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TEA [102]
3 years ago
11

Log(x2) = log(x) + log(x)

Mathematics
2 answers:
Galina-37 [17]3 years ago
7 0

Answer:

True (also, 2log(x))

Step-by-step explanation:

log(x²)

log(x × x)

log(x) + log(x)

2log(x)

Shtirlitz [24]3 years ago
6 0

Answer: 1

Step-by-step explanation:

Answer on Edgen. 2020

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Solve the system of linear equations by substitution.
SVEN [57.7K]

Answer:

Answer:

x= 29/11 or y= 25/11

Step-by-step explanation:

2x - y= 3 ...........equation 1

x + 5y= 14 ............equation 2

Make x the subject of the formula in equation 2

x= 14 - 5y ..............equation 3

Substitute x=14 - 5y in equation 1

2(14- 5y) - y=3

28 - 10y - y=3

Collect like terms

-10y - y=3 - 28

-11y= -25

divide both sides by coefficient of y

-11y/-11 = -25/-11

y= 25/11

Substitute y= 25/11 in equation 3

x=14 - 5(25/11)

x= 14 - 125/11

x= 29/11

Step-by-step explanation:

3 0
3 years ago
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gizmo_the_mogwai [7]

Answer:

because x,y,z are in continuous proportion

=> x/y = y/z

<=> xz = y² =>

\frac{xz}{y} =y\\\\=>\frac{x^{3}z^{3}  }{y^{3} }=y^{3}(1)

with (1), we have:

x^{2}y^{2}z^{2}(\frac{1}{x^{3} }+\frac{1}{y^{3} }+\frac{1}{z^{3} })\\\\=  (xyz)^{2}(\frac{1}{x^{3}  }  +\frac{y^{3} }{x^{3}z^{3} }+\frac{1}{z^{3} })\\\\=(xyz)^{2} (\frac{x^{3}+y^{3}+z^{3}   }{x^{3}z^{3}}  )\\\\=y^{2}.\frac{x^{3}+y^{3}+z^{3}  }{xz}  \\\\= xz.\frac{x^{3}+y^{3}+z^{3} }{xz} \\\\=x^{3}+y^{3}+z^{3}

Step-by-step explanation:

3 0
3 years ago
Number 23 please help me
Maksim231197 [3]

Earth to Neptune is the greatest distance. The number at the top is a power. So 22 to the power 4 is 22 x 22 x 22 x 22 = 234 256. 22 to the power 7 is 22 x 22 x 22 x 22 x 22 x 22 x 22 = 2 494 360 000. It is 22 to the power 3 larger which is 10 648 times greater.


6 0
3 years ago
Is f(x)=x^2-2x+3 a quadratic function
Sav [38]

Answer:

yes

Step-by-step explanation:

A quadratic function has the general form

fx) = ax² + bx + c ( a ≠ 0 )

f(x) = x² - 2x + 3 ← is in this form and is a quadratic function

6 0
4 years ago
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SCORPION-xisa [38]

Answer:

d

Step-by-step explanation:

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