Which equation represents the nth term of the sequence {2,1,-4,-7...}.

a n =2n-5
a n=3n-1
a n=-3n-10
a n=-3n+5

Answers

Answer 1

Answer:

n=-3n+5

Step-by-step explanation:

Answer 2

Answer:

D

Step-by-step explanation:

I can only answer this if the second term is -1

a = 2

d = -3

t_n = a + (n - 1)*-3

t_n = 2 + -3n + 3

t_n = 5 - 3n      or

t_n = - 3n + 5

That's D


Related Questions

Extra Example 2
A 6-pound bag of cat food costs $12.84.
A 16-pound bag of cat food costs $33.92.
Which bag of cat food is the better buy?
Bag is the better buy; because
it costs per pound and bag
costs
per pound
Replace the line
with the correct
answers

Answers

A 6-pound bag of cat food is the better buy, because it costs $2.14 per pound and bag costs $12.84.

I got $2.14 by dividing 6 from $12.84.

However, I don’t know if it’s correct, but I hope you get the answer correct.

$400 at 6.4 for 2 years

Answers

Answer:

wdymmmmmmmm????????

I GIVE BRAINLILSET


Janelle baked 25 cookies with 5 scoops of flour. With 12 scoops of flour, how many cookies can Janelle bake? Assume the relationship is directly proportional.

Answers

Answer:

60

Step-by-step explanation:

25÷5=5

5×12=60

have a great day! :)

Answer:

60

Step-by-step explanation:

We are given:

25/5 = 5

Since the relationship is directly proportional,

x/12 = 5

Multiply both sides by 12 to isolate x:

x = 60

Choose the system of equations which matches the following graph: (5 points)

Answers

Answer:

-5x + y = -7

2x + y = 0

Step-by-step explanation:

Equation of the line that slants upwards from left to your right:

The slope (m) = rise/run = (5/1) = 5

Using a point on the line, (2, 3) and the slope, substitute x = 2, y = 3, and m = 5 into y = mx + b to find the value of b.

Thus:

3 = 5(2) + b

3 = 10 + b

3 - 10 = b

-7 = b

Substitute m = 5 and b = -7 into y = mx + b

First equation of the system would be:

y = 5x - 7

Rewrite, you'd have:

-5x + y = -7

Equation of the line that slants downwards from left to your right:

Slope (m) = rise/run = -(2/1) = -2

y-intercept, b = 0 (the point where the line intercepts the y-axis)

Substitute m = -2 and b = 0 into y = mx + b.

y = -2x + 0

Rewrite, you'd have:

2x + y = 0

✔️The equations of the system are:

-5x + y = -7

2x + y = 0

find the slope of
y=-x+7

Answers

Answer:

Slope = -1

Step-by-step explanation:

There is ways a 1 in front of an x if there is no other number

It would be -x aka -1 because x is just technically a 1 and because the x is negative so is the 1

prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A​

Answers

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

[tex]\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)}[/tex] ← expand numerator/denominator using FOIL

= [tex]\frac{1-sin^2A}{1-cos^2A}[/tex]

= [tex]\frac{1-(1-cos^2A)}{1-(1-sin^2A)}[/tex]

= [tex]\frac{1-1+cos^2A}{1-1+sin^2A}[/tex]

= [tex]\frac{cos^2A}{sin^2A}[/tex]

= cot²A = right side , thus proven

please answer this 3/4 of x=16 find x​

Answers

Answer:

12

Step-by-step explanation:

Solve the equation. −2 1/4=r−4/5 will give brainiest for the first correct answer!!!

Answers

Answer:

r = -1 9/20

Step-by-step explanation:

-2 1/4 = r - 4/5

Switch sides:

r - 4/5 = -2 1/4

Add 4/5 to both sides.

r = -2 1/4 + 4/5

Change the mixed numeral into a fraction:

r = -9/4 + 4/5

The LCD is 20.

r = -45/20 + 16/20

r = -29/20

r = -1 9/20

If there are 80 calories in 2/3 of an apple, How many calories are in 6 apples?

Answers

Answer:

Around 570 to 560.

