Tn+1=35-2Tn, T1=5 what is T20?

Answers

Answer 1

Answer:  3,495,265

Step-by-step explanation:

[tex]T_{n+1}=35-2T_n\quad and\quad T_1=5, then\\T_{1+1}=35-2(T_1)\implies T_2=35-2(5)\implies T_2=25\\T_{2+1}=35-2(T_2)\implies T_3=35-2(25)\implies T_3=-15\\T_{3+1}=35-2(T_3)\implies T_4=35-2(-15)\implies T_4=65\\T_{4+1}=35-2(T_4)\implies T_5=35-2(65)\quad \implies T_5=-95\\T_{5+1}=35-2(T_5)\implies T_6=35-2(-95)\implies T_6=225\\.\qquad \qquad \qquad \qquad \qquad \qquad \downarrow\\.\qquad \qquad \qquad \qquad \qquad \qquad \downarrow\\.\qquad \qquad \qquad \qquad \qquad \qquad \downarrow[/tex]

[tex]T_{18+1}=35-2(T_{18})\implies T_{19}=35-2(873,825)\implies T_{19}=-1,747,615\\T_{19+1}=35-2(T_{19})\implies T_{20}=35-2(-1,747,615)\implies T_{20}=3,495,265[/tex]


Related Questions

12x +10+3+8x ? What do I have to do ?

Answers

Simplifying

12x + 10 + 3 + 8x = 0

Reorder the terms:

10 + 3 + 12x + 8x = 0

Combine like terms: 10 + 3 = 13

13 + 12x + 8x = 0

Combine like terms: 12x + 8x = 20x

13 + 20x = 0

Solving

13 + 20x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-13' to each side of the equation.

13 + -13 + 20x = 0 + -13

Combine like terms: 13 + -13 = 0

0 + 20x = 0 + -13

20x = 0 + -13

Combine like terms: 0 + -13 = -13

20x = -13

Divide each side by '20'.

x = -0.65

Simplifying

x = -0.65

Answer:

You have to do like terms

Step-by-step explanation:

12x+10+8+8x

12x+8x = 20x

10+3 = 13

your answer would be

20x+10

convert 35 inches into feet​

Answers

Answer:

2.91666667 ft

Step-by-step explanation:

2ft 11in
Or
2.91667(just feet)

let f be a linear function such that f(1)=5 and f(3)=9. Find an equation for f(x)

Answers

Answer:

[tex]y = 2x + 3[/tex]

Step-by-step explanation:

First, we can find the slope of the line.

[tex]m = \frac{y1-y2}{x1-x2}\\m=\frac{9-5}{3-1}\\m = \frac{4}{2}=2\\[/tex]

Using the [tex]y = mx + b[/tex] equation, we can solve for b

[tex]9 = 2(3)+b\\9 = 6 + b\\b = 9-6 = 3[/tex]

Let's see if [tex]y = 2x + 3[/tex] works

[tex]2(1) + 3 \\2 + 3 = 5\\\\2(3) + 3\\6 + 3 = 9[/tex]

It checks out!

If f(1)=5 and f(3)=9 we are given two points, so we can use the slope intercept form to find the equation of f(x)

Points:(1,5),(3,9)

Slope intercept form: y2-y1=m(x2-x1)

9-5=m(3-1)
4=m(2)
m=2

f(x)=2x+b Plug in a point and solve for b

5=2(1)+b
3=b

Answer: f(x)=2x+3

How to write 12 ten thousands 8 thousands 14 hundreds 7ones

Answers

Answer:

129,407.

Step-by-step explanation:

12 ten-thousands = 12*10000=120,000.

8 thousands = 8*1000=8000;

this gives us 120,000+8,000=128,000.

14 hundreds = 14*100=1400;

this gives us 128,000+1,400=129,400.

7 ones = 7*1=7;

this gives us 129,400+7=129,407.

Answer:

12,000 8,000 1,400 7

Step-by-step explanation:

I hope u get a tutor if u dont know how to do this I hope this helps

HELP WITH THE ONES CIRCLED PLEASE HELP ASAP

Answers

Answer:

4. as they move clockwise they change/gain .01 points

5. .32 , .33 , .34 , .36 , .37 , .39

.8 , .81 , .83 , .85 , .86 , .88

Step-by-step explanation:

I need the answer for number 6 please:)

Answers

Answer: 12.5

25 / 2 = 12.5

and so does

25 x .50 = 12.5

We are just cutting the price in half, or 50%.

Hope this helps you!

A farmer plans to use 180 feet of fencing to enclose a rectangular region, using part of a straight river bank instead of fencing as one side of the rectangle, as shown in the figure.

