Solve the equation √2 – 1 = 3.

Question 5 options:

A)

x = 4

B)

x = 16

C)

x = 8

D)

x = 2

Answers

Answer 1

Answer:

C x=8

Step-by-step explanation:

Chúc bạn ngày mới tốt lành


Related Questions

ahla
S : Assignment
乡,一石​

Answers

Answer

what's the question?

Step-by-step explanation:

looks like your question is missing information

Find the volume of the prism

Answers

Answer:

A prism is a polyhedron with two parallel, congruent faces called bases that are polygons

the sum of legs for a right triangle be 21 and their product is 40. Find the perimeter of this triangle.​

Answers

Answer:

The perimeter of the triangle is 40.

Step-by-step explanation:

The sum of legs for a right triangle is 12:

[tex] a + b = 21 [/tex]

[tex] a = 21 - b [/tex]   (1)

And their product is:

[tex] a*b = 40 [/tex]   (2)

By entering eq (1) into (2) we have:

[tex] (21 - b)b = 40 [/tex]                          

[tex] 21b - b^{2} - 40 = 0 [/tex]  

We can find the value of "b" by solving the above quadratic equation.

[tex] b_{1} = 2.1 [/tex]

[tex] b_{2} = 18.9 [/tex]

Since the two values satisfy the equation, we can use either of them to find "a". We will use b₁.      

[tex] a = 21 - 2.1 = 18.9 [/tex]                                                                              

Now, the hypotenuse of the right triangle is given by:

[tex] h = \sqrt{a^{2} + b^{2}} = \sqrt{(18.9)^{2} + (2.1)^{2}} = 19 [/tex]

Hence, the perimeter is:

[tex] P = a + b + h = 18.9 + 2.1 + 19 = 40 [/tex]

Therefore, the perimeter of the triangle is 40.

I hope it helps you!          

Câu 1: Giá trị

2
3
2020 -5 lim
- 2020
n
n n
bằng:

A.
2.

B.
.

C.
0.

D.
2
.
3

Answers

Answer:

i dont understan your language plz speak in englosh

Can some help? Plz :)

Answers

Answer:

C. 1.05 x 10^7

Step-by-step explanation:

1.75x10^4 x 600

=1050 x 10^4

=1.05 x 10^7

write the equation of the line that goes through points (0,4) (6,16)

Answers

Answer: Y= 2x

Step-by-step explanation:

Answer:

y=2x-4

Step-by-step explanation:

firstly find the gradient

m=y2-y1/x2-x1

16-4/6-0

12/6

m=2

then use the equation to find the answer

y-y1=m(x-x1)

y-4=2(x-0)

y-4=2x-0

y=2x-4

[tex]\text{Solve for 'x':}\\\\3(x+1)=12+4(x-1)[/tex]

Answers

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

[tex]x = -5[/tex]

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Solving for 'x'...}}\\\\3(x+1)=12+4(x-1)\\----------\\\rightarrow 3x + 3 = 12 + 4x - 4\\\\\rightarrow 3x + 3 = 12 -4+4x\\\\\rightarrow 3x + 3 = 8 + 4x\\\\\rightarrow 3x + 3 = 4x + 8\\\\\rightarrow3x + 3 -3 = 4x + 8 - 3\\\\\rightarrow 3x = 4x + 5\\\\\rightarrow 3x - 4x = 4x - 4x + 5\\\\\rightarrow -x = 5\\\\\rightarrow \frac{-x=5}{-1}\\\\\rightarrow \boxed{x = -5}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

x=-5

Step-by-step explanation:

3(x+1)=12+4(x-1)

3(x+1)=8+4x

3x+3=8+4x

3x+3−4x=8

-x+3=8

-x=8-3

-x=5

-x(-1)=5(-1)

-x(-1)=-5

x=-5

question on image
....​

Answers

Answer:

1/5

Step-by-step explanation:

8/40->4/20->2-10->1/5

Hope this helps!

Answer:

1\5

Step-by-step explanation:

8/40 = 4/20 = 2/10 = 1/5

en una carrera de 5 vueltas de la F1 online el jugador 1 consigue un tiempo de 2,32 minutos y el jugador 2 consigue 18 segundos mas que el jugador 1 en la segunda vuelta el jugador 1 obtiene un tiempo de 2,52 minutos y el jugador 2 20 segundos menos que el jugador 1, en la tercera vuelta ambos jugadores consiguen un tiempo de 2,18 minutos ¿Cual es la diferencia en el tiempo total de la carrera entre los jugadores 1 y 2?

