If X=3+√8, find X square + 1/x square

Answers

Answer 1

Given :-

x = 3 + √8

To find :-

x² + 1/x²

Solution :-

According to Question,

x = 3 + √8 1/x = 1/3-√8 1/x = 1(3+√8)/(3+√8)(3-√8)1/x = 3+√8/3²-(√8)² 1/x = 3+√8/9-81/x = 3 + 8

So that ,

x² + 1/x²(x + 1/x)² - 2( 3+√8+3-√8)²-29² - 281 - 279


Related Questions

given deductions for this week: federal tax $61.34, FICA $52.05, and state $7.92 what is the annual federal tax deduction?
- $6,308,.12
-$3,189.68
-$3,152.06
-$1,594.84​

Answers

Given the weekly deductions raised, the annual Federal Tax deduction is $ 3,189.68.

Given that the deductions for the week were: Federal Tax $ 61.34, FICA $ 52.05, and State $ 7.92; To determine what is the annual Federal Tax deduction, the following calculation must be performed:

The weekly deduction must be multiplied by the number of weeks that a year has, to obtain the final amount of taxes.

$ 61.34 x 52 = X $ 3,189.68 = X

Therefore, the annual Federal Tax deduction is $ 3,189.68.

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Plz help I need help

Answers

O y = 5x + 1 Oy= 1/5x y = -x Oy= -5(x + 1)

1/4×10/12 simplest form

Answers

Answer:

10/48 - 2/24 - 1/12

Step-by-step explanation:

answer is 1/12

Given matrices A and B shown below, find (−4)A+(−9)B.

Answers

see the answer in the attached picture.


There is an equation that has a slope of 3 and it crosses the y-axis at (0, -1).
What is the equation of this line?

Answers

Answer: y = 3x - 1

Step-by-step explanation:

y = 3x + c

-1 = 3(0) + c

-1 = 0 + c

-1 - 0 = c

-1 = c

y = 3x - 1

3+(-5)+9-12÷2

lol easy

Answers

The answer is 1 Do you want me to explain or nah

What is the missing term in the factorization?

100x2−36=4(5x+?)(5x−3)



Enter your answer in the box.

Answers

Answer:

100x^2-36=4(5x+3)(5x-3)

Can someone help me on this question! It’s really confusing

Answers

is that all of the question?

Find the Area of the figure below, composed of a parallelogram and one semicircle. Rounded to the nearest tenths place


Answers

Hi,

Recall that the area of a parallelogram is the product of the base b and the height or "altitude" h. So the formula is : b * h. b = 20 here, and h = 6, so we get : 20 * 6 = 120.

Now we have to compute the area of the semicircle, remember the formula for the area of a circle is : πr² where r is the radius of the circle. If we watch the figure, we already have the value of the diameter d = 8. So the radius is equal to half the diameter : r = 8 /2 = 4

Now applying the formula we get : πr² = π * 4² ≈ 50.3 rounded to the nearest tenth place.

But we don't wont the area of the circle, we want half the area of it, since it's a semicircle : πr² / 2 ≈ 25.1 rounded to the nearest tenth place.

Now to get the whole area of the figure, we need to sum the area of the parallelogram with the area of the semicircle : 120 + 25.1 ≈ 145.1 rounded to the nearest tenth place.

Good Luck

Janice is a travel agent. She receives a 7% commission based on the value of the trips she
books. Today she spent 5 hours arranging a $6,300 cruise for a couple.

Answers

Based on her commission percentage, Janice was able to earn $441 in commission which translates to $88.20 per hour

The commission that Janice earned is found by:

= Commission percentage x Value of trip booked

= 7% x 6,300

= $441

The amount she earned per hour is therefore:

= Commission earned / Number of hours worked

= 441 / 5

= $88.20

In conclusion, Janice earned $441 in commission and earned $88.20 per hour.

Find out more at https://brainly.com/question/14473634.

The rest of the question is:

a. How much commission did she earn?

b. What was her mean hourly pay for the work she did?

Which equation describes the sum of the vectors plotted below?
6
A. r 38 27
B. 2x+y
C. r 38 1 27
O Dr 3x Ý

Answers

Answer: [tex]A) \ 3\vec{x} -2\vec{y}[/tex]  

Step-by-step explanation:

The resultant can be calculated using triangular law of vector addition as :

[tex]\rm \vec{r}=\vec{AB} +\vec{AC}=2x+y+x-3y=\boxed{3x-2y }[/tex]

Pls help I’ll brainlest and add extra points

Answers

6- neither of the treatments helped dispel the green lime.
7-control group- water
8-independent variable- coconut juice
9-dependent variable- green slime
10- homers conclusion would be that neither coconut juice nor water would treat the green slime that had been in his shower.

list five rational numbers between -1 and 0​

Answers

Answer:

-1 ,-1/2 , -3/4 , -1 /4, -5 / 8 , -7 / 8 , -13 / 16, 0.