Answers

Final answer:

The farmer can determine the dimensions of the fenced area by solving the formula L + 2W = 180 feet, where L is the length of the fenced region along the river bank and W is the width.

Explanation:

This is a classic application of the perimeter of a rectangle in the field of Mathematics. If the farmer is using part of a straight river bank instead of fencing for one side of the rectangle, then he only needs fencing for the other three sides. The formula to calculate the perimeter of a rectangle is 2(length) + 2(width), but since one side is not fenced, it is length + 2(width) in this case.

If we assume the length (L - along the river bank) and width (W) of the rectangular area, then the equation can be expressed as:

L + 2W = 180 feet

This formula can help the farmer calculate the dimensions of the fenced area needed in order to use his materials most effectively. He needs to solve this equation to find the values of length and width that add up to 180 feet.

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transform pls in fraction (transformati in fractie pls) 3,(7)

Answers

Answer:

The fraction number is [tex]\frac{34}{9}[/tex]

Step-by-step explanation:

we have

[tex]3.777...[/tex]

This is a repeating decimal  (a decimal that has a digit, that repeat over and over and over again without ever ending)

Convert to fraction number

Let

[tex]x=3.777...[/tex]

[tex]10x=37.777...[/tex]

we know that

[tex]10x-x=37.777...-3.777...[/tex]

[tex]9x=34[/tex]

[tex]x=\frac{34}{9}[/tex]

therefore

The fraction number is [tex]\frac{34}{9}[/tex]

Allen Barry deposited checks
totaling $1,584.19 into his savings
account. He withdrew $96.00 while
depositing some loose change. Allen's
total deposit was $1,530.24. How much
did he deposit in loose change?​

Answers

The answer for this is 42.05

Answer:

$42.05

Step-by-step explanation:

Take $96.00 from 1,584.19 to figure out how much he had before he deposited

1,584.19 - 96 = 1,488.19

Now take away what he had after he took 96, to after he added.

1,530.24 - 1,488.19 = 42.05

Allen deposited $42.05

Write to show how you make a ten. Then add. What is 7+8?

Answers

Answer:14

Step-by-step explanation:

Answer:

it's 15

Step-by-step explanation:

one fifth of a number decreased by 7​

Answers

Let n = the number

(1/5)n - 7

2x - 3y = 3
x + 2y = 5
by substitution or elimination

Answers

2x - 3y = 3

x + 2y = 5

In the second equation we have an x-term that has a coefficient of 1 (which means the x is all by itself), so we can isolate that x and solve by substitution.

x + 2y = 5

x + 2y - 2y = 5 - 2y

x = 5 - 2y

The expression 5 - 2y will be substituted for x in the first equation.

2x - 3y = 3

2(5 - 2y) - 3y = 3

Solve for y.

2(5 - 2y) - 3y = 3

10 - 4y - 3y = 3 (distribute the 2)

10 - 7y = 3 (collect like terms)

-7y = -7 (subtract 10 from both sides)

y = 1 (divide both sides by -7)

Substitute 1 for y in the second equation to find x.

x + 2y = 5

x + 2(1) = 5

Solve for x.

x + 2(1) = 5

x + 2 = 5 (multiply)

x = 3 (subtract 2 from both sides)

Always check your work. Substitute into the original system.

2x - 3y = 3

2(3) - 3(1) = 3

6 - 3 = 3

3 = 3

x + 2y = 5

3 + 2(1) = 5

3 + 2 = 5

5 = 5

Answer:

x = 3 and y = 1; (3,1)

Solve for the indicated variable y=5x-6(x)

Answers

Answer:

x=-y

Step-by-step explanation:

551.985 in expanded notation

Answers

Answer:

(5 x 100) + (2 x 50) + (1 x 1) + (9 x 0.10) + (8 x 0.01) + (5 x 0.001)

Answer:

(5 x 100) + (1 x 50) + (1 x 1) + (9 x 1/10) + (8 x 1/100) + (5 x 1/1000)

step by step explanation:

500 + 50 + 1 + 0.9 + 0.08 + 0.005

= 551.985

Let's assume that bacteria doubles every 10 minutes. If a culture begins with exactly
30 bacterial cells, how many bacteria will be present after 1 hour?

A 960 Bacteria
B 1000 Bacteria
C 1520 Bacteria
D 1920 Bacteria​

Answers

Greetings!

First off, we should know that there are 60 minutes in an hour. Therefore, the first step we will need to do, is divide 60 by 10.

60 ÷ 10 = 6

As shown above, we now know we will have to double the number 6 times. If we start with 30, this will be our first problem.

(1)   30 + 30 = 60

And so on and so forth...

(2)   60 + 60 = 120

(3)   120 + 120 = 240

(4)   240 + 240 = 480

(5)   480 + 480 = 960

(6)   960 + 960 = 1920

And after our sixth time we have our answer:

1920 bacteria

Hope this helps!