Answers

Answer:

La diferencia del tiempo total de carrera entre el jugador 1 y 2 es 0.0[tex]\overline 3[/tex] minutos

Step-by-step explanation:

Primera vuelta;

El tiempo de vuelta del jugador 1 = 2,32 minutos

El tiempo de vuelta del jugador 2 = 18 segundos más que el del jugador 1

Por lo tanto, el tiempo de vuelta del jugador 2 = (2,32 + 18/60) minutos = 2,62 minutos

Segunda vuelta

El tiempo de vuelta del jugador 1 = 2,52 minutos

El tiempo de vuelta del jugador 2 = 20 segundos menos que el del jugador 1

Por lo tanto, el tiempo de vuelta del jugador 2 = (2.52 - 20/60) minutos = 2.18[tex]\overline 6[/tex] minutos

Tercera vuelta

El tiempo de vuelta del jugador 1 = 2,18 minutos

El tiempo de vuelta del jugador 2 = 2,18 minutos

El tiempo de vuelta total del jugador 1 = (2,32 + 2,52 + 2,18) minutos = 7,02 minutos

El tiempo de vuelta total del jugador 2 = (2,62 + 164/75 + 2,18) minutos = 524/75 minutos = 6.98[tex]\overline 6[/tex] minutos

La diferencia del tiempo total de carrera = (7.02 - 524/75) minutos = (1/30) minutos = 0.0[tex]\overline 3[/tex] minutos

The ages of several trees in a park are shown below:
2 years, 28 years, 2 years, 20 years, 22 years
What is the mean age of these trees?

56 years
12 years
14.8 years
26 years

Answers

Answer:

C or 14.8

Step-by-step explanation:

You just find the mean.

Arrange the numbers, add them then divide by the amount of numbers.

Hope it helps c:

Please help thank you!

Answers

Answer:

A≈376.99yd²

d= 10yd

h = 7yd

hope it helps

Venn diagram of b union b​

Answers

Answer:

let b union b be

B={2,4,6,8} and B= {1,2,3,4,5}

then B union B = {1,2,3,4,5,6,8}

Step-by-step explanation:

Venn diagram of b union b is in the attachment

Hope it is helpful to you

PLEASE HELP!
The distance to the nearest exit door is less than 100 feet.
Use d to represent the distance (in feet) to the nearest exit door.

Answers

Answer:

d < 100

Step-by-step explanation:

the distance is less than (<) 100 ft

d < 100

The sentence translates to the inequality  d < 100

There's not much else to say about this problem. We just simply replace the "less than" wording with its corresponding symbol. We can think of the inequality sign as an alligator mouth that always wants to eat the larger value (so the open ended side is facing toward the larger value).

solve the linear equation
x/2-3x/4+5x/8=9
I need the full solution X by 2 minus 3x by 4 + 5x by 8 equal to 9 ​

Answers

Answer:

24

Step-by-step explanation:

x/2-3x/4+5x/8=9

Or,(4*x-2*3x+5x)/8=9. (taking LCM)

Or, (4x-6x+5x)/8=9

Or, 3x=9*8

Or, x = 72/3

so, x=24.

The sides OP and RO of triangle POR are produced to points S and T respectively. If ∠SPR = 145° and ∠POT = 115° , find ∠PRO

Answers

Answer:

[tex]\angle PRQ = 80[/tex]

Step-by-step explanation:

Given

[tex]\angle SPR = 145^o[/tex]

[tex]\angle POT = 115^o[/tex]

See attachment

Required

Find [tex]\angle PRO[/tex]

First, calculate [tex]\angle RPO[/tex]

[tex]\angle RPO + \angle SPR = 180[/tex] --- angle on a straight line

So, we have:

[tex]\angle RPO + 145 = 180[/tex]

Collect like terms

[tex]\angle RPO = 180 - 145[/tex]

[tex]\angle RPO = 35[/tex]

Next, calculate PQR

[tex]\angle POR + \angle POT = 180[/tex]

So, we have:

[tex]\angle POR + 115 = 180[/tex]

Collect like terms

[tex]\angle POR = 180-115[/tex]

[tex]\angle POR = 65[/tex]

So, PRO is calculated as:

[tex]\angle PRO + \angle POR + \angle RPO = 180[/tex] --- angles in a triangle

So, we have:

[tex]\angle PRO + 65 + 35= 180[/tex]

[tex]\angle PRO + 100= 180[/tex]

Collect like terms

[tex]\angle PRO = 180-100[/tex]

[tex]\angle PRO = 80[/tex]

Mackenzie is designing a rectangular greenhouse. Along one wall is a 7-foot storage area and 5 sections for different kinds of plants. On the opposite wall is a 4-foot storage area and 6 section for plants. All the plant sections are equal length. What is the length of the wall?

