jika ⁴log 9 = 1/x maka ²⁷log 8 akar 2 = ....a. 7/6x b. 7x/6c. 6/7xd. 6x/7e. - 7/6x
1. jika ⁴log 9 = 1/x maka ²⁷log 8 akar 2 = ....a. 7/6x b. 7x/6c. 6/7xd. 6x/7e. - 7/6x
Jawaban:
²Log3=1/x
³Log2=x
[tex] log_{27}(8 \sqrt{2} ) = log_{ {3}^{3} }( {2}^{ \frac{7}{2} } ) = \frac{7}{2} \div 3( log_{3}(2) = \frac{7}{6} x[/tex]
B
barangkali ada yg ditanyalan dm dan follow ig @alwi_dj
2. [] Math✍️SOAL :7x+6=6x+7
→ 7x + 6 = 6x + 7
→ 7x - 6x = 7 - 6
→ x = 1
[tex]\purple{\boxed{\blue{\boxed{\green{\star{\orange{\ \: \: \mathcal{JK} \: \: \: {\green{\star}}}}}}}}} [/tex]
Penjelasan7x + 6 = 6x + 7
7x - 6x = 7 - 6
x = 1
[tex]~[/tex]
Detail JawabanMapel: MatematikaKelas: 7 (1 SMP)Materi: SPLVKode Soal: 2Kode Kategorisasi: 7.2.63. 7x + 6 = 6x +7yang jwb cuman org 1.
Jawaban:
7x + 6 = 6x +7
7x - 6x = 7 - 6
x = 1
Jadijawabannya
x=1
Penjelasan dengan langkah-langkah:
7x + 6 = 6x + 7
7x - 6x = 7 - 6
x = 7 - 6
x = 1
» Detail JawabanMapel : Matematika
Kelas : 8
Materi : PLSV
Bab : -
Kode Soal : 2
4. smailllll;)soal = 7x+6=6x+7note = jangan di laporinnn dongg.......
Jawaban:
7x+6=6x+7
7x - 6x = 7-6
x = 1
semoga membantu
5. salah satu faktor 6×[tex]6x {}^{2} + 7x - 5 = [/tex] +7×-5 adalah
Jawaban:
(3x+5) (2x-1)
Penjelasan:
[tex]6x^{2} + 7x - 5 \\ = (6x + 10)(6x - 3) \\ = (3x + 5)(2x - 1)[/tex]
#backtoschool2019
6. 1. 9x²-7x+6=4. 13x²-5x-6=3. 12x²+6x-7=
Jawab:
Ketiga persamaan diatas merupakan persamaan kuadrat. Ketiga persamaan tersebut tidak memiliki faktor yang membuat persamaan tersebut bernilai nol, artinya grafik fungsinya tidak pernah menyentuh sumbu x.
Semoga membantu! :)
7. Suku banyak f(x) jika dibagi (x+1) sisanya 1 dan jika dibagi (2x+3) sisanya -2. jika suku banyak f(x) dibagi 2x^2 + 5x + 3 maka sisanya adalah a. 6x-7 b. 6x+7 c. 7x+6 d. 7x-6 e.-7x+6
2x.2+5x+3
=7x+6 (c)
maafKaloSalahMisal :
f(x) : 2x^2 + 5x + 3 hasilnya H(x) dan sisa ax + b
f(x) = (2x^2 + 5x + 3) H(x) + ax + b
f(x) = (x + 1)(2x + 3) H(x) + ax + b
f(-1) = (-1 + 1)(2(-1) + 3) H(-1) + a(-1) + b => -a + b = 1
f(-3/2) = (-3/2 + 1)(2(-3/2) + 3) H(-3/2) + a(-3/2) + b => -3/2 a + b = -2
-a + b = 1 (× 2)
-3/2 a + b = -2 (× 2)
-2a + 2b = 2
-3a + 2b = -4
-------------------- -
a = 6
-a + b = 1
-6 + b = 1
b = 1 + 6
b = 7
Jadi , sisa pembagiannya adalah 6x + 7 (b)
8. Sebuah segitiga memiliki ukuran panjang sisi berturut-turut (x + 6) cm, (2x - 5) cm dan (3x + 6) cm. Keliling segitiga tersebut adalah... cma.(6x - 7)b.(7x - 6)c.(6x + 7)d.(7x + 6)
Jawaban:
Segitiga adalah suatu bangun datar yang seluruhsudutnyaberjumlah 180°.
