which graph represents the solution of the inequality -12x > 36
1. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
2. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
3. Which equation represents the standard enthalpy change of formation of water .....
Jawaban:
equation represents the standard enthalpy change of formation of water
is 2H2(g)+O2(g)→2H2O(l)
4. Graph each equation on the provided Coordinate Plane. If you need to scale your coordinate plane so that the points you elect to graph will fit, please label accordingly.
Jawaban terlampir
Semoga membantu :)
5. On a map, 1 cm represents 60 km. Find the length on the map represents a distance of 480 km!
Answer:
8 cm
Explanation with steps:
scale = map length : actual length
scale = 1 cm : 6.000.000 cm
scale = 1 : 6.000.000
48.000.000 cm / 6.000.000 = 8 cm
hence, 480 km is represented by 8 cm on the map
6. Which of the following statements correctly describes the motion of the car shown by the velocity time graph
Mana dari pernyataan-pernyataan berikut benar menjelaskan gerakan mobil yang ditunjukkan oleh kecepatan waktu grafik.
7. 1. determine the differential equation foto the give circuit2. transform the equation into laplace transform3. determine the transfer function for the given circuit
Penjelasan dengan langkah-langkah:
jjnrnrjejeheh3u3hehndndjdhr
8. make the graph of this equation : 2x + y = 2!
Semoga Bermanfaat
:")
9. Diagram 5 shows the graph of a quadratic function y = f(x)
a. y = 21+4x-x²
0 = 21+4x-x²
0 = (7-x)(3+x)
x = 7 atau x = -3
b. mencari sumbu simetri di turunan pertama:
y = 21+4x-x²
y' = 4 - 2x ; subtitusi y' = 0 (karena pada titik puncak, m=0)
0 = 4 - 2x
2x = 4
x = 2 ← sumbu simetri
10. ##Quiz #13 ##• english edition• big point• no spam• show the way and graph Use the Parabola tool to graph the quadratic function.f(x) = 2x² + 8x + 10Graph the parabola by first plotting its vertex and then plotting a second point on the parabola
Answer and the explanation with steps:
Vertex is the lowest/highest point of a curve = titik puncak
Second point could be when the value of x = 0, or if the value of y = 0
Therefore
Find y if x = 0
y = 2·0² + 8·0 + 10
y = 10
Point = (0, 10)
Find another point if the y = 10, because a curve has multiple pairs of coordinates with the same value of y.
10 = 2x² + 8x + 10
2x² + 8x = 0
Factor it!
2x(x+4) = 0
x = -4
Point = (-4, 10)
Then find the vertex of the curve
Find the x with the equation [tex]\displaystyle\sf-\frac{b}{2a}[/tex]
from the quadratic equation 2x² + 8x + 10,
a = 2, b = 8, c = 10
Therefore x of the vertex point = -8/(2×2) = -8/4 =
-2
Find the y
y = 2·-2² + 8·-2 + 10 = 8 - 16 + 10 =
2
The vertex point = (-2, 2)
Which makes the vertex point of the curve the lowest.
The left side of the curve from the vertex point has the same size with the right side of the curve from the vertex point, plotted as in the picture below. Mark those three points: (-4, 10), (-2, 2) and (0, 10). Connect those points by drawing a downward line from the left and upward line to the right, ensure that the line is curvaceous enough to form a curve...
[Lihat gambar]
#NoGoogleTranslate
_____________
#Jenius - kexcvi
Jawab:
Penjelasan dengan langkah-langkah:
parabola tool mungkin artinya bikin parabola dengan alat graphing (misal geogebra)
f(x) bisa diubah jadi bentuk vertex nya dengan kuadrat sempurna
[tex]f(x) = 2x^2+8x+10 = 2(x^2+4x+5)\\\\f(x) = 2((x+2)^2 + 1)\\\\f(x) = 2(x+2)^2 + 2 \to \text{ vertex : } (-2,2)[/tex]
titik kedua : misalkan x = -1 => y = 4 => (-1,4)
sebenarnya cukup dengan 1 titik (dan diketahui koefisien kuadrat) saja yaitu vertex nya sudah cukup untuk menggambar grafik f(x), karena hanya ada 1 parabola yang memiliki 1 titik puncak jika diketahui koefiesien kuadratnya.