Answers

Answer:

3 ft

Step-by-step explanation:

4 + 6x = 7 + 5x

6x - 5x = 7 - 4

x = 3

Explain the relationship of the meaning of the word isometric to the properties of an isometric or rigid transformation

Answers

Step-by-step explanation:

The iso parts of isometric means same, and It is similar becuase rigid trtransformation and the metric parts means measure. Basically isometric means same measure. Rigid transformation preserve "same measures" like angles and side lengths.

pls pls help help help

Answers

Answer:

the diameter form for your help today with the app

Step-by-step explanation:

pa brain less

Calculate the volume of each solid. Use 3.14 for pi. Round answers to the nearest whole number.

Answers

Answer:

See below.

Step-by-step explanation:

Rectangle Volume = Length x Width x Height

Rectangle Volume = 15 x 6 x 8

Rectangle Volume = 720 in^2

Cube volume = s^3

Cube volume = 9^3

Cube volume = 729

Cylinder Volume = [tex]\pi[/tex]r^2h

Cylinder Volume = [tex]\pi[/tex]4^214

Cylinder Volume = [tex]\pi[/tex]1614

Cylinder Volume = [tex]224\pi[/tex]

Answer

720, 729, 703

Step-by-step explanation:

your welcome

Please help. Somebody give an answer to this question please. I need a step by step explanation as well.

Answers

Answer:

15d² + 7d - 4

Step-by-step explanation:

Distribute

(5d + 4)(3d -1)

5d (3d - 1) + 4(3d - 1)

Distribute

15d² - 5d + 4(3d- 1)

Distribute

15d² - 5d + 12d- 4

Simplify

15d² + 7d - 4

ANSWER:
15d^2+7d-4

STEP BY STEP:
you can use F.O.I.L. to solve this (first,outer,inner,last)

first you multiply both of the first values in each set of parentheses, 5d and 3d to get 15d^2, then you multiply the terms on the outside, 5d and -1 to get -5d. then multiply the inner values, 4 and 3d to get 12d. because 12d and -5d are like terms, you combine them to get 7d. lastly, you multiply the last values in each parentheses, 4 and -1 to get -4

Find an equation of a line with a slope of -4 and having
the point (2,0) on the line. Then graph the line.

Answers

Answer:

y = -4x + 2

Step-by-step explanation:

The formula for slope is: y = mx + b

Where m is slope and b is when the line intersects the y-axis.

Plug in:

y = -4x + 2

             

The two is the point in the line, and -4 is the slope.

Hope this helps.

Câu 1: Trong các mệnh đề sau, mệnh đề nào là không đúng ?

A. Nếu a // b và (α) vuông góc a thì (α) vuông góc với b

B. Nếu (α) // (β) và a vuông góc với (α) thì a vuông góc với (β)

C. Nếu a và b là hai đường thẳng phân biệt và a vuông góc (α), b vuông góc với (α) thì a // b

D. Nếu a // (α) và b vuông góc a thì b vuông góc (α)

Answers

Answer:

Hey can you ask this question in English so I can no answer this question in English and then you can convert that my answer in your language as you're I'm Indian so I don't know this language

Step-by-step explanation:

Please don't you think that I'm doing this for points I think I should know this question so can you please answer this you're this and English

(x⁴ + 3x³ – 2x² + 5) + (2x⁴ – 5x³ + 4x – 15).

Answers

Answer:

[tex]\left(x^4+3x^3-2x^2+5\right)+\left(2x^4-5x^3+4x-15\right)[/tex]

[tex]=[/tex] [tex]x^4+3x^3-2x^2+5+2x^4-5x^3+4x-15[/tex]

[tex]=x^4+2x^4+3x^3-5x^3-2x^2+4x+5-15[/tex]

[tex]=x^4+2x^4-2x^3-2x^2+4x+5-15[/tex]

[tex]=3x^4-2x^3-2x^2+4x+5-15[/tex]

[tex]=3x^4-2x^3-2x^2+4x-10[/tex]

[tex]OAmalOHopeO[/tex]

If the number of degrees in a certain angle added to the number of grades in the angle is 76, find the angle in degrees.

