Hi! please help me solve the math question in the picture below. thanks!
1. Hi! please help me solve the math question in the picture below. thanks!
Penjelasan dengan langkah-langkah:
area = ½ x 10,1 x 8
= 40,4unit²
goodluck!
2. solve the quadratic equation below
Step by step explanation
_________
Nomor 1
_________
[tex]\begin{aligned}\rm \frac{5x+12}{3x}&=\rm x\\\rm 5x+12&=\rm 3x^2\\0&=\rm 3x^2-5x-12\\0&=\rm (3x+4)(x-3)\\&\bf x=-\frac{4}{3}~atau~x=3\end{aligned}[/tex]
_________
Nomor 2
_________
[tex]\begin{aligned}\rm \frac{20-8k}{k-5}&=\rm 3k\\\rm 20-8k&=\rm 3k^2-15k\\0&=\rm 3k^2-15k+8k-20\\0&=\rm 3k^2-7k-20\\0&=\rm (3k+5)(k-4)\\&\bf k=-\frac{5}{3}~atau~k=4\end{aligned}[/tex]
3. hi ! please help me solve the math question in the picture below :) thanks a lot!
Jawaban:
Transformasi GeometriPenjelasan dengan langkah-langkah:
D(-5,-2)=>Pusat (-3,4)=>(Skala k)=>D´(3,22)
(x´) = (k 0) (x-a) + (a)
(y´) (0 k) (y-b) (b)
(3) = (k 0) (-5 - (-3) + (-3)
(22) (0 k) (-2 - (4) (4)
(3) = (k 0) (-5+3) + (-3)
(22) (0 k) (-2-4) (4)
(3) = (k 0) (-2) + (-3)
(22) (0 k) (-6) (4)
(3) = (-2k+0) + (-3)
(22) (0+(-6k) (4)
(3) = (-2k) + (-3)
(22) (-6k) (4)
(3) = (-2k-3)
(22) (-6k+4)
(3)=-2k-3
2k=-3-3
2k=-6
k=-6/2
k=-3
22=-6k+4
6k=-22+4
6k=-18
k=-18/6
k=-3
atau cara lain
(kx-ka+a, ky-kb+b)
(k(-5)-k(-3)+(-3), k(-2)-k(4)+4)
(-5k+3k)-3, -2k-4k+4) = > (3, 22)
(-2k-3, -6k+4)=>(3,22)
(-2k-3=3)
(-2k=3+3)
(-2k=6)
(k)=6/-2)
(k)=-3
(-6k+4=22)
(-6k=22-4)
(-6k=18)
(k=18/-6)
(k)=-3
2. P(-4,6) => (y=2)=>(-90⁰)
P(-4,6) => (y=2) => P´(x, 2k-y)=>P´(-4, 2(2)-6)
P´(-4, 4-6) => P´(-4, -2)
P´(-4,-2) = >(-90⁰)=>P´´(y,-x)=>P´´(-2,4)
3. P(-5,7) =>(x=-4) => (x=y)
P(-5,7)=>(x=-4)=>P´(2k-x, y)=>P´(2(-4)-(-5), 7)
P´(-8)+5, 7) => P´(-3, 7)
P´(-3,7) =>(x=y) => P´(y,x) => P´(7,-3)
Demikian
Semoga membantu dan bermanfaat!
4. Solve the exponential equation for
Jawaban:
x= -4
Penjelasan dengan langkah-langkah:
Itu 1 saat:
(9/8)⁰
3x+12= 0
3x= -12
x= -4
[tex]( \frac{9}{8} ) {}^{3x + 12} = 1 \\ ( \frac{9}{8} ) {}^{3x + 12} = ( \frac{9}{8} ) {}^{0} \\ 3x + 12 = 0 \\ 3x = - 12 \\ x = \frac{ - 12}{3} \\ x = - 4[/tex]
[tex] \: [/tex]
»Detail Jawaban: Mapel: Matematika Kelas: X Materi: Eksponensial#AyoBelajar!
5. look for words in the box below and write them in the provided placetolong dijawab#NgasalJawabDiReport
Jawaban:
1.pet
2.right
3.polite
4.mission
5.allow
semoga membantu
6. Solve the equation below and give your answer in the simplest form. 2a+1/4a–3=⅔
Jawaban:
artnya : Pecahkan persamaan di bawah dan berikan jawaban Anda dalam bentuk yang paling sederhana.
2a+1/4a–3=⅔
7. look for the 6 words in the picture below
Jawaban:
1. Umbrella
2. Car
3. Window
4. People
5. Dog
6. Rain
Penjelasan:
Semoga membantu ya kak.