dengan geogebra ini bisa langsung dilakukan dengan mengetikkan :
[tex]f(x) = 2(x+2)^2 + 2[/tex]
pada bagian algebra
Cara 2 menggambar f(x) di geogebra : mencari titik fokus dan garis direktrix f(x)
f(x) memiliki 1 titik fokus F(a,b) dan garis direktrix y = k
kedua informasi tersebut bisa dicari dengan persamaan :
[tex]y = \dfrac{1}{2(b-k)} (x-a)^2 + \dfrac{b+k}{2}[/tex]
[tex]f(x) = 2(x+2)^2 + 2 \to a = -2\\\\\dfrac{1}{2(b-k)} = 2, \dfrac{b+k}{2} = 2\\\\b-k = \dfrac{1}{4}, b+k = 4 \to b = \dfrac{17}{4}, k = \dfrac{15}{8}[/tex]
lalu untuk membuat grafik f(x) dengan opsi parabola :
1) pada bagian algebra :
- buat titik fokus dengan mengetikkan : (2, 17/8)
- buat garis direktrix dengan mengetikkan : y = 15/8
2) pergi ke bagian tools => conics => klik Parabola
Untuk menggunakan opsi Parabola pertama klik titik fokus, lalu klik garis direktrix nya
11. Please help The equation of a curve is y=x^3+3x^2-9x+k, where k is a constant. i) Find the coordinates of the stationary points on the curve and their natures. ii) Find the values of k for which the curve has a stationary point on the x-axis. iii) Find the equation of the tangent to the curve at the point where the curve intersects the y-axis. iii) Find the set of values for x for which y=x^3+3x^2-9x+k is increasing function.
[tex]EQ\rightarrow\ y=x^3+3x^2-9x+k\\\\i.\\Stationary\ points:\\\ f(x)=x^3+3x^2-9x+k\\f'(x)=3x^2+6x-9\\f'(x)=0=3x^2+6x-9\\0=(3x-3)(x+3)\\x_1=1\\x_2=-3\\\\Nature:\\f'(x)=3x^2+6x-9\\f''(x)=6x+6\\for\ x=1\rightarrow\ f''(x)=12(positive)\\for\ x=-3\rightarrow\ f''(x)=-12(negative)\\hence\ x_2\ is\ the\ maximum\ point\ and\ x_1\ the\ minimum[/tex]
[tex]ii.\\subsititute\ x_1\ and\ x_2\ to\ f(x)\\x_1\rightarrow (1)^3+3(1)^2-9(1)+k=0\\k_{x_1}=5\\x_2\rightarrow (-3)^3+3(-3)^2-9(-3)+k=0\\k_{x_2}=-27[/tex]
[tex]iii.\\intersects \rightarrow\ x=0\\y=(0)^3+3(0)^2-9(0)+k\\y=k\\y=\ 5/-27\\f'(x)=3x^2+6x-9\\3(0)^2+6(0)-9\\hence\ m_{curve}=-9\\\\for\ k=5\\\rightarrow y-5=-9(x-0)\\\rightarrow y=-9x+5\\\\for\ k=-27\\\rightarrow y+27=-9(x-0)\\\rightarrow y=-9x-27[/tex]
[tex]iv.\\because\ x_2\ is\ the\ maximum\ point,\\the\ function\ will\ incerase\ up\ to\ that\ point.\\\\because\ x_1\ is\ the\ minimum\ point,\\the\ function\ will\ decrease\ up\ to\ that\ point.\\\\Hence,\ the\ set\ values\ for\ x\ which\ f(x)\ is\ incerasing\ are:\\(-\infty,-3)\ and\ (1,\infty)[/tex]
hope these helps :)
12. what time is shown on the clock?
the answer is..
it's ... pm / am
tysm!! ❤❤
13. My equation editor not shown pictures moodle, what is the meaning of ?
Jawaban:
it's mean the editor don't show the picture moodle to everyone
14. 4) Which of the following represents all the possible values of x that satisfy the equation below? X X x − 3 2x 2 *
Nilai x memenuhi persamaan yaitu x = 0 atau x = 4. Soal ini berkaitan dengan materi mencari nilai x dari suatu persamaan.
