If a = 2+√3 , find the value of (a-1/a)^2​

Answers

Answer 1

Answer:

1

Step-by-step explanation:


Related Questions

A car is traveling at a speed of 50 meters per second. What is the cars speed in kilometers per hour? How many kilometers will the car travel in 3 hours?

Answers

The car is going 180 kph. In three hours the car would travel 540 kilometers. Hope this helps.

Answer:

180 kilometers per hour, 540 in 3 hours

plzzzzz help ill mark you plzzzzzzz

Answers

Answer:

Step-by-step explanation:

a. 5 3/6  - 1 2/6 = 4 1/6

b. 8 9/12 - 5 10/12

    7 21/12 - 5 10/12= 2 11/12

A: 5 1/2 - 1 1/3.

Answer: 25/6.

in mix fraction ot would be, 4 1/6

and in decimal from it will be, 4.166667.

B: 8 3/4 - 5 5/6.

Answer: 35/12.

In mix fraction it will be, 2 11/12.

and in decimal from it would be, 2.916667.

1. 30-70h=30
2. 300+70h=-30
3. 300-70h=-30
4. 300+70h=30

Answers

It is 300-70h=30

If you do the math 300 - 30 kilos to go is 270 kilos. 270 kilos divided by 70 kilos is about 3.85. So with the correct equation you can solve and find it true. 300 - 70(3.85) is roughly 30.

Travis wants to build a small rectangular fence. He has enough material to build a fence that has a perimeter of 100 feet. Let x represent the length of the fence in feet.

Travis wants to use all of the available materials. What values of x will fence in an area of at least 600 square feet?

Answers

Answer:

x=250?

Step-by-step explanation:

you being vague bro

Help me I need the answer ASAP I’ll give brainliest

Answers

Answer:

number 2

Step-by-step explanation:

4/10 and 10/25 are equal : proportionate

Evaluate the expression for k = 2.

4k2 =

Answers

Answer:

16

Step-by-step explanation:

4*2*2

8*2

16

Anyone want points or brainiest here is a question. What is 4-1!
:D

Answers

Answer:

it would 41 amiright?

Answer:

4-1=3

Step-by-step explanation:

hope it helps and have a great day :)

-3 is a zero for the polynomial:
x^3 + 7x^2 + 16 x + 12
True or False

Answers

Answer:

true

Step-by-step explanation:

If x = - 3 is a zero of the polynomial then f(- 3) = 0

f(x) = x³ + 7x² + 16x + 12

     = (- 3)³ + 7(- 3)² + 16(- 3) + 12

     = - 27 + 63 - 48 + 12

     = 0

Since f(- 3) = 0 then x = - 3 is a zero of the polynomial

Peggy rode her bike 25 miles in 2 hours. At this rate, how far will she ride in 3 hours?

Answers

37.5 miles

divide 25 by 2, that gives you 12.5
multiply 12.5 by 3 to get 37.5

I really need this one answered, I just can’t figure it out.

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25.2 divided by 4.2 =6

Answer the fist question shown asap

Answers

We can draw the line y = 1 and reflect the triangle XYZ over it.

Find the volume of the cylinder. Use 3.14 for pi. Round your answer to the nearest tenth.

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Answer:

The formula for the volume of a cylinder is V=Bh (where B is the base) or V=πr2h . The radius of the cylinder is 9 ft and the height is 6 ft. Substitute 9 for r and 6 for h in the formula V=πr2h = (3.14) (9) (2) (6) =339.12

Step-by-step explanation:

Now C=339.12 round to the nearest tenth is 339.1

The price of a watch was increased by 20% to £162.
What was the price before the increase?

Answers

Answer:

hii

shshjsjjsjsjs

hshsh

ssddff

f

f

off

if

f

off

f

f

d

ddf

y

5

e

w

s

xf

120%=162
⬇️/12
10%=13.5
⬇️x10
100%=135

Answer=£135

Ashton plays three games of checkers with his grandmother. Identify the
sample space (the correct list possible outcomes) for Ashton's results.
W = win, L = loss
The notation WLL means Ashton won the first game, lost the second game,
and lost the third game.
A. {WWWW, WLWL, LLLL}
B. {WW, WL, LW, LL}
C. {WWW, WWL, WLW, WLL, LWW, LWL, LLW, LLL)
D. {WWW, WWL, LLL}

Answers

Answer:

C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

What is the first step for plotting points on the coordinate plane

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Answer:

Steps for Plotting an Ordered Pair (x, y) in the Coordinate Plane. Determine the x-coordinate. Beginning at the origin, move horizontally, the direction of the x-axis, the distance given by the x-coordinate. If the x-coordinate is positive, move to the right; if the x-coordinate is negative, move to the left.

If x = 3 and y = 5, work out the value of a) 4x - 2y
b) 2x2 + 3y2

Answers

Answer:

A) 12-10

B)36+225

Step-by-step explanation:

A) 3x4=12, 5x2= 10= 12-10

B) 3x2=6x6=36, 3x5=15x15=225=36+225

For x = 3 and y = 5 the values of the given expressions are (a) 4x - 2y = 2 and (b) 2x² + 3y² = 93.