Answers

x=angle
x+(10/9)x=(19/9)x=76
x=(76*9/19)=36

I need help on this this is very hard. I need the answer right now. Wrong answer=report

Answers

The remainder is 5 rm 8

Find the missing variables

Answers

Answer:

90

Step-by-step explanation:

Answer:

[tex] \cos(60) = \frac{9}{a} \\ \frac{1}{2} = \frac{9}{a} \\ a = 18 \\ \\ \\ \tan(60) = \frac{b}{9} \\ \sqrt{3} = \frac{b}{9} \\ b = 9 \sqrt{3} [/tex]

I hope I helped you ^_^

how do I solve this pls help khan academy is no smart

Answers

Answer:

3. If that doesn't work, try 1/3

Step-by-step explanation:

Figure A has a length of 9 and figure B has a length of 3. 9 divided by 3 is 3.

what is the equation of linear regression that fits the data​

Answers

Answer:

Option D

Step-by-step explanation:

From the table attached,

Ordered pairs to be plotted → (1, 472.08), (2, 454.26), (3, 444.95), (4, 439.49), (5, 436.55)

By using linear regression calculator,

Equation of the regression line → y = -8.583x + 475.215

Option D will be the answer.

Suppose you invest $1800 at an annual interest rate of 3.3% compounded
continuously. How much will you have in the account after 1.5 years?

Answers

Answer:

$1,890

Step-by-step explanation:

To find the amount, we use the compound interest formula here

we have this as;

A = P(1 + r/n)^nt

Where ;

P is the amount invested which is $1,800

r is the interest rate which is 3.3% annually (3.3/100 = 0.033)

n is the number of times yearly interest is compounded which is 1 time yearly

t is the number of years which is 1.5 years

substituting these values, we have

A = 1800( 1 + 0.033)^(1 * 1.5)

A = 1,890

Which are the
solutions of x2 = -7x - 8?

Answers

Answer: I think the answer is D

Step-by-step explanation:

Answer:

D is the answer (The last option)

Step-by-step explanation:

Other Questions
You want to have $5 million in real dollars in an account when you retire in 20 years.The nominal return on your investment is 10 percent and the inflation rate is 3 percent.What is the real amount you must deposit each year to achieve your goal? Which behavior would best describe someone who is productive at work ? a) Multitasks as much as possible b) Takes frequent breaks to answer personal calls and emails O c) Sticks to routines and prioritizes work d) Waits for directives from the boss before simple tasks What is the answer with explaining GIVING 50 POINTS FOR ANSWER AND BRAINIEST!Read the paragraph.In science class, we like to spy cool things going on in our experiments. We use magnifying glasses to observe tiny growths. I look forward to every class, but it creeps me out when my classmate stares at me while I conduct experiments.Based on the context, which statement best describes the connotations of the underlined words? A. Spy and observe are neutral, and stares is positive. B. Spy is positive, observe is neutral, and stares is negative. C. Spy is neutral, observe is positive, and stares is neutral. D. Spy is positive, observe is negative, and stares is positive. in geographical terms what do you call plants and animals write an article on *DISCRIMINATIONS THAT PREVAIL IN INDIA* Help me please please help me please YXPls help me youll get 29 points A galaxy that has an undefined shape is best classified as a(n)galaxy. When researchers looked at larger trends in childbearing, they found that peoples childbearing is often affected by How did technological advances on that time make sailors more capable to explore distant lands? Enlightenment thinking placed value on scientific knowledge and thought. Based on "Sinners in the Hands of an Angry God," which best describes the relationship between Enlightenment thinking and the thinking of Edwards's followers?The beliefs of the two groups were fundamentally the same.The beliefs of the two groups directly opposed each other.The beliefs of Edwards's followers evolved directly from those emphasized in the Enlightenment.The beliefs of the two groups were similar, with the Enlightenment placing more emphasis on science. Find the special product:(r + 5)^2 Racial socialization in the African American communityA. attempts to hide the realities of being African American in AmericaB. has proven to be ineffectiveC. discourages any sort of preparation for racial discrimination for fear of "shaping" the minds of young childrenD. encourages the teaching of cultural pride and preparation for racial discrimination If a nail salon hires an additional worker, that worker can service 8 additional customers per day. The average nail service fee is $30. The most the salon would be willing to pay that groomer is Find the area of the image below If anyone knows pls answer Which pair shows equivalent expressions?O 2x+10=-2(x-5)O-2(x+5)=2x-100 -2x-10=-2(x+5)O -2(x-5)=-2x-10 You just sold 900 shares of Alcove stock at a price of $34.08 a share. Last year you paid $39.20 a share to buy this stock. You received dividends totaling $1.04 per share. What is your total capital gain on this investment?a. $5,544 44b. -$3,672c. -$5,544d. -$4,608e. $4,608 Two corresponding sides of similar triangles have the lengths 6 cm and 16 cm. What is the ratio, expressed as a decimal?