If f(x) = 1/9 x-2 , what is f–1(x)?

Answers

Answer 1
Answer:

Answer:

f^(-1)(x)=9x+2

Step-by-step explanation:

Given: f(x)=(1)/(9)(x-2)

We need to find the inverse of f(x).

Step 1: Set f(x) = y

y=(1)/(9)(x-2)

Step 2: Switch x and y

x=(1)/(9)(y-2)

Step 3: Solve for y, Isolate y

x=(1)/(9)(y-2)

Multiply by 9 both sides

9x=y-2

Add 2 both sides

9x+2=y

y=f^(-1)(x)

Hence, f^(-1)(x)=9x+2

Answer 2
Answer: Hello,

y=1/9 x-2
==>x=1/9 y -2
==>9x=y-18
==>y=9x+18

f^(-1)(x)=9x+18


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Brianna asked 45 students if they would vote for her to be student council president. She used her calculator to compare the number of students who said yes with the total number of students. Her calculator showed the result as 0.6222... 1. Write this number as a fraction (Steps) 2. How many students said they would vote for Brianna?

3. Terdapat dua bidang saling berpotongan dan tidak berhimpitan makaperpotongannya berbentuk,
c. bidang
a. titik
b. garis
d. ruang​

Answers

Kelas : VII (1 SMP)

Materi : Geometri

Kata Kunci : Garis, Sisi, Rusuk, Bidang

Pembahasan :

Titik adalah bentuk yang paling dasar dalam geometri. Titik ditulis dengan tanda titik dan diberi nama dengan huruf besar. Sebuah titik hanya untuk menunjukkan posisi dan memiliki ukuran nol (panjang nol, lebar nol, dan tinggi nol).

Garis adalah kumpulan titik-titik yang memanjang secara tak berhingga ke dua arah. Sebuah garis memiliki panjang tidak terbatas.

Ruas garis adalah potongan sebuah garis. Sebuah ruas garis memiliki dua titik ujung dan diberi nama menurut kedua titik ujungnya.

Sinar garis merupakan bagian dari sebuah garis, namun hanya memiliki satu titik ujung. Sebuah sinar garis diberi nama dengan huruf titik ujungnya dan titik lain pada sinar garis tersebut.

Sudut adalah dua sinar yang memiliki titik ujung yang sama.

Titik ujung tersebut dinamakan titik sudut dan sinar-sinar garisnya dinamakan sisi-sisi sudut. 

Bidang adalah kumpulan titik yang jumlahnya tak terhingga yang membentuk permukaan rata yang melebar ke segala arah sampai tak terhingga. Sebuah bidang memiliki panjang tak terbatas, lebar tak terbatas, dan tinggi nol. Sebuah bidang biasanya digambarkan dengan gambar segi empat dan diberi nama dengan satu huruf besar.

Rusuk adalah suatu garis yang merupakan pertemuan dari dua sisi bidang.

Dua bidang berpotongan bila terdapat garis persekutuan atau garis potong antara kedua bidang tersebut.

Dua bidang sejajar bila antara kedua bidang tersebut tidak memiliki garis persekutuan.

Dua bidang berhimpit bila setiap titik terletak pada kedua bidang tersebut.

Mari kita lihat soal tersebut.

Jika dua bidang saling berpotongan dan tidak berhimpitan, maka perpotongannya berbentuk garis.

Jadi, jawabannya adalah B.

Semangat!

Name the number that is one more than a given number.

Answers


Let's assign the variable 'n' to your given number. 

If the given number is 'n', then the number one more than 'n' can be shown in the expression n+1

Answer= n+1

Factor the trinomial: x2 + 12x + 32A. (x - 2)(x + 16)


B. (x + 16)(x + 16)


C. (x + 4)(x + 8)


D. prime

Answers

x^2 + 12x + 32 = x^2 + 4x + 8x + 32 = x(x + 4) + 8(x + 4) = (x + 4)(x + 8)

For a craft project, four students each chose three pieces of wire from a box.Don’s wires measure 3 inches, 5 inches, and 12 inches.
Margo’s wires measure 6 inches, 8 inches, and 14 inches.
Sonji’s wires measure 12 inches, 8 inches, and 17 inches.
Liam’s wires measure 16 inches, 8 inches, and 27 inches.

Which student chose pieces that can be used to construct a triangle?

Don
Margo
Sonji
Liam

Answers

Answer:

Sonji

Step-by-step explanation:

Given :

We will use the third important property of triangles is the triangle inequality rule, which states: the length of a side of a triangle is less than the sum of the lengths of the other two sides and greater than the difference of the lengths of the other two sides.

So, applying this property in each case:

Case 1. Don’s wires measure 3 inches, 5 inches, and 12 inches.

Now using property

since sum of two sides = 3+5 =8

But third side 12 is not less than 8

So, Don’s wire cannot be used .

Case 2. Margo’s wires measure 6 inches, 8 inches, and 14 inches.

Now using property

since sum of two side :8+6=14

But third side 14 is not less than 14

So, Margo’s wire cannot be used .

Case 3. Sonji’s wires measure 12 inches, 8 inches, and 17 inches.

Now using property

since sum of two side :12+8=20

third side 17 is  less than 20

Now , difference of two sides : 12-8=4

third side 17 is greater than 4

So, Sonji’s wire can be used .

Case 4. Liam’s  wires measure 16 inches, 8 inches, and 27 inches.

Now using property

since sum of two side :16+8 =24

But third side 27 is not less than 24

So, Liam’s wire cannot be used .

Hence sonji's wire can be used to construct a triangle



Sonji's.

The third important property of triangles is the triangle inequality rule, which states: the length of a side of a triangle is less than the sum of the lengths of the other twosides and greater than the difference of the lengths of the other two sides.

a teacher needs 70 lengths of string cut to 40 cm each. If balls of string are 10 m long how many balls will be needed

Answers

The balls need for the given question is 28.

Given-

Total required string is 70.

The length of the required string is 40 cm.

The length of the ball of string is 10 m.

Convert the length of ball in centimetre from meter. We know that one meter has hundredcentimetres. Thus ten meters is,

=10* 100

=1000

Hence the length of the ball of string is 1000 cm.

Now the string is cut thus we need two lengths of string. Therefore,

=40* 2

=80

Two length of string is 80 cm.

Now this is the half times the lengths of the seventy. Thus,

=(70)/(2) *{80}

=2800

For this 2800 cm string we need 1000 cm string ballsn are,

n=(2800)/(1000)

n=28

Hence, the balls need for the given question is 28.

For more about the units follow the link below-

brainly.com/question/15602440

A meter is 100 cm. A ball of string has 10m of string, and you multiply 10m by 100cm, you get 1,000cm. Then you multiply 40cm by 2, and you get 80cm, or two lengths of string. Then you multiply 35, which is half of 70, by 80, and that is 2,800 cm.
2,800
÷40cm=70
And 100cm=1m.
The teacher will therefore need 28 balls of string.

What's the square root of 119?

Answers

10.90871211463571 is the square root of 119