8. Choose the best answer in brackets for the statements below
Jawaban:
8. Suggestion
9. disagreement
10. agreement
11. disagreement
12. suggestion
Jawaban:
suggestion
Penjelasan:
yang no Dlapan
9. Please help, the dialogue for numbers 44 and 45 in the picture below
Jawaban:
44.Rita invited andri to come for her school anniversary
45. Yes, he does. Andri has agreed to come to rita's school anniversary party
Jawaban:
44. Rita invite Andri to come at her school festival to celebrate its anniversary
45. Yes, he wants to go to the festival. He will definitely come, and enjoy the festival.
10. for every Yes answer in number 2 about fill in the information on the table below
Jawaban:
vuffchhiig job description ug
11. Please help, the dialogue for numbers 41 ,42 and 43 in the picture below
Jawaban:
41. The purpose is to persuade the reader or the speaker by presenting arguments so they will agree about dangerous off smooking and follow the writer's wish.
42. Smoking in restaurants can affect the health of other visitors and upset their comfort by damaging their food.
43.Smoking is not allowed in the restaurant area
12. The diagram below show the stages and equipment used in cement making ?
Jawaban:
dimana diagramnya kak? kalo ngga ada ga bisa dijawab... difoto aj
13. solve the equation below 3 - 2x - x^2 = 0
Use some tricks.
[tex]$\begin{align}3-2x-x^2&=0 \\ \text{Multipty both }& \text{sides by (-1)} \\ (-1)(3-2x-x^2)&=(-1)(0) \\ -3+2x+x^2&=0 \\ x^2+2x-3&=0 \\ (x+3)(x-1)&=0\end{align}[/tex]
The correct x are:
x = {-3,1}
[tex]x^2-x+3x-3=0 \\ \\ x(\frac{x^2}{x}-{x}{x}+3(\frac{3x}{3}-\frac{3}{3})=0 \\ \\ x(x^{2-1}-1)+3(x-1)=0 \\ \\ (x-1)(x+3)=0 \\ \\ \\ x-1=0 \\ \\ x+3=0 \\ \\ x=1 \ dan \ x=3 \\ \\[/tex]
Jadi x∈{1,-3}
14. solve for x in 2/5x = 8.
~ MathPenyelesaian:
= 2/5x = 8
x = ?
—5 × 2/5x = 8 × 5
2x = 40
2x = 40/2
x = 20
2/5x = 8
x = 5/2 × 8
x = 5 × 4
x = 20
15. solve the equation below x^2 = 3x + 2 = 0
Assume that the typo in the right side of x² is a pus (+) symbol.
So,
x² + 3x + 2 = 0
Factorize it.
(x+1)(x+2) = 0
Get some radixes:
x₁ + 1 = 0
x₁ = -1
x₂ + 2 = 0
x₂ = -2
So, the solution of the equations are:
x = {-2,-1}
[tex]\displaystyle x^2+3x+2=0\\x^2+2x+x+2=0\\x(x+2)+1(x+2)=0\\(x+1)(x+2)=0\\\\x+1=0\\x=-1\\\\\text{or}\\\\x+2=0\\x=-2\\\\\boxed{\boxed{S=\{-1,-2\}}}[/tex]
16. Listen to the audio and complete the diagram below. write one word only for each answer
Jawaban:
mana audio nya
Penjelasan:
17. Find the corresponding height for base AB of triangle ABC in the figure below.
Jawaban:
(1) and (3)
Penjelasan dengan langkah-langkah:
Corresponding height = garis tegak lurus
jadi, garis tegak lurus garis AB = (1) dan (3)
18. Solve the following equations for x, in interval 0<x<3603 cosx = -2
TRIgonomeTRI
Persamaan fungsi cos x
cos x = cos p , maka x = ± p +k.360
Penjelasan dengan langkah-langkah:
HP x untuk 0< x< 360 , dari
[tex]3\ \cos x = - 2[/tex]
[tex]\cos x = -\frac{2}{3} = \cos 131,8[/tex]
x= 131,8 + k. 360 atau x = -131,8 + k.360
k= 0, 1 , 2, . . .
k= 0 , x= 131,8 atau x = - 131,8
k = 1 , x= 491,8 atau x = 228,2
HP x untuk 0< x< 360 , x = { 131,8 ; 228, 2}
19. Change the sentences below negative for your brother is styudying in the univercity everyday
Jawaban:
Your brother is not studying in the univercity everyday
Semoga terbantu :))
20. Discus the cause and effect of littering! Fill in the diagram below as the example!
Diskusikan dan efek, di diagram pada contoh berikut
0 Comments:
Post a Comment