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2 years ago

Decide if it is always true or never true. x+1/2=x−1/2

Mathematics

2 answers:

Sergio039 [100]2 years ago

7 0

This is true because there is no value of x hope this helped

NNADVOKAT [17]2 years ago

4 0

ALWAYS TRUE

Step-by-step explanation:

Because there is no value of x

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kiruha [24]

-20 is the answer. Your welcome I might have gotten it wrong but at leAst I tried

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3 years ago

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PLEASE HELP ASAP!!!!

DaniilM [7]

Answer:

An independent clause is a group of words that contains both a subject and a predicate. It expresses a complete thought and can stand alone as a sentence. It can also be joined to other dependent or independent clauses to make a more interesting and complex sentence.Step-by-step explanation:

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2 years ago

Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)

Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form $ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

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1 year ago

Solve −3/4n≤3

kogti [31]

<span> <span>n ≥ -4 hope this helps

</span></span>

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3 years ago

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The quotient of 8 times a number and the cube root of the number

galben [10]

Answer:

you would be dividing so it will be n over 8

Step-by-step explanation:

n/8...

hope this helped?

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2 years ago