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2 years ago

11

Which of the following are solutions to | x + 4 |= 3x-5

2 answers:

andrey2020 [161]2 years ago

7 0

X= 9/2

X= 4.5

X= 4 1/2

Serhud [2]2 years ago

5 0

Answer: 9/2

Step-by-step explanation:

1.Break down the problem into these 2 equations.

x+4=3x−5

−(x+4)=3x−5

2. Solve the 1st equation: x+4=3x−5.

x=9/2

3. Solve the 2nd equation: −(x+4)=3x−5

x=1/4

4. Collect all solutions.

x=1/4,9/2

5. Check solution

When x=1/4, the original equation ∣x+4∣=3x−5 does not hold true.

We will drop x=1/4 from the solution set.

6. Therefore,

x=9/2

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Lapatulllka [165]

<span>MP3 player is $60
</span><span>The selling price is $105

</span><span>A classmate says that the markup is 175% because $105/$60=1.75 . Is your classmate correct?

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3 years ago

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2 years ago

How is the graph of the parent function y = StartFraction 1 Over x EndFraction transformed to create the graph of y = negative S

faltersainse [42]

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Step-by-step explanation:

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2 years ago

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Answer:

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2 years ago

Simplify (2z^5)(12z^3)/4z^4

Sphinxa [80]

Answer:

$6z^{4}$

Step-by-step explanation:

Given in the question an expression,

$\frac{ (2z^5)(12z^3)}{4z^4}$

Step 1

Apply exponential "product rule"

$x^{m}x^{n}=x^{m+n}$

$\frac{ 12(2)z^5)(z^3)}{4z^4}$

$\frac{ (24)z^5)(z^3)}{4z^4}$

$\frac{ 24(z^{(5+3)})}{4z^4}$

$\frac{ 24(z^{8})}{4z^4}$

Step 2

Apply exponential " divide rule"

$\frac{x^{m}}{x^{n}}=x^{m-n}$

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$\frac{6(z^{8})}{z^4}$

$\frac{6(z^{8-4})}{1}$

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5 0

2 years ago