if x + 1/x = 5, find the value of x^3 + 1/x^3

Answers

Answer 1

Answer:

x=5/3 your answer right answer

Answer 2

Answer:

110

Step-by-step explanation:

The expansion (a + b)³ is

(a + b)³ = a³ + b³ + 3ab(a + b)

Then

(x + [tex]\frac{1}{x}[/tex] )³ with a = x and b = [tex]\frac{1}{x}[/tex]

= x³ + [tex]\frac{1}{x^3}[/tex] + 3x . [tex]\frac{1}{x}[/tex] (x + [tex]\frac{1}{x}[/tex] )

Thus

x³ + [tex]\frac{1}{x^3}[/tex] = (x + [tex]\frac{1}{x}[/tex] )³ - 3(x + [tex]\frac{1}{x}[/tex] )

           = 5³ - 3(5)

           = 125 - 15

           = 110


Related Questions

hii i need a lil confidence boost can u just rate this pic 1-10? 1, for eww ur nasty and 10 for u pwetty :3

Answers

Answer:

100 ;w; yorw pwetty VwV

Step-by-step explanation:

These are my cats, idek if it worked lol, also 40x2 bc why not you don’t have to answer






Answers

Answer:

It didn't work, 40 x 2 = 80

Step-by-step explanation:

have a good day

Answer:

Hey! I don't see any cats :(

Step-by-step explanation:

40x2= 80 !

Hope this helps!

Have a nice day! ♥(>'-'<)

Kiemanh is solving the equation 15r-6r= 36. What is the value of r?
O 2
O 4
O 15
O 27

Answers

Answer:

4

Step-by-step explanation:

15r-6r=36

9r=36

r=36/9

r=4

What is 1 12/20 as a percentage

Answers

Step-by-step explanation:

step 1. 1-12/20 = 1.6

step 2. 1.6 = 160%.

Its 160 okk like u use photomath

answer answer answer answer

Answers

All you do is pythagorean theorem. Which is A squared plus B squared equals C squared. Think of each graph as a right triangle. If you make it a triangle then you know that one side is 6 and one side is 2 so then you can figure out the problem by using Pythagorean theorem to solve for the long side also known as C or C squared

On a​ map, 1 inch equals 5 miles. Two cities are 3 inches apart on the map. What is the actual distance between the​ cities?
The actual distance between the cities is ___ miles.

Answers

Answer:

15

Step-by-step explanation:

cross multiplying, [tex]\frac{1}{5}[/tex] × [tex]\frac{3}{x}[/tex]

then it would be 15 =1x

and 1x is basically just one, so 15 = x

(08.02 MC)

The two dot plots below show the heights of some sixth graders and some seventh graders:

Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there are 2 dots for the fifth mark, there are 4 dots above the sixth mark.

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.4. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)

3.2
3.0
1.5
0.8

Answers

Answer:

b

Step-by-step explanation:

is this table linear or non -linear?

Answers

Answer:

all of them are linear

Step-by-step explanation:

Use the function y=ax, plug x and y into it.

I have just tried it and all of them are linear function.

What is 1,050/55 What is the answer.

Answers

Answer: 19.0909090909  or 19

the answer in percentage is 577.5 %

what is the sign of A times ( - b)

Answers

Answer:

i believe it's negative.

Step-by-step explanation:

if the question is asking A x -B it should be negative because it's a negative number times a positive. hope i helped.

write 5/6 as a decimal

Answers

Answer:

0.83333333

Step-by-step explanation:

Is that what you wanted?

look it upppppppp B))

What's the largest 6-digit multiple of 5 that has all different digits? I'll give Brainliest to anyone who helps.

Answers

Answer:

987650

Step-by-step explanation:

The largest 6-digit number is:

999999

We need all digits different and the last one 0 or 5 because the number is the multiple of 5.

9876 are the first 4 digits and the last two 50 or 45, we'll chose 50 as 45 is smaller.

So the number is:

987650

Answer:

987650 hag1 !!!

Rachel has $18.20 deducted from her paycheck every month for insurance. After 6.25 months, how much money has been deducted from Rachel’s checks?
-$11.38
-$18.20
-$113.75
-$1,137.5

Answers

It’s C because 18.2 x 6.25 is 113.75

Sam has striped and spotted socks in his draw in
the ratio 3:7. He has 6 striped socks.
How many spotted socks does he have?​

Answers

Answer:

14 spotted socks

Step-by-step explanation:

Sam has 3 units of striped socks and 6 of them.

Find one unit.

3 units = 6

1 unit = 6 ÷ 3 = 2

Sam has 7 units of spotted socks.

7 units = 2 x 7 = 14

help please due in 45 mins pleaseee helpppppp omg

Answers

Answer:

1. 0.6

2. 0.08333

.

.

.

.

i hope this helps

Answer:

I can't exactly show the work very well or in the way you want but I can answer the question...