~Fluerie

Liam bought a comic book and had $5 left. If he had a total of $8 walking into the store, how much did he spend on the comic book?

Liam used the equation 5x=8 to model the problem. He said that x represents the amount of money he spent. Liam said that the solution, x=1.6, means that he spent $1.60. Is he correct? Why or why not? If he is incorrect find the correct answer showing your work.

Pls Help Me

Answers

Answer: The comic book was $3.

Step-by-step explanation:

Instead of 5x=8, it should have been 5+x=8 because he only purchased a single comic book. Subtract 5 from 8 and your X value is 3.

Answer:

Liam spent $3 on the book.

Step-by-step explanation:

Liam bought a comic book and had $5 left.

He had a total of $8 walking into the store, so he spent [tex]8-5=3[/tex] dollars on the comic book.

Liam used the equation 5x=8 to model the problem.

This is wrong. The correct form would have been [tex]8-x=5[/tex] or [tex]5+x=8[/tex] where x represents the amount of money he spent.

Hence, Liam spent $3 on the book.

Identify the x-intercept.

1) y= 1/5x + 3

2) y= 6x - 7

3) y= -8/3x + 9

Answers

Answer:

Step-by-step explanation:

the x-intercept when y = 0

1 ) 1/5 x +3 =0    1/5x = - 3 so : x = -15

2) 6x -7 = 0       6x = 7   so ; x =7/6

3) -8/3x +9 = 0    -8/3 x = -9  so  : x =27/8

can someone help me do this problem please

|2x-4|=22

Answers

Answer:

2x-4 = 22

2x = 26

x=13 check |26-4|=22

-(2x-4) = 22

-2x+4 = 22

-2x = 18

x=-9 Check |-18 -4| = |-22| = 22

Answer:

x=13

Step-by-step explanation:

Finding the answer to this is very simple actually. you can actually solve this problem without the || because x has to be a positive value for this to work. 2x-4=22 can be done by adding 4 to both sides and getting the answer 26. Isolate the variable by dividing both sides by 2 to get x=13

What is 4/3 - (-3/4)

Answers

Answer:

0 I think

Step-by-step explanation:

Answer:

25/12 or 2 1/12

Step-by-step explanation:

4/3 - (-3/4) =

= 4/3 + 3/4

= 16/12 + 9/12

= 25/12

= 2 1/12

Malachi’s garden is 2 3/5 meters long. He wants to plant tomato plants every 1/5 of a meter. How many plants can Malachi fit?

Answers

2 3/5= 13/5
(13/5)/(1/5)=(13/5)5=13
answer: A maximum of 13 tomato plants :)

Answer:

13 plants.

Step-by-step explanation:

We have been given that Malachi’s garden is 2 3/5 meters long. He wants to plant tomato plants every 1/5 of a meter.

To find the number of tomato plant that will fit the garden, we will divide length of garden by 1/5 as:

[tex]\text{Number of tomato plant that will fit the garden}=2\frac{3}{5}\div \frac{1}{5}[/tex]

Convert mixed fraction into improper fraction:

[tex]2\frac{3}{5}\Rightarrow\frac{2\times5+3}{5}=\frac{10+3}{5}=\frac{13}{5}[/tex]

[tex]\text{Number of tomato plant that will fit the garden}=\frac{13}{5}\div \frac{1}{5}[/tex]

Convert to multiplication problem by flipping the 2nd fraction:

[tex]\text{Number of tomato plant that will fit the garden}=\frac{13}{5}\times \frac{5}{1}[/tex]

[tex]\text{Number of tomato plant that will fit the garden}=\frac{13}{1}\times \frac{1}{1}[/tex]

[tex]\text{Number of tomato plant that will fit the garden}=13[/tex]

Therefore, 13 plants will fit Malachi's garden.

What is 13.56 • 10 to the power of -8

I rlly need this for math tomorrow

Answers

Answer 0.0000001356

Step-by-step explanation:Since the exponent of the scientific notation is negative, move the decimal point

8 places to the left.

can anyone find the measurements of these angles (#7 ONLY THANK U)

Answers

The measure of angle2=m angle 6 (Corresponding angle)
So 3x+28= 5x-30
Subtract both side for 3x
28= 2x-30
Add 30 to both sides
58=2x
So x= 29
Therefore m angle 2= m angle 6= 115•
so m4= 180-115= 65•(supplementary theorem)
m2=m3= 115• (vertical angles)
Keep doing it due to these theorem you will get all the answers.

|b|+b^3;b=-2 evaluate the expression

Answers

Answer:

-6

Step-by-step explanation:

[tex] | - 2| = 2 \\ {( - 2)}^{3} = ( - 2)( - 2)( - 2) = ( - 8) \\ \\ | - 2 | + {( - 2)}^{3 } = 2 - 8 = - 6[/tex]

Final answer:

To evaluate the expression |b|+b^3 when b=-2, substitute -2 for b, evaluate |b| and b^3 separately and then add the results.

