Solve the inequality 7x≥49
1. Solve the inequality 7x≥49
Jawaban:
x = {7 , 8 , 9 , 10...}
Penjelasan dengan langkah-langkah:
= 7x ≥ 49
= 7x : 7 ≥ 49 : 7
= x ≥ 7
x = {7 , 8 , 9 , 10 , 11 12....}
2. solve the inequality. 5x - 3 > 9
[tex]5x - 3 > 9 \\ 5x > 9 + 3 \\ 5x > 12 \\ x > \frac{12}{5} \\ x = \frac{12}{5} \: atau \: 2 \: \frac{2}{5} \: atau \: 2.4[/tex]
3. solve the inequality k^2-4k+3<0
Jawaban:
1<k<3
(1,3)
semoga bermanfaat
4. say if the following sentence are : simple ,compound,complex or compound complex1. the bell rang
The bell rang.
The sentence above is simple
5. Hasil √a² - 12ab + 36 b² = A. a + 2b B. a - 2b C. a + 6b D. a - 6b JAWAB DENGAN BENAR... HARUS MENGGUNAKAN CARA...!!!!1
[tex]\sqrt{a^2-12ab+36b^2} \\ \sqrt{(a-6b)(a-6b)} \\ \sqrt{(a-6b)^2} \\ a-6b[/tex]
6. Hasil bagi dari 6b⁵ : 3b³ adalah .... *2b³2b⁵2b2b²
Jawaban:
[tex] \frac{ {6b}^{5} }{ {3b}^{3} } = 2 {b}^{5 - 3} = {2b}^{2} [/tex]
7. Quiz (+50) ptsSolve the inequality [tex]6 < 2 - 4x < 10[/tex]where x is a member of the set of integers.
Penjelasan dengan langkah-langkah:
6 < 2 - 4x < 10
= 6-2 < -4x < 10 - 2
= 4 < - 4x < 8
= 4/-4 > x > 8/-4
= -1 > x > -2
= -2< x < -1
So, the solution is -2 < x < -1
8. solve the inequality [tex] 2^{1-x}- 2^{x+2} \ \textless \ 7 [/tex] tolong dong
[tex] 2^{1-x} - 2^{x+2}\ \textless \ 7 \\ 2 ^{1}.2 ^{-x} - 2^{x}. 2^{2} \ \textless \ 7[/tex]
*Kalikan seluruhnya dengan [tex]2 ^{x} [/tex]
[tex]2-2 ^{2x}.4\ \textless \ 2^{x} .7 [/tex]
*Misalkan [tex]2 ^{x}=a [/tex]
[tex]2-a^{2} .4\ \textless \ a.7 \\ 2-4a ^{2} -7a\ \textless \ 0 \\ 4a ^{2}+7a-2\ \textgreater \ 0 \\ (4a-1)(a+2)\ \textgreater \ 0 [/tex]
4a - 1 > 0 atau a + 2 > 0
4a > 1 atau a > -2
a > [tex] \frac{1}{4} [/tex] atau a > -2
*a > -2 tidak dapat dikerjakan, karena hasil logaritma dari bilangan negatif memiliki hasil yang tidak dapat didefinisikan.
[tex]2^{x}\ \textgreater \ \frac{1}{4} [/tex]
[tex]x\ \textgreater \ log_{2} (\frac{1}{4}) [/tex]
[tex]x \ \textgreater \ -2[/tex]
9. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
10. Bentuk sederhana dari 13(3a−6b)−12(4a+2b)=....
13(3a - 6b) - 12(4a + 2b)
= 39a - 78b - 12(4a + 2b)
= 39a - 78b - 48a - 24b
= -9a - 78b - 24b
= -9a - 102b ✔
11. 1. Hasil dari -3(a - 2b + 5) adalahA-3b = 15B-3a + 6b - 15C -36+6bD. 6b - 15
semoga membantuuuu yaaaaaa
12. hasil dari 12 + 3a - 6b + 2b + 7a + 1 adakah
Jawaban:
3a-6b+7)+(13a-2b+4)=-3a+13a-6b-2b+7+.
4
=10a-8b+11
=11+2(5a+4b)
13. 8a-7c=12 , 5a+2b=17 , dan 6b-4c=8 maka
Walaupun angkanya jelek, ini jawabannya
14. 6b²+b-12:2b+3= tolong jawab dong!
6b² + b - 12 : 2b + 3 = 6b² + b - 6b + 3
= 6b² - 5b + 3
Semoga membantu
15. two times a number plus 5 less then 25.solve the inequality!thx for the help
2x + 5 < 25 2x < 20 x < 10 semoga membantu kak
16. He asked hodgkin to solve its structure. the underline word refers to A.organic compound B.crystals C.penicillin
Jawaban:
jawabannya B. crystals
17. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
18. hasil penjumlahan dari -36-6b+7dan13a-(-2b)+4
Jawaban:
jawabanadadilampiranjglupalikeyaa
19. Solve the absolute value inequality. Express the answer using interval notation.6 – |2x + 3| < 5
Jawab:
Penjelasan dengan langkah-langkah:
jika |a| < b maka - b <x < b
soal
6 – |2x + 3| < 5
- |2x + 3| < 5 - 6
- |2x + 3| < - 1
|2x + 3 > 1
2x + 3 > 1 atau 2x + 3 < - 1
2x > 2 atau 2x < - 4
x > 1 atau x < - 2
HP x = { x < -2 atau x > 1 }
20. Hasil dari 2a(3a - 2b + 5b - 6) adalah... A. 6a - 6b B. 6a2 - 6b C. -6a + 6ab - 12 D. 6a2 + 6ab - 12a
Jawaban:
~ Math2a(3a - 2b + 5b - 6)
6a² - 4ab + 10ab - 12a
6a² + 6ab - 12a [D]
Jawaban:
2a(3a-2b+5b-6)
6a²+6ab-12a
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