Find the value of the variable in the figure provided.
x=22

x=4

x=16

x=17

Answers

Answer:

x=17

Step-by-step explanation:

2*17=34

34-7=27

5*17=85

85-58=27

this is what i need help with so please help

Answers

Answer:

The temperature farthest from zero is 5

Step-by-step explanation:

the reason for this is because it doesn't matter whether that temperature is negative or positive because all the question is asking is...."how far from zero"....and would -4 be farther from zero....or would 5 be farther from zero.  How I know this is absolute value is always positive.  And absolute value of -4....is 4.....and absolute value of 5....is 5.

And 5 is 1 temperature more away from zero than -4.

Answer:

5 is the farthest from 0

-4 is the coldest temperature

5 is the warmest temperature

Step-by-step explanation:

The farthest from 0 could be negative or positive. It's just whichever one has the greatest absalute value (if you know that term, if not...), whichever one you would put up more fingers to count to.

In this case, according to the number line, the farthest from 0 into the nagatives is -4, but the farthest from 0 in the positives is 5. This means that 5 is the farthest from 5 because 5 takes 5 of your fingers to count to, whule -4 (yes, even though it's negative) takes just 4 fingers. This is a good way to visualize it until you can wrap your head around it!

The coldest is the lowest number. In this case, it's below zero. Below zero means negatives. In this case, -4 is the lowest number.

The warmest is the highest number. In this case, it's above zero. That means it's a positive number. 5 is the highest number here.

What is the sum of the fractions? 3/8 + 1/6

Answers

Answer:13/24

Step-by-step explanation:

Answer:

26/48 is the answer

Step-by-step explanation:

Because 3/8 equals 18/48 and 1/6 equals 8/48 so add 18/48 + 8/48 to get 26/48.

A line's slope is 3, and it's y-intercept is 2. What is its equation in slope-intercept form?

Answers

Answer:

Y=mx+b, m= slope, b= y intercept, plug in. Y=3x+5

Step-by-step explanation:

What number makes the expressions equivalent?
1/2(-1.4m +0.4)=?m+0.2

Answers

Answer:

2/4  6/12   4/8   5/10

Suppose that in an election for governor of Oregon there are five candidates of whom two are women. A statistics student reasons as follows: the probability that a woman will win the election is equal to 2/5.  What is wrong with this reasoning?

Answers

Answer:

If in an Oregon state gubernatorial election, 2 of the 5 candidates are women, and a statistics student establishes that there is a 2/5 chance that the person elected for governor is a woman, this reasoning will be wrong.

This will be the case because not all candidates have the same amount of votes, that is, not all start with the same conditions: thus, there are more popular candidates than others, who will have greater probabilities of being elected as governors, regardless of their sexual identity.

Please help solve question 12 and through 14

( will give brianlst :))

Answers

Answer:

12. The slope is 2

    The y-intercept is 5

13. The slope is 1

     The y-intercept is 5

14. The slope is 0.99

     The y-intercept is 10

Step-by-step explanation:

12. If you use the rise over run method you go up by 2 and over 1. If you put rise over run you get 2/1 and that is equal to 2. So, slope is 2. The y-intercept is where x=0. If you look you can see that when x is 0, y is equal to 5. Therefore, the y-intercept is 5.

13. The slope is 1 because if you use the slope formula you can use two points like (1,6) and (2,7) in it to find that the slope is 1. You can also see that both the x and y variables go up by 1 each time, so the slope has to be 1. Once again the y-intercept is where x equals 0, even though it isn't shown on the graph we can infer it. At 0 days, the length of the kudzu would be 5 (because 5 is one step less than 6, remember the slope is 1).

14. The slope would have to be 0.99 because each consecutive download is 99 cents. There is a base membership fee of $10 so that has to be the y-intercept.

I hope this helps!!

If you have any questions let me know!