What is substitution?

Substitution is a mathemaical technique for replacing variables with specific or covnient values according to the context.

When the values of variables are given to solve an equation we just have to replace those numerical values in place of the given variables.

Given, x = 3 and y = 5.

∴ 4x - 2y is,

= 4(3) - 2(5).

= 12 - 10.

= 2.

And

2x² + 3y².

= 2(3²) + 3(5²).

= 2(9) + 3(25).

= 18 + 75.

= 93.

learn more about substitution here :

https://brainly.com/question/16609931

#SPJ2

Which angles are corresponding angles?
Check all that apply.

Answers

A, B, and C. Fuisfisjudjsja extra letters

The corresponding angles are

2 and 6

3 and 7

5 and 3

and, 4 and 8

What are corresponding angles?

Any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal are called corresponding angles.

Or, when two parallel lines are intersected by a third one, the angles that occupy the same relative position at each intersection are known to be corresponding angles to each other.

According to the given question.

We have a diagram, in which there are two parallel lines and one another line which is intersecting these two lines.

From the given diagram,

The pairs of angles 2 and 6,  1 and 5, 3 and 7, and 4 and 8 are occupying the same relative positions, upper right side, upper left side, lower left side, and lower right side respectively.

Therefore, we can say that angles

2 and 6

3 and 7

5 and 3

and, 4 and 8

are corresponding angles.

Find out more information about corresponding angles here:

https://brainly.com/question/1597341

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The distributive property:
a. 7.4x + 0 = 7.4x
b. 2.7(x + y) = 2.7x + 2.7y
c. 7z x 1 = 7z
d. (2.3 + 3a) + 5a = 2.3 + (3a + 5a)
e. z(0.2) = 0.2z
f. 0.2(5 x w) = (0.2 x 5) x w
g. 2.73 + x = x + 2.73

Answers

I think the answer is c I hope this helps
I’m pretty sure it’s c!<3

Use the foil method to check your answer 3(x+1)(x+2)

Answers

Answer: Your input: multiply (x+1)(x+2) using FOIL.

((x)+(1))((x)+(2))=(x)⋅(x)First+(x)⋅(2) Outer+(1)⋅(x) Inner+(1)⋅(2) Last=

=(x2)+(2x)+(x)+(2)=

=x2+3x+2.

Answer: (x+1)(x+2)= only look at this

What is the scale factor in the dilation?

1/6

1/3

3

6

Answers

The scale dilation is 3.
Explanation:
The pre- image has a length of 3 and the image has a length of 9. 3 * 3 = 9
The pre-image has a height of around 2.66666 repeating and the image has a height of 8. 2.666 repeating * 3 ≈ 8

Answer: yes its 3! I took the test its 3

Step-by-step explanation:

What is 1 3/7 plus 2/28 (simplify it)

Answers

Answer:

3/2 or 1.5

Step-by-step explanation:

please like if this helped

Answer:

1/2

Step-by-step explanation:

- 9b = - 45
i need help asap pls

Answers

Answer:

b=5

Step-by-step explanation:

Answer:

b=5

Step-by-step explanation:

Not copying....

have a nice day

-5=n-8/4

What is happening to the variable?


How do you solve for the variable?

Answers

Answer:

n=-3

Step-by-step explanation:

Alrighty, now if I understood the problem correctly, we can simplify it to:

-5=n-2

We do +2 on both sides, and -5+2 is -3

So, n=-3

Answer:

n= -3

you move the variable to the other side it has to be by it self on the other side of the equal sigh

Step-by-step explanation:

-5 =n-2

-5+2=n

-3=n

n=-3

ahhhhhhhhhhhhhhhhhhhh​

Answers

Answer:

10.2

Step-by-step explanation:

Suppose there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 58.3°F​, what will be the temperature when the plane reaches an altitude of 2,000 ft​?

Answers

Answer: 55.1°F

Step-by-step explanation:

We are informed that there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky, if the plane reaches an altitude of 2,000ft, the drop in temperature will be:

= 1.6° × 2

= 3.2°F

If the temperature on the ground is 58.3°F​, then the temperature when the plane reaches an altitude of 2,000 ft will be:

= 58.3°F - 3.2°F

= 55.1°F

30 Points!!!! I NEED HELP FAST

Answers

Answer:

X = 4

Step-by-step explanation:

414 - 108 - 130 = 176

13x + 11x + 5x + 10x + 5x = 176

44x = 176

x = 4

Please help!! I'm in a hurry!

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Step-by-step explanation:

sorry bud you ran out of time reading this

A=6 b=4 c=1/3 what is 9c

Answers

Answer:

9c=3

Step-by-step explanation:If c=1/3      9/3=3

Need the answer please will give brainliest

Answers

Answer:

B.move to the left 4 units then up 7 units.

A bookstore pays $28 for a copy of a textbook. The bookstore sells the textbook for $42. What is the percent markup on the textbook?

Answers

150 percent is the right answer!

Answer:

50%

Step-by-step explanation:

28×0.50= 14

14+28= 42

#CarryOnLearning

#MarkAsBrainliest

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