What is the equation of axis of symmetry of the given quadratic equation? * y = x2 – 8x - 9
1. What is the equation of axis of symmetry of the given quadratic equation? * y = x2 – 8x - 9
Jawaban:
x = 4
Penjelasan dengan langkah-langkah:
x = -b/2a
= -(-8)/2(1)
= 4
Jawaban:
x = 4
Penjelasan dengan langkah-langkah:
semoga membantu:)
2. An equation is given below. 4(x - 7) = 0.3(x + 2) + 2.11 The solution to the equation is A. 8.3 B. 8.7 C. 3 D. -3
Jawaban:
4.53
Penjelasan dengan langkah-langkah:
4x - 14 = 0.3x + 0.6 + 2.11
3.7 x = 16.76
x = 4.53
3. The line equation which is trough point (-3,7) and having gradient -2 is
(y-y1) = m (x-x1)
(y-7) = -2 (x-(-3))
y-7 = -2 (x+3)
y-7 = -2x -6
y+2x = -6 +7
y+2x = 1 atau -2x-y = -1
4. find the equation of the straight line which passes through the point (-2,4) and is parallel to the line y=2x +5.
y = 2x + 5
m = 2
y - b = m(x - a)
y - 4 = 2(x -(-2))
y - 4 = 2(x + 2)
y - 4 = 2x + 4
y = 2x + 4 + 4
y = 2x + 8
5. The gradien of the equation y = 3x – 6 is
Jawaban:
Ia arter mah ........ .....
6. to find new quadratic equation if given an equation with the roots p and q and the roots are 2p+1 and 2q+1 (how to solved) pake bahasa indonesia nggak apa
kalo misal kasih cara tapi nanti pake cara panjang gak apa apa kan
aduhh.. maksudnya apaan sih gak ngerti....
7. Given the equation linear two variable x = 7y x – y = 36 The value of 3x - 4y is . . . .
102 menggunakan eliminasi dan subtitusi
Jawab:
102
Penjelasan dengan langkah-langkah:
Pertama, cari nilai dari y dengan cara mengeliminasi x:
[tex]x = 7y\\x - y = 36\\\\x - 7y = 0\\x - y = 36\\============-\\-6y = -36\\y = 6[/tex]
Kedua, cari nilai dari x setelah mendapatkan nilai dari y dengan cara substitusi nilai dari y ke salah satu persamaan:
[tex]x = 7y\\x = 7 \times 6\\x = 42[/tex]
Ketiga, substitusikan nilai dari x dan y pada 3x - 4y:
[tex]3x - 4y\\\\= 3 \times 42 - 4 \times6\\\\= 126 - 24\\\\= 102[/tex]
8. Given quadratic equation y = -×2-x+20a. Find what is the zero value
Using the quadratic formula
[tex] \frac{ - b \: ± \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]
[tex]x = \frac{ - ( - 1)± \sqrt{( - 1 {)}^{2} - 4( - 1)(20)} }{2( - 1)} = [/tex]
[tex] x = \frac{1± \sqrt{81} }{ - 2} = [/tex]
[tex]x1= \frac{1 + 9}{ - 2} = - 5[/tex]
[tex]x2 = \frac{1 - 9}{ - 2} = 4[/tex]
ANSWER:
X1=(-5)
X2=4
9. the equation of the word valuable is?
Jawaban:
persamaan dari kata bernilai itu?
Penjelasan:
maaf kalo salah
please jadikan sebagai jawaban tercerdas ☺️
Jawaban:
B Inggris = The Equation Of The Word Valuable Is ?
B Indonesia = Persamaan Dari Kata Bernilai Itu ?
10. 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
11. how many ways to solve the linear equation??
there are 4 ways, that is with graph, elimination, substitution, and mix method
12. . Is the following equation a linear equation of 2 variables. x - y = -4 * a.yes b.no
menurut saya jawaban nya A karena ada x dan y
13. the correct linear equation form is...
Jawab:
the correct linear equation form is
linear equation = persamaan garis lurus
y = mx + b
dimana m itu adalah gradien garis tersebut
14. an equation that occurs in the theory of gas flow through small-diameter tubes is: Use the equation to determine the SI units of Q.
Jawaban:
kgs^-1
Penjelasan:
The unit k has no units, therefore it has no dimensional formula, so I didn't include it in my workings.
The answer to (p1-p2) will still be written in terms of pressure, so I substituted the whole thing with the dimensional formula of pressure, which is M × L^-1 × T^-2.
The molar gas constant includes K, which stands for Kelvin, so I used the dimensional symbol of T to replace it. The J stands for Joules, which I replaced with its dimensional formula, M • L^-2 • T^-2
Legend: Conversion of units to dimensions
P (Pressure) = ML^-1•T^-2
J (Joules) = M • L^-2 • T^-2
K (Kelvin) = T
T (Temperature) = T
kg (Mass) = M
meter (Length) = L
15. What is the chemical equation for photosynthesis?
Sun,and Water
Sorry wrong
Jawaban:
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
Penjelasan:
sorry if wrong
16. 2. Given a quadratic equation 2(x-5)²= 4(x + 7).(a) express the equation in general form, that is ax²+bx+c=0
2(x - 5)² = 4(x + 7)
2(x² - 10x + 25) = 4x + 28
2x² - 20x + 50 = 4x + 28
2x² - 20x + 50 - 4x - 28 = 0
2x² - 24x + 22 = 0
x² - 12x + 11 = 0
Jawab:
2(x-5)² = 4(x+7)
2(x²-10x+25) - 4(x+7)=0
2x²-20x+50-4x-28=0
2x²-24x+22=0
so in general from is
2x²-24x+22=0
17. An object has a position equation of 2t²+4t-8 the equation of the velocity sector for the object is
Kinematics.
x = 2t² + 4t - 8
v = dx / dt
= 4t + 4
18. 1. Is the following equation a linear equation of 2 variables. 4xy - 8 = 12 * a.yes b.no
Jawab:
a. Yes
Penjelasan dengan Langkah-Langkah :
Karena pada linear equation (Persamaan Linear) tersebut terdapat 2 variabel yaitu x dan y
Jadi jawabannya adalah a. Yes
Semoga membantu
Jadikan jawaban tercerdas ya :)
19. A curve is given by the equation x sin y y cos 2x!
Jawaban:
Sebuah kurva diberikan oleh persamaan x sin y y cos 2x!
20. WHAT IS THE EQUATION BETWEEN CHORUS AND REFFRAIN?
Jawaban:
sama sama diulang
Penjelasan:
biasanya reff lebih sedrhana
Jawaban:
Sama sama diulang
Biasanya reff sederhana
Penjelasan:
.
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