3 years ago

Idk get this questions it says find the varible 4(x+6)=28? does anyone kno this?

Mathematics

2 answers:

otez555 [7]3 years ago

7 0

Answer: hope this helps!

Step-by-step explanation:

Vilka [71]3 years ago

6 0

Answer:

x=1

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation. Pull out like factors. Solve : x-1 = 0

Add 1 to both sides of the equation :

x = 1

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Nimfa-mama [501]

First of all, we can observe that

$x^2-6x+9 = (x-3)^2$

So the expression becomes

$\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}$

This means that the expression is defined for every $x\neq 3$

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

$x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2$

Since we can't accept 3 as an answer, the actual solution set is

$(-\infty,-2] \cup [2,3) \cup (3,\infty)$

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2 years ago

What is the sum of the interior angles of the polygon shown below?

Len [333]

Answer:

360

Step-by-step explanation:

Formula

Sides -2 ×180

4-2=2×180=360

3 0

2 years ago

I have a test on these type of questions and don't know what to do....

3241004551 [841]

Answer:

You take the info and answer the questions with guidance from the tables

Step-by-step explanation:

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2 years ago

What is the square root of -1

aalyn [17]

Answer:

"i". There's no more than that. Its just "i".

Step-by-step explanation:

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A recipe requires 1/2 cup of flour for every batch of cookies. How many full batches of cookies can be made with 5 and 1/2 cups

Eduardwww [97]

Answer:

Step-by-step explanation:

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