Beberapa jenis segitiga berdasarkanpanjangsisinya,yaitu ;
1. Segitiga Sama Sisi 2. Segitiga Sama Kaki 3. Segitiga SembarangBeberapa jenis segitiga berdasarkanbesarsudutnya,yaitu ;
1. Segitiga Tumpul 2. Segitiga Lancip 3. Segitiga Siku - Siku (90°)Rumus - Rumus Segitiga
[tex]luas = \frac{1}{2} \times alas \times tinggi \\ \\ keliling = jumlah \: seluruh \: sisinya[/tex]
________________Keliling = (x + 6) + (2x - 5) + (3x + 6)
Keliling = 6x + 7 [ Opsi C ]
________________Pelajari Jugabrainly.co.id/tugas/13973281
brainly.co.id/tugas/1504015
Detail JawabanMapel : Matematika
Kelas : 7
Materi : Segitiga dan Segiempat
Kode Soal : 2
Kode Kategorisasi : 7.2.4
9. Q.1. 6x + 6 - 7x + 52. 7⁴#Good LuckNt : Persiapan :v
Jawaban:
1) –x + 11
2) 2.401
Penjelasan dengan langkah-langkah:
1) 6x + 6 - 7x + 5 =
= 6x + 11 – 7x
= –x+11
2) 7⁴ =
= 7.7.7.7
= 49.7.7
= 343.7
= 2.401
Jawaban:
1. 6x + 6 - 7x + 5
= (6x - 7x) + (6 + 5)
= -x+11
2. 7⁴
= 7 × 7 ×7 × 7
= 49 × 49
= 2.401
Cmiiw10. 4x²= 7 x-6x²+ 10= 7x+6Tlng.....Persamaan kuadrat
Pertama
4x^2 = 7x
4ײ-7×=0
4x((4ײ/4×)-(7×/4×)=0
4×(×-7/4)=0
4×=0,atau x-7/4=0
x=^0/4,atau x=7/4
x=0,atau x=7/4
HP [0,7/4
Kedua Nanti Ada di gambar YaaaaaaJawab:
(Nomor satu) 4x² = 7x
Hp = {0, ⁷/₄} (betul)
(Nomor dua) -6x²+ 10 = 7x+6
[tex]\bf Hp=\rm\left[\frac{\sqrt{145}-7}{12}~,~-\frac{\sqrt{145}+7}{12}\right][/tex] (betul)
Penjelasan:
(Nomor satu)
4x² = 7x
4x² - 7x = 0
4x((4x²/4x)-(7x/4x) = 0
4x(x-⁷/₄) = 0
4x = 0, atau x -⁷/₄ = 0
x = ⁰/₄ atau x = ⁷/₄
x = 0 atau x = ⁷/₄
Hp = {0, ⁷/₄} (betul)
(Nomor dua)
-6x²+ 10 = 7x+6
6x² + 7x + 6 - 10 = 0
6x² + 7x - 4 = 0
[tex]\frac{6}{6}x^2+\frac{7}{6}x-\frac{4}{6}=0\\\\x^2+\frac{7}{6}x-\frac{4}{6}=0\\\\x^2+\frac{7}{6}x=\frac{4}{6}\\\\x^2+\frac{7}{6}x+(\frac{1}{2}\cdot\frac{7}{6})^2=\frac{4}{6}+(\frac{1}{2}\cdot\frac{7}{6})^2\\\\x^2+\frac{7\cdot2}{6\cdot2}x+(\frac{7}{12})^2=\frac{4}{6}+(\frac{7}{12})^2\\\\x^2+\frac{14}{12}x+(\frac{7}{12})^2=\frac{4(24)}{6(24)}+\frac{7^2}{12^2}\\\\x^2+2x(\frac{7}{12})+(\frac{7}{12})^2=\frac{96}{144}+\frac{49}{144}[/tex]
[tex](x+\frac{7}{12})^2=\frac{145}{144}\\\\x+\frac{7}{12}=\sqrt{\frac{145}{144}}\\\\x+\frac{7}{12}=\frac{\pm\sqrt{145}}{\sqrt{144}}\\\\x+\frac{7}{12}=\frac{\pm\sqrt{145}}{12}\\\\x=\frac{\pm\sqrt{145}}{12}-\frac{7}{12}\\\\x=\frac{\pm\sqrt{145}-7}{12}\\\\\rm Hp=\left[\frac{\sqrt{145}-7}{12}~,~\frac{-\sqrt{145}-7}{12}\right]\\\\\bf Hp=\rm\left[\frac{\sqrt{145}-7}{12}~,~-\frac{\sqrt{145}+7}{12}\right][/tex]
(xcvi)
11. 1. 5X(-4)=....6. 8x3=2.-3×4=.....7. -7X(-3) = ....3. -6x (-7)=....8. 6X(-2) = ....-6×11=....9. -9x2 = ....5. -5X (-3) = ....10.-6X(-4)= ....