- Kay :)

Put these numbers in order, smallest to largest.
4.8
0.48
8.4
0.84
4.08

Answers

0.48, 0.84, 4.08, 4.8, and 8.4
0.48, 0.84, 4.08, 4.8, and 8.4

What is this? I don't understand this

Answers

I think it is a frequency table to be drawn for the Given information

Answer:

lollol

lol

lol

lol

lol

lol

lol

lol

Is -12.75 a rational number

Answers

yes it is a rational question

Jamal runs the bouncy house at a festival. The bouncy house can hold a maximum of 1200 pounds at one time. He
estimates that adults weigh approximately 200 pounds and children under 16 weigh approximately 100 pounds. For 1
four-minute session of bounce time, Jamal charges adults $3 each and children $2 each. Jamal hopes to charge at least
$24 for each session.

Answers

sorry I really need point but I wish you good luck!

Hello,12(12)=144
True or false?

Answers

Answer:

true................

Step-by-step explanation:

true

Answer: True

Explanation: 12 times 12 is 144

what’s the independent variable

Answers

Answer: A variable (often denoted by x ) whose variation does not depend on that of another.

Gloria thinks it will take her 12 hours to get to Florida. It actually takes her 10 hours and 12 minutes. What is Gloria’s approximate percent error?

A.
15%

B.
16%

C.
18%

D.
19%
If you help me i will mark you brainlis

Answers

Answer:

e

Step-by-step explanation:

The answer is A. 15 %

Item #1
Item #2
2
Cheerios
$3.65
for 17 oz.
Fruit Loops
$2.88
for 13 oz.
Unit Price
Which is the better deal? (Circle One)
Item #1
Item #2

Answers

Answer:

i think item 1 is the better deal...

Divide them to get a unit price.

Cheerios
3.65/17 = 0.21 per Oz

Fruit Loops
2.88/13 = 0.22 per Oz

Cheerios is the better deal as it’s cheaper altogether.

Point Q is the image of Q(4-6) under a translation by 1 unit to the right

Answers

Answer:

The  image of Q(4,-6) under a translation by 1 unit to the right then the new coordinate point R( 5 , -6)

Step-by-step explanation:

Explanation:-

Given image Q( 4, -6)

Type of transformation                                    change to co-ordinate point

a) Horizontal translation left

'C' units                                                                        (x, y)  ⇒   (x- c, y)

b) Horizontal translation right 'C' units                   (x, y)⇒( x +c ,y )

c) vertical translation up 'd' units                            (x, y)⇒( x  ,y + d )

d)  vertical translation down 'd' units                        (x, y)⇒( x  ,y - d )

     

Now we will use Horizontal translation right 'C' units    

image of Q(4-6) under a translation by 1 unit to the right

Q( 4 , -6)   ⇒ The new image R( 4+1 ,-6)

The  image of Q(4-6) under a translation by 1 unit to the right then the new coordinate point R( 5 , -6)

PLS HELP! The number of tickets sold at the Amazing Art Museum on Saturday was 175% of the ticket sales on Friday. If 2,000 tickets were sold on Friday, how many tickets were sold on Saturday?


Which statements are correct? Check all that apply.


The answer will be less than 2,000 because 100 is less than 175.

The answer will be greater than 2,000 because 175 is greater than 100.

The answer will be equal to the sum of 2,000 and 175.

The answer will be equal to the product of 175 and 20.

The answer will be equal to the quotient of 2,000 and 175.

Answers

Answer:

The answer is B

Step-by-step explanation:

Because 175% means its more than what it was before. Hope this helped!!

What is the solution set to the system of equations?
x^2 + y^2 = 17
-3x^2 + y^2 = 9

Answers

Answer:

The correct answer is B

Step-by-step explanation:

Hiiii please help if you in high school lots of points needs to be right answer please

Answers

there is only 1 base this is kind of a trick question there can only be 1 base the rest are sides

Help me with geometry that's due tonight!

Answers

1. Lime AD and lime DB are equal to each other which makes it the perpendicular bisector
2. Since it’s the particular bisector you just equal them to each other so 5x = 4x + 3 which equals x=3 then you plug it back in for line AC which equals 15

Evaluate - 2 + (-6) where a = 6.05 and b=3.611.​

Answers

-a + (-b)     where a = 6.05 and b = 3.611

Plug the variables in, then solve the equation

It should look like this:

- (6.05) + (-3.611)  =  -6.05 - 3.661 = - (6.05 + 3.661)

Add them together then make it negative.

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