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2 years ago

3x-x+4=5x-8 . respuesta de esa ecuciojn

Mathematics

2 answers:

Nataly [62]2 years ago

5 0

Answer:

x=4

Step-by-step explanation:

Combine like terms:

2x+4=5x-8

2x+4-4=5x-8-4

Simplify:

2x=5x-12

2x-5x=5x-12-5x:

-3x=-12

Divide both sides by -3:

-3x/3=-12/-3

Answer:

x=4

svetlana [45]2 years ago

4 0

Answer:

x=4

Step-by-step explanation:

Combine like terms

Subtract 4 from both sides of the equation

Simplify

Subtract 5 from both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify

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Simplify the expression √-288

Shtirlitz [24]

Answer:

It is given as √288 = √2 × 144. 144 is a perfect square of 12.

3 0

2 years ago

PLEASE ANSWER ASAP *picture attached*

SVETLANKA909090 [29]

Answer:

$x^{2} -2x-8$

Step-by-step explanation:

(f g)(x) is equal to f(x) times g(x). So you just need to multiply both of the equations together. Use the foil method to multiply (x+2)(x-4)

$(fg)(x)=f(x)*g(x)\\\\(fg)(x)=(x+2)(x-4)\\\\(fg)(x)=x^{2} -4x+2x-8\\\\(fg)(x)=x^{2} -2x-8\\$

I have attached an image to better explain the foil method

4 0

3 years ago

Jet001 [13]

Answer:

119.2

Step-by-step explanation:

Given the following :

Mean (m) = 100 years

Standard deviation (sd) = 15 years

closest to the age of a Galápagos Islands giant tortoise at the 90th percentile of the

distribution?

Obtain the Zscore for 90th percentile (0.90) on the z table = 1.28

Zscore = (X - mean) / standard deviation

1.28 = (X - 100) / 15

1.28 × 15 = X - 100

19.2 = X - 100

19.2 + 100 = X

X = 119.2

3 0

3 years ago

(9, 18)and<br> (3, n) .<br> Find<br> n

Maru [420]

I don't seem to comprehend what you are asking?

8 0

2 years ago

Can anyone please help me with this ?

djverab [1.8K]

Answer:

The distance from point A to the top of the building is 5 $\sqrt{2}$ feet

The Height of the Skyscraper is 5 feet

Step-by-step explanation:

Given

Let Top point of building be point C

Also Let Base of the building be point B

Distance from point A to base B of the building AB= 5 feet

∴ It makes a Right angle triangle

Also ∠ACB = 45°

Also tan 45° = 1

Now tan ∠ACB = $\frac{AB}{BC}$

∴ AB= BC =5 feet

The Height of the Skyscraper is 5 feet

Now Triangle ABC is right angle triangle with right angled at B

So by Pythagoras theorem

AC= $\sqrt{AB^2+BC^2}=\sqrt{5^2+5^2} =\sqrt{50} =\sqrt{25\times2} =\sqrt{5^2\times2}=5\sqrt{2}$

The distance from point A to the top of the building is 5 $\sqrt{2}$ feet

5 0

2 years ago

Read 2 more answers