Jawaban:
1.-20
6.24
2.-12
7.21
3.42
8.-12
-66
9.-18
5.15
10.24
12. smailllll;)soal = 7x+6=6x+7note = jangan di laporinnn dongg
Penjelasan dengan langkah-langkah:
7x+6=6x+7
7x-6x = 7-6
x = 1
by = mohfrendykurniawan7x+6=6x+7
7+6−6=6+7−6
7x=6x+1
7x=6x+1
7x−6x=
6x+1−6x
x=1
[tex]\huge{\bold{ \red{a}}}\bold{ \orange{n}} \bold{ \color{FFFF00}{s}}\bold{ \green{w}} \bold{ \blue{e} \bold{ \pink{r}} \bold{ \color{f9f295}{by}}}\\\color {B2FF66} {e}\color{66FF66}{d}\color{66FFFF} {y}\color{66B2FF}{s}\color{6666FF} {o}\color {B266FF}{n}\color{FF66FF}{ \: r} \color {FF66B2}{ay}\color{dfbd69} {86}\color {FFCC99}{}[/tex]
13. smailllll;)soal = 7x+6=6x+7note = jangan di laporinnn dongg..
[tex]7x + 6 = 6x + 7 \\ 7x - 6x = 7 - 6 \\ x = 1[/tex]
..Penjelasan:
7x pindah ke 7
jadi
-7 + 6 = 6x - 7x
-1 = -x
x = 1
note: kalau x nya - harus pindah ruas
14. 1)6x + 8 = 202)3x - 6 = 183)5x + 2x + 3 = 244)7x - 2 = 5x + 185)6x + 5 = 3x + 236)2x - 7x = 207)- 6x + 3x = 24 + 68)9 + 3 = 3x + 69)6x + 5x - 7 = 1510)8x + 5 = 10 + 7tolong di jawab ya☺✌
1) X=2
2) X=-8
3) X=3
4) X=10
5) X=6
6) X=-4
7) X=-10
8) X=2
9) X=2
10) X=14/8(pecahan campuran)
Langkah-langkahpenyelesaian:
1) 6x + 8 = 20
8 - 20 = -6x
-12 = -6x
X = -12/-6
X = 2
2) 3x - 6 = 18
-6 - 18 = -3x
24 = -3x
X = 24/-3
X = -8
3) 5x + 2x + 3 = 24
7x = 24-3
7x = 21
X = 21/7
X = 3
4) 7x - 2 = 5x + 18
7x - 5x = 18 + 2
2x = 20
X = 20/2
X = 10
5) 6x + 5 = 3x + 23
6x - 3x = 23 - 5
3x = 18
X = 18/3
X = 6
6) 2x -7x = 20
-5x = 20
X = -4
7) -6x + 3x = 24 + 6
-3x = 30
X = 30/-3
X = -10
8) 9 + 3 = 3x + 6
12 - 6 = 3x
6 = 3x
X = 6/3
X = 2
9) 6x + 5x -7 = 15
11x = 15 + 7
11x = 22
X = 22/11
X = 2
10) 8x + 5 = 10 + 7
8x = 10 + 7 - 5
8x = 17 - 5
X = 12/8
X = 1 4/8
Sekian dari saya, semoga membantu dan semoga dapat dipahami.. Thx:)
Maaf kalau slh..