Step-by-step explanation:

3/5 as a decimal is 0.6 and 1/12 as a decimal is 0.08333 (it goes on forever)

Hope this helps!

1



HELP
A rectangular prism with a volume of 4 cubic units is filled with cubes with side lengths of
unit.
1
How many
unit cubes does it take to fill the prism?
3

Answers

Answer:

Answer. Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units.

Step-by-step explanation:

Answer. Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units.

The perimeter of the triangular park shown on the right is 11x - 7. What is the missing length?

Answers

Answer:

6x-4

Step-by-step explanation:

the perimeter is the distance around the shape, we get this by adding all the sides, call the missing side y and set up an equation for the perimeter

11x-7 = 4x+2 + x-5 + y

solve for y

11x-7 = 5x -3 + y

11x-4 = 5x + y

6x-4 = y

The sum of 7 and n. giving brainly .

Answers

Answer:

The sum of 7 and n would be 7n

Step-by-step explanation:

I don't know why my question was deleted but with this information it would be 7n

What formula do i use when it tells me to find the area with a given circumference? If you know please give an example as well, thank you.

Answers

Answer:

Step-by-step explanation:

A = C^2 / 4 x pi

so if the circumfernce was 10 you would square it to make it 100 and then you would do 4 x pi to get 12.57 ( rounded).

you would then just divide 100 by 12.57 = 7.96 ( rounded)

hope it helped

Will give Brainliest!!!!
Solve the equation for the specified variable.

w=yh−5yt2, for y

y =

Answers

Answer:

[tex] y = \dfrac{w}{h - 5t^2} [/tex]

Step-by-step explanation:

w = yh − 5yt^2

There is a y in each term on the right side. We factor it out.

w = y(h - 5t^2)

Now we divide both sides by h - 5t^2 to isolate y.

[tex] \dfrac{w}{h - 5t^2} = y [/tex]

[tex] y = \dfrac{w}{h - 5t^2} [/tex]

A
4 yards
B
C
15 yards
Find the area of ABC.
[?] yd!
Enter

Answers

Answer: it shuld be 3 as zee answer

Step-by-step explanation:

find the finance charge for a $25,000, three year loan with a 9.25% apr. How much interest is paid

Answers

Answer:

$6,937.50

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 25000(.0925)(3)

Can somebody plz help answer this math problem (only if u know how to do it) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!

Answers

Answer:

hour hand = 7.5 x 2 for the diameter. C = 2(pi)(15) = approx. 94 centimeters. Minute hand = 9.5 x 2 = 19, C = 2(pi)(19) = approx. 119 centimeters

Step-by-step explanation:

Which pair shows equivalent expressions?

Answers

Answer:

d

Step-by-step explanation:

HELP PLEASE!! THIS IS DUE IN A BIT

Answers

Answer:

my bestie john is correct!!

everything was correct

I am Canadian so not sure if this is the way you do it because you might not be from canada we work left to right using BEDMAS

ANYONE PLZ PLZ PLZ ANSWER THIS QUESTION

Answers

Answer:

120

Step-by-step explanation:

you add em all up then you find the answer choice

PLEASE HELP, I’ll give brainliest to anyone who answers first!!!!

Answers

Answer:

opotion 2!

Step-by-step explanation:

8.
A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.
a. What is the charge for a 1-mile ride?
b. What is the charge for a 2.7-mile ride?


A. $2.15; $2.83


B. $0.40; $5.13


C. $0.40; $1.08


D. $1.75; $2.15

Answers

Answer:

A. $2.15; $2.83

Step-by-step explanation:

2.83

c = 0.4. * 2.7 + 1.75

=> c = 2.83

4(2.7)+1.75

1.08+1.75=2.83

$2.83 is correct.

c=0.40(2.7)+1.75

c=1.08+1.75

c=2.83

Answer:

2.83 dollars

Step-by-step explanation:

Fixed charges made by the taxi company for a ride =  

Additional charge for each mile travelled =  

Hence equation for cost is given by

where m is thenumber of miles travelled.

To find out the charge for a 2.7 mile ride substitute m = 2.7

Total cost for 2.7 mile ride is 2.83 dollars

Answer: A

Step-by-step explanation:

PLEASE HELP ASAP WILL MARK BRAINLIEST

Answers

Answer: 314 mm

Step-by-step explanation:

Area of a circle is π*r^2

r is radius and π is 3.14

here the radius is 10

3.14 * 10^2 = 3.14 * 100 = 314

what is a difference between the sector and the segment of a circle?​

Answers

Step-by-step explanation:

The difference between the sector and the segment of a circle is :

Sector ➡ The region enclosed by any two radii and the corresponding arc of a circle is a sector of the circle.

Whereas

Segment ➡ The region enclosed by a chord and corresponding arc is called the segment of a circle.

Hope it will help :)❤

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