Solve the exponential equation for
1. 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!
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. 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]
4. 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]
5. 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
6. Complete the the equation below. What is the missing number? 65 +.... = 100 25 FLER 35 45 . 55
Jawaban:
35
Penjelasan dengan langkah-langkah:
............maaf kalo bener osokdkdd
7. 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:)
8. Fill the circles with +, - x, or : to complete the number equation below!
Jawaban:
- and ×
Penjelasan dengan langkah-langkah:
27 - 4 × 5 = 7
so, the circles is filling with - and ×
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. The gradien of the equation y = 3x – 6 is
Jawaban:
Ia arter mah ........ .....
11. 1) What is the y-intercept of the quadratic equation below? * y = x2 - 6x + 9
Penjelasan dengan langkah-langkah:
titik potong persamaan kuadrat
y = x² - 6x + 9
- titik potong terhadap sumbu y, x = 0
y = 0² + 6(0) + 9
y = 9
titik potongnya (0, 9)
- titik potong terhadap sumbu x, y = 0
x² - 6x + 9 = 0
(x - 3)(x - 3) = 0
x = 3
titik potongnya (3, 0)
12. 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}
13. 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
14. 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
15. 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
16. which of the fractions below is the simplest equivalent fraction of 10/25
10/25
= 10:5/25:5
= 2/5
17. 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
18. . 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
19. 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
20. 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 :)
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