Step-by-step explanation:

PLEASE HELP ME ITS ALGEBRA THANK YOUUUU

Answers

Answer:

2924

Step-by-step explanation:

2752 ÷ 16 = 172 ← number of points per coin

After collecting 17 points he will have collected

2752 + 172 = 2924 points in total

Answer:

2924

Step-by-step explanation:

If the interest earned is $96.00 at a rate of 4% for 6 years, how much principal was invested? step by step equation please ​

Answers

Wouldn’t it be $400.00
P=96/(0.04*6)=400
P=$400.00

Determine the better buy. A: $9.60 for 3 gallons B: $16.00 for 400 fl ounces
1 gallon = 128 fl ounces

Answers

Answer:

A is better, you pay 0.015 less than option B.

Step-by-step explanation:

1 gallon = 128 oz so:

3 x 128 =  384 oz

9.60 / 384 = $0.025 per oz

16.00 / 400 = $0.04 per OZ

Who does edge still in 2021?

Answers

Everyone uses this sofware to develop there decent knowledge about different courses that are best taught by Artificial Intelligence (A.I.).

Rewrite the linear equation in the form y = mx + b.

x + 2y = -8 ​

nonsense answers will be reported.

Answers

Please find attached photograph for your answer.

Evaluate the function for each input listed in the table, and graph the resulting ordered pairs on the coordinate plane.

x f(x) = 2x
0
1
2
3
4

Answers

Answer:

0

2

4

6

8

Step-by-step explanation:

f(x) = 2x

f(0) = 2 * 0 = 0

f(1) = 2 * 1 = 2

f(2) = 2 * 2 = 4

f(3) = 2 * 3 = 6

f(4) = 2 * 4 = 8

The complete table of the linear function f(x) = 2x for x = 0 to 4 is:

x     0   1    2   3  4  

f(x)  0   2   4   6   8

How to evaluate the function values?

The function is given as:

f(x) = 2x

When x = 0, we have:

f(0) =2(0) = 1

When x = 1, we have:

f(1) =2(1) = 2

When x = 2, we have:

f(2) =2(2) = 4

When x = 3, we have:

f(3) =2(3) = 6

When x = 4, we have:

f(4) =2(4) = 8

So, the complete table is:

x     0   1    2   3  4  

f(x)  0   2   4   6   8

Read more about linear functions at:

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1/2 : 10 = 2 12 : x
What is the value of x

Answers

I am probably wrong but with the math I do I got 35

1. What reasons did the members of the Constitutional Convention have for creating the Electoral College?
2. How have voters in America changed since the Constitution was created?

3. Should the Electoral College continue to be used? Why or why not? Use examples from your research to support your answer.

Please help me~!!

Answers

Answer:

Non veg se mujhe Run movie ka kawuaa biryaani yaad aa gya

Step-by-step explanation:

Accha bhai koi mujhe batao  

Pahle murgi ya anda  

Wait your answer

5n + 1/8 = 3n-5/4
Solve for n

Answers

solve for n by cross multiplying which will be n=11

Answer:

[tex]n=-\frac{11}{16}[/tex]

Step-by-step explanation:

[tex]5n+\frac{1}{8}=3n-\frac{5}{4}[/tex]

[tex]5n-3n=-\frac{5}{4}-\frac{1}{8}[/tex]

[tex]2n=-\frac{11}{8}[/tex]

[tex]n=-\frac{11}{16}[/tex]

hhhhhhhhhhhheeeeeeeelllllllllllpppppppppppp me

Answers

I might be wrong but im pretty sure the answer is B.

Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, how much take-home pay did Adjoa earn this past month?

Answers

Adjoa's got 4265.46 Ghc as his take home pay for the past month.

The question gave us his gross salary, which means everything he earned. At the same time, giving us a particular number as deduction. To calculate the net salary, all we have to do is to subtract the deduction from the gross salary, And thus;

4687.24 - 421.78 = 4265.46 Ghc

to learn more, see here  https://brainly.com/question/16688602

Match the following sentences on the left with their algebraic expression on the right.

Answers

a. The product of 5 and the sum of a number and 8

Product means multiplied, so that means 5 multiplied by some number plus 8, thus, 5(x+8)

b. A number less than 12

12-x would equal less than

c. The product of five and a number divided by 2

Again, product means multiplied, so its saying 5 times something, all divided by 2, thus, 5x/2

Please give brainliest :) hope this helps!

Answer:

A number less than twelve = 12 - x = b

The product of five and a number divided by two = 5x/2 = c

The product of five and the sum of a  number and eight = 5(x+8) = a

Step-by-step explanation:

A number less than twelve

12 minus a number

12 - x

The product of five and a number divided by two

A number times 5 divided by 2

5x/2

The product of five and the sum of a  number and eight

A number plus 8 times 5

(x+8)*5

5(x+8)

A true/false test has 20 questions on it. What is the probability that you get at least 18 right by purely guessing?

Answers

Answer:

I would say if your lucky 6/20 but if not 4/10

HELPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

cuál de los siguientes documentos es más Útil para construir carretera

What is formed when the number of electrons is changed?

Question 2 options:

isotope


radioisotope


a new element


ion

Answers

Answer:

A New Element

An ion is formed. Change of electrons = ionizing the element!

Are constants like terms

Answers

Step-by-step explanation:

yes , all constant are like terms.

PLEASE HELP ITS MATH THANK YOUUUU

Answers

2m. 2 meters is the answer
The answer is 1cm = 2m
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