+4x) + (6+5)

6x +11

Which expression is equivalent to -4x - 36?

A. 4(x - 9)

B. 2(2x - 18)

C. -2(2x - 18)

D. -4(x + 9)

Answers

D. -4(x+9)

For this you distribute the number outside the parentheses to both numbers inside.

A. 4(x-9)=

4x-36

B. 2(2x-18)=

4x-36

C. -2(2x-18)=

-4x+36

D. -4(x+9)=

-4x-36

Therefore, D is the answer

Which equation in point-slope form describes the line that passes through the point (4,-5) and is perpendicular to
the line represented by
- 7x + 2y = 14?

Answers

9514 1404 393

Answer:

  D  y +5 = -2/7(x -4)

Step-by-step explanation:

The point-slope form is ...

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

You're given (h, k) = (4, -5), so the equation will be of the form ...

  y +5 = m(x -4) . . . . for some slope m

This form eliminates the first two choices.

__

The slope of the given line is the coefficient of x when solved for y:

  2y = 7x +14

  y = 7/2x +7  . . . .  slope is 7/2

The perpendicular line will have a slope that is the opposite reciprocal of this, ...

  -2/7 . . . . slope of perpendicular line

This is the slope shown in choice D:

  y +5 = -2/7(x -4)

D

Step-by-step explanation:

Factorise
21x squared - 14x​

Answers

Answer:

7x(3x - 2)

Step-by-step explanation:

[tex]21 {x}^{2} - 14x \\ \\ = 7x(3x - 2)[/tex]

The scale on a map is 1cm=30km the map distance between two town is 3.5cm

Answers

3.5x30=105 so 105km.

I NEED HELP FAST PLEASE !!!!!!!!!!! The grade of a hill steepness represented as a percent. Jim tracks his walking speed up different hills. What does the rate of change , or slope , represents in this situation a= the rate represents an increases in speed for each 1% b= the rate represents a decrease in speed for 1% grade c = the rate represents a decrease in speed for each 1% grade increase D= the rate represents no change in speed for each 1% grade decrease

Answers

Answer:

C

Step-by-step explanation:

slope=walking speed /%

negative slope

so that rules out a and d

and you can see that as the percent increases the speed decreases.

so I think It would be C.

Find the sum (7b -4) + (2b+ a + 1)

Answers

Answer: (9b + a - 3)

Step-by-step explanation: Good luck! :D

Answer:

a=9b-3

Step-by-step explanation:

In triangle EFG, the measure of angle E is 97 and the
measure of angle Fis 15° What is the measure of angle G?

Answers

The answer is 68.

Every triangle’s angle measures add up to 180. So you add 97 and 15 which equals 112, and then you subtract 112 from 180. 180-112= 68 so that is your final answer. I hope this helps:)

  By using triangle sum theorem in triangle EFG, measure of the unknown angle ∠G will be 68°.

Calculations for the measure of angles in a triangle:

Measures of the angles in a triangle has been given as,

m∠E = 97°

m∠F = 15°

By triangle sum theorem,

m∠E + m∠F + m∠G = 180° (Sum of interior angles of a triangle is 180°)

97° + 15° + m∠G = 180°

m∠G = 180 - 112

m∠G = 68°

  Therefore, measure of the third angle (∠G) of ΔEFG will be 68°.

Learn more about the interior angles of a triangle here,

https://brainly.com/question/22967199?referrer=searchResults

11 is what percentage of 16? Round the nearest tenth.

Answers

Answer:

.69, but you can round it to .70 because of the 9

Step-by-step explanation:

70%

Answer:

This can be calculated by dividing 11 over 16, which is equal to about 0.69.

Let me know if this helps!

Across what line of reflection was the angle reflected in the coordinate plane below?

Answers

It was reflected across the y axis

Answer:

Let us revise the reflection

If point (x , y) reflected across the x-axis, then its image is (x , -y)

If point (x , y) reflected across the y-axis, then its image is (-x , y)

If point (x , y) reflected across the line y = x, then its image is (y , x)

If point (x , y) reflected across the line y = -x, then its image is (-y , -x)

∵ Point A (-5 , 8) is reflected across the line y = x

∵ If point (x , y) reflected across the line y = x , then its image is (y , x)

∵ x = -5 and y = 8

- Switch x and y

∴ The image of point A is A' = (8 , -5)

I need help please ASAP

How many tiles are used to model “x+3” in x+3=7 and how did you know?

x- tiles:

3-tiles:

Answers

Answer:

Your answer

Step-by-step explanation:

X=4

x stands for an unknown number subtract 7-3=4

therefore... X=4

i'm in algebra one I know math.

HAVE A GREAT WEEK! :)

please check my answer!!!!!!

Answers

Answer: Its correct

Step-by-step explanation:

It is correct
Haobxhalbauabaapa a
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