Penjelasan dengan langkah-langkahDiketahui :
Koreksi soal, mungkin maksud Anda persamaan x/(x-3) = 2x/2
Ditanyakan :
Solusi dari permasalahan tersebut
Jawab :
Langkah 1
x / (x - 3) = 2x / 2
Jika dipindah ruas akan menjadi :
x . 2 = 2x . (x – 3)
Selanjutnya kita lakukan operasi
2x = [tex]2x^{2}[/tex] – 6x
0 = [tex]2x^{2}[/tex] – 8x
0 = 2x (x – 4)
x = 0 atau x = 4
Jadi, x yang memenuhi adalah x = 0 atau x = 4
Pelajari Lebih LanjutMateri tentang mencari nilai x dari suatu persamaan brainly.co.id/tugas/26215307
#BelajarBersamaBrainly #SPJ1
15. find the equation of the straight line which has a gradient of 2 and which passes through the point (2,1).
y-y1=m(x-x1)
y-1=2(x-2)
y=2x-4+1
y=2x-3
mungkin gitu(?)
16. Data were collected on the fiber diameter and the fleece weight of wool taken from a sample of 20 sheep. the data are shown in the following graphs. graph 1 is a scatterplot of fleece weight versus fiber diameter with the respective least-squares regression line shown. graph 2 is the associated plot of the residuals versus the predicted values.
Penjelasan dengan langkah-langkah:
Pengambilan data diameter serat dan berat bulu domba diambil dari sampel sebanyak 20 ekor domba. data tersebut disajikan dalam grafik berikut. grafik 1 adalah sebaran berat bulu domba versus diameter serat dengan masing-masing garis regresi kuadrat terkecil ditampilkan. grafik 2 adalah plot terkait dari residu versus nilai yang diprediksi
17. mohon bantuannya The picture is a graph of quadratic function......
Persamaan umum fungsi kuadrat :
f(x) = Ax² + Bx + C
Diketahui grafik fungsi f(x) melewati titik :
» (3 , 0)
=> f(3) = 0
=> A.(3)² + B.(3) + C = 0
=> 9A + 3B + C = 0 ( i )
» (–1 , 0)
=> f(–1) = 0
=> A.(–1)² + B.(–1) + C = 0
=> A - B + C = 0 ( ii )
» (0 , 3)
=> f(0) = 3
=> A.(0)² + B.(0) + C = 3
=> C = 3
Subtitusikan nilai C ke ( i ) :
9A + 3B + C = 0
9A + 3B + 3 = 0
9A + 3B = –3 ( iii )
Subtitusikan nilai C ke ( ii ) :
A - B + C = 0
A - B + 3 = 0
A - B = –3 ( iv )
Eliminasi ( iii ) dan ( iv ) :
( iii ) : 9A + 3B = –3
(iv) × 3 : 3A - 3B = –9
________________ +
12A = –12 => A = –1
Subtitusikan nilai A ke ( iv ) :
A - B = –3
–1 - B = –3 => B = 2
Substitusikan nilai A, B, dan C ke persamaan fungsi kuadrat :
f(x) = Ax² + Bx + C
f(x) = (–1)x² + (2)x + (3)
Jadi, persamaan fungsi kuadrat grafik tersebut adalah : f(x)=–x²+2x+3
18. 4. One of the energy transformations is shown incorrectly in the food web below. Which statement is incorrect on the food web? *
Jawaban:
yang tikus si menurut gua
emang tikus makan rumput ya?
19. The ion h2f is formed when hydrogen fluoride gains a proton as shown in the equation .....
Jawaban:
- co-ordinate bond
- the shared electron pair is donated to the H+ ion from the fluoride
Penjelasan:
The ion H2F+ is formed when hydrogen fluoride gains a proton as shown in the equation
HF + H+ --> H2F+
Name the type of bond formed when HF reacts with H+
Explain how this bond is formed (2)
20. kak..pliss jawab dong...important!plisss find the trigonometric function of the graph. jawab yaa :
Jawab:
4 tan x°
Penjelasan dengan langkah-langkah:
perhatikan bahwa di kuadran I (sudut 0° sampai 90°) nilai sudutnya positif, maka fungsi trigonometri yang digunakan adalah sinus atau tangen
lalu pada sudut 90° sampai 180° (kuadran II) nilai nya negatif, maka fungsi trigonometri diatas cosinus atau tangen
dari kedua kesimpulan diatas, maka jelas fungsi yang dipakai adalah tangen. perhatikan bahwa
tan 45° = 1
maka
4 tan 45° = 4
maka kemugkinan fungsi diatas berbentuk
4 tan x°
cek
4 tan 135° = 4 tan (180° - 45°) = 4 (-tan 45°) = 4.(-1) = 4×(-1) = -4 (sesuai)
4 tan 225° = 4 tan (180 + 45°) = 4 tan 45° = 4×1 = 4 (sesuai)
Jadi fungsi trigonometri yang dipakai adalah 4 tan x°
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