Kelas:VII
MATAPELAJARAN:MATEMATIKA
MATERI:ALJABAR
#Math
15. berapa penyelesaian: (1). 2x² + 9x + 7 = 0 (2). 3x² - 11x + 6 = 0 (3). 5x² + 3x - 8 = 0 (4). 7x² - 2x - 5 = 0 (5). 6x² + 17x + 5 = 0 (6). 6x² - 7x - 5 = 0 (7). 10x² + 9x -7= 0
nomer 1
2x^2 + 9x + 7 = 0
2x^2 + 2z + 7x + 7
2x( x + 1) + 7 ( x + 1)
(x + 1) (2x + 7)
x + 1 = 0
x = -1
2x + 7 = 0
2x = -7
x = -7/2
hp={-1 , -7/2}
nomer 2
3x^2 - 11x + 6
3x^2 - 9x - 2x + 6
3x(x - 3) - 2(x - 3)
(3x - 2) ( x - 3)
3x - 2 = 0
3x = 2
x = 2/3
x - 3 = 0
x = 3.
{3, 2/3}
nomer 3
5x^2 + 3x - 8
(5x + 8)(x - 1)
x = -8/5
x = 1
nomer 4
7x^2 - 2x - 5
(7x + 5)(x -1)
x = -5/7
dan
x = 1
nomer 5
6x^2 + 17x + 5
(3x + 1) (2x + 5)
x = -1/3
dan
x = -5/2
nomer 6
6x^2 - 7x - 5
(2x + 1)(3x - 5)
x = -1/2
dan
x = 5/3
nomer 7
10x^2 + 9x - 7
(5x + 7)( 2x - 1)
x = -7/5
dan
x = 1/2
16. smailllll;)soal = 7x+6=6x+7note = jangan di laporinnn dongg.......
>>Aljabar<<
>>Soal:
7x +6 = 6x + 7
>>Jawab:
7x + 6 = 6x + 7
7x -6x = 7 - 6
x = 1
>>Kesimpulan:
Nilai x adalah 1
Semoga Membantu.....
#Mohondikoreksi
17. x = 7tentukan7x + 6x + 309x 6³ + x³ = 945tentukan nilai x
7x + 6x + 309x
77 + 67 + 3.097
77 + 3.164
= 3.241
6³ + x³ = 945
216 + x³ = 945
216 + x³ - 216 = 945 - 216
x³ = 945 - 216
x³ = 729
x = ³√729
x = 9
Jawaban:
= 7x + 6x + 309x
= 77 + 67 + 3097
= 144 + 3097
= 3.241> 6³ + x³ = 945
> ( 6 × 6 × 6 ) + x³ = 945
> 216 + x³ = 945
> 216 + x³ + 216 = 945 - 216
> x³ = 945 - 216
> x³ = 729
x = ∛729
x = 9Akar3dari729=9.(9×9×9=729)
18. Faktorkan 1) 6x^7 + 3x^4 - 9x^3 2) x^6 + x^4 + 7x^3 + 7x
1. 6x^7 + 3x^4 - 9x³ = 9x^11 - 9x³ = x^8
2. x^6 + x^4 + 7x³ + 7x = x^10 + 14x^4 = 14x^14
*Semoga. Membantu Anda*
19. 32. Hasil dari 5 (3x2 - 6x + 7)dx adalah...A. 6x-6B. x2 - 6x + 7C. x2 + 3x2 + 7xD. X3 - 3x2 + 7xE. x3 - 3x2 + 7
Penyelesaian:
∫ (3x^2 - 6x + 7) dx
= (3/3) x^3 - (6/2) x^2 + 7x + C
= x^3 - 3x^2 + 7x + C
====================
Detil JawabanKelas: 11
Mapel: Matematika
Bab: Integral Tak Tentu
Kode: 11.2.10
KataKunci: integral
20. genapin 2000 yokhargai 6 + 7 - 2 =6x + 7x - 3x =
Jawaban:
6 + 7 - 2
13 - 2
= 11
6x + 7x - 3x
(6+7)x - 3x
13x - 3x
= 10x
PENYELESAIAN := 6 + 7 - 2
= (6 + 7) - 2
= 13 - 2
= 11
= 6x + 7x - 3x
= (6 + 7)x - 3x
= (13 - 3)x
= 10x
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