Keliling suatu persegi 42 cm. Jika panjang : lebar = 4 : 3, maka luas persegi panjang tersebut adala.... Question from @SyifaAlyadani

October 2018 2 88 Report

Keliling suatu persegi 42 cm. Jika panjang : lebar = 4 : 3, maka luas persegi panjang tersebut adalah...
A. $84cm^{2}$
B. $108cm^{2}$
C. $216cm^{2}$
D. $440cm^{2}$

Sebuah gelombang menempuh jarak 50 m dengan frekuensi 10 Hz dan membentuk 5 gelombang. Panjang gelombangnya adalah ... m A. 10 B. 8 C. 6 D. 4 E. 2 Dengan caranya

Answer

SyifaAlyadani March 2019 | 0 Replies

∫ dx = Mohon bantuannya...

Answer

SyifaAlyadani January 2019 | 0 Replies

Terdapat polinomial P yang diberikan di bawah. Berapakah derajat dari polinomial ini? P = x³ + x² (x+1)² + 3x + 1

Answer

SyifaAlyadani January 2019 | 0 Replies

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Answer

SyifaAlyadani January 2019 | 0 Replies

Passive sentence from “A cat ate a fish” is ….. A. A fish eaten a cat B. A fish eating a mouse C. A fish eat a cat D. A fish is eaten by a cat E. A fish was eaten by a cat

Answer

SyifaAlyadani January 2019 | 0 Replies

Diberikan sebuah fungsi f(x) = 2x - 6 Invers f(x) adalah A. f⁻¹(x) = x - 3 B. Tidak ada Invers C. f⁻¹(x) = x + 6 D. f⁻¹(x) = x/2 + 3 E. f⁻¹(x) = x/2 - 3 Beserta cara

Answer

SyifaAlyadani January 2019 | 0 Replies

Apa invers dari fungsi berikut f(x) = (x+1)/(x-2) A. f⁻¹(x) = (1 + x)/(x - 1) B. f⁻¹(x) = (1 - 2x)/(x - 1) C. f⁻¹(x) = (1 + 2x)/(x +1) D. f⁻¹(x) = (1 + 2x)/(x - 1) E. f⁻¹(x) = (x - 1)/(1 + 2x) Gunakan cara

Answer

SyifaAlyadani January 2019 | 0 Replies

Mohon bantuannya, saya ga tau cata ngerubah f(x) menjadi f(2) nya f(x) = 5x +3 g(x) = x+4 maka g(f(2)) adalah..

Answer

SyifaAlyadani January 2019 | 0 Replies

Diketahui ΔHf CO2, H2O, dan C2H4 berturut-turut : - 395,2 kj/mol, - 242,76 kj/mol, dan – 52,76 kj/mol. Kalor yang dihasilkan pada pembakaran 5,6 gram C2H4 (C=12, H=1) menurut reaksi : C2H4(g) + O2(g) → CO2(g) + H2O(l) ( belum setara ) adalah

Answer

SyifaAlyadani January 2019 | 0 Replies

Pernyataan yang benar untuk reaksi : 2CO(g) + O2(g) → 2CO2(g) , ΔH = -x kJ adalah .... A. kalor penguraian CO = x kJ. Mol-1 B. kalor pembentukkan CO = 2x kJ. Mol-1 C. kalor pembakaran CO =- ½ x kJ. Mol-1 D. kalor pembentukan CO2 = ½ x kJ. Mol-1 5. kalor pembakaran CO = 2x kJ. Mol-1

Answer

liwonsubagyo K = 2 x ( p + l ) ..... 42 = 2 (p+ l) .... P + l = 42/2 .... = 21... Perbandinhan 4:3 = 4+3 = 7 P = 4/7 x 21 = 12 cm..... l = 3/7 x 21 = 9 cm ... L = p x l ... = 12 x 9 = 108 cm²

0 votes Thanks 1

arenrosejuwa K=2×(p+l)
42 cm=2×(p+l)
p+l=42:2=21
jika panjang 12 dan lebar 9 maka jika diperkecil angkanya akan menjadi 4:3.
L=p×l=12×9 cm=108cm

Sebuah gelombang menempuh jarak 50 m dengan frekuensi 10 Hz dan membentuk 5 gelombang. Panjang gelombangnya adalah ... m A. 10 B. 8 C. 6 D. 4 E. 2 Dengan caranya

∫ dx = Mohon bantuannya...

Terdapat polinomial P yang diberikan di bawah. Berapakah derajat dari polinomial ini? P = x³ + x² (x+1)² + 3x + 1

Passive sentence from “A cat ate a fish” is ….. A. A fish eaten a cat B. A fish eating a mouse C. A fish eat a cat D. A fish is eaten by a cat E. A fish was eaten by a cat

Diberikan sebuah fungsi f(x) = 2x - 6 Invers f(x) adalah A. f⁻¹(x) = x - 3 B. Tidak ada Invers C. f⁻¹(x) = x + 6 D. f⁻¹(x) = x/2 + 3 E. f⁻¹(x) = x/2 - 3 Beserta cara

Apa invers dari fungsi berikut f(x) = (x+1)/(x-2) A. f⁻¹(x) = (1 + x)/(x - 1) B. f⁻¹(x) = (1 - 2x)/(x - 1) C. f⁻¹(x) = (1 + 2x)/(x +1) D. f⁻¹(x) = (1 + 2x)/(x - 1) E. f⁻¹(x) = (x - 1)/(1 + 2x) Gunakan cara

Mohon bantuannya, saya ga tau cata ngerubah f(x) menjadi f(2) nya f(x) = 5x +3 g(x) = x+4 maka g(f(2)) adalah..

Diketahui ΔHf CO2, H2O, dan C2H4 berturut-turut : - 395,2 kj/mol, - 242,76 kj/mol, dan – 52,76 kj/mol. Kalor yang dihasilkan pada pembakaran 5,6 gram C2H4 (C=12, H=1) menurut reaksi : C2H4(g) + O2(g) → CO2(g) + H2O(l) ( belum setara ) adalah

Pernyataan yang benar untuk reaksi : 2CO(g) + O2(g) → 2CO2(g) , ΔH = -x kJ adalah .... A. kalor penguraian CO = x kJ. Mol-1 B. kalor pembentukkan CO = 2x kJ. Mol-1 C. kalor pembakaran CO =- ½ x kJ. Mol-1 D. kalor pembentukan CO2 = ½ x kJ. Mol-1 5. kalor pembakaran CO = 2x kJ. Mol-1

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