Explanation:

To evaluate the expression |b|+b^3 when b=-2, we substitute -2 for b in the expression.

The absolute value of a number is that number's distance from zero on a number line, regardless of which direction. This means that the absolute value of any negative number is its positive equivalent. Thus, |b| is the same as |-2|, which equals 2.

Secondly, b^3 means b multiplied by itself twice. So (-2)^3 equals -2*-2*-2 which is -8.

First, we evaluate |b|. The absolute value of -2 is 2, so |b| = 2.

Next, we evaluate b^3. (-2)^3 = -8.

Finally, we add the two results together: 2 + (-8) = -6.

Therefore, when b=-2, the expression |b|+b^3 evaluates to -6.

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What is 14/18 as decimal

Answers

Answer:

14/18 = 0.778

Step-by-step explanation:

14 divided by 2 = 7

18 divided by 2 = 9

7/9 is the same as 7 divided by 9

= 0.778

The decimal equivalent of [tex]\( \frac{14}{18} \)[/tex] is approximately 0.777777777777778.

To convert [tex]\( \frac{14}{18} \)[/tex] to a decimal, one divides 14 by 18. This can be done by hand or with a calculator. When dividing 14 by 18, the result is a repeating decimal where the digit 7 repeats indefinitely. This repeating decimal can be represented as 0.777777777777778 when rounded to the nearest 10th decimal place.

Alternatively, one can simplify the fraction [tex]\( \frac{14}{18} \)[/tex] before converting it to a decimal. By dividing both the numerator and the denominator by their greatest common divisor, which is 2, the fraction simplifies to [tex]\( \frac{7}{9} \)[/tex]. When 7 is divided by 9, the result is again the repeating decimal 0.777777777777778.

In summary, [tex]\( \frac{14}{18} \)[/tex] simplifies to [tex]\( \frac{7}{9} \)[/tex] and as a decimal, it is approximately 0.777777777777778.

Estimate 29.14 x 5.2

Answers

Answer:

About 151.500

Step-by-step explanation:

Actual answer is 151.528 Just go with mental math.

Enter the numerical coordinates of the vertices of quadrilateral ABCD in the table. (Point A has been done for you.) Then predict the numerical coordinates of the vertices of quadrilateral A′B′C′D′ as the figure translates four different ways: 7 units up, 1 unit down, 4 units to the right, and 3 units to the left.

Answers

Answer:

Step-by-step explanation: Edmentum Answer

Answer:

Step-by-step explanation: I got it wrong lol

There was 5/8 of pie left in the fridge. Daniel are 1/4 of the leftover pie. How much of pie did he have?

Answers

Answer:

he had 1/4 of the pie; there's 3/8 left over. That's also 37.5% of the pie left over. Not sure what you're trying to get.

Step-by-step explanation:

1/4 is also 2/8

how many vertical asymptotes does the graph of this function have? f(x)=5/3x(x+1)(x-7)

Answers

Answer:

The graph of the function has three vertical  asymptotes

Step-by-step explanation:

we have the function

[tex]f(x)=\frac{5}{3x(x+1)(x-7)}[/tex]

we know that

To find the vertical asymptotes of a rational function, simply set the denominator equal to 0 and solve for x.

so

[tex]3x(x+1)(x-7)=0[/tex]

The values of x are x=-1,x=0, x=7

using a graphing tool

see the attached figure to better understand the problem

therefore

The graph of the function has three vertical asymptotes

Answer:

3. The answer is 3

Step-by-step explanation:

what is
[tex] \sqrt{180 } [/tex]
simplified?

Answers

Answer:

Step-by-step explanation:

I don't know exactly how simplified it will be, but you can get the square root smaller.

180: 2*2 * 3*3 *5

For every pair of prime factors you can take 1 of the pair outside the the square root and throw the other one away

sqrt(2*2*3*3*5) = 2 * 3 * sqrt(5) = 6*sqrt(5)

A line is parallel to y = 3x - 12 and
intersects the point (1, -2). What is the
equation of this parallel line?

Answers

Answer:

y=3x-5

Step-by-step explanation:

parallel means that both lines share the same gradient.

from the equation y=3x-12 , we can deduce that the gradient is 3 because it is in the gradient-intercept form

now substitute values into formula

y-y1=m (x-x1)

y--2=3 (x-1)

expand brackets and simplify

y+2=3x-3

subtract 2 from both sides of equation

y=3x-5

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