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3 years ago

What is 4-2x+8+5x simplified

Mathematics

2 answers:

sveta [45]3 years ago

6 0

Answer: it is 3 • (x + 4)

Step-by-step explanation: We move all terms to the left:

4-2x+8-(+5x)=0

We add all the numbers together, and all the variables

-2x-(+5x)+12=0

We get rid of parentheses

-2x-5x+12=0

We add all the numbers together, and all the variables

-7x+12=0

We move all terms containing x to the left, all other terms to the right

-7x=-12

x=-12/-7

x=1+5/7We move all terms to the left:

4-2x+8-(+5x)=0

We add all the numbers together, and all the variables

-2x-(+5x)+12=0

We get rid of parentheses

-2x-5x+12=0

We add all the numbers together, and all the variables

-7x+12=0

We move all terms containing x to the left, all other terms to the right

-7x=-12

x=-12/-7

x=1+5/7

Artemon [7]3 years ago

6 0

4-2x+8+5x
-2x -2x
4 + 8 + 3x
12 + 3x

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3 years ago

If AB=x and x=4, then the transitive property states

Anarel [89]

Answer:

4. AB=4

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3 years ago

Consider the inequality X > - 2.5 Determine whether each value of X makes this inequality true Select ALL that apply.

Leno4ka [110]

Answer:

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Let me know if this helps!

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3 years ago

Read 2 more answers

Given: ABCD ∥gram, BK ⊥ AD , AB ⊥ BD AB=6, AK=3 Find: m∠A, BK, A

Masteriza [31]

Given: ABCD ∥gram,

BK ⊥ AD , AB ⊥ BD

AB=6, AK=3

Find: m∠A, BK

To proof

as given BK ⊥ AD

thus ΔABK is a right triangle.

thus by using the pythagoras theorem

we have

AB² = BK² + AK²

BK² = AB ²- AK²

= 6² - 3²

= 36 - 9

= 27

Hence

BK = $3\sqrt{3}$ unit

Now find the value m∠A

by using the trignometric function

FORMULA

cosA = $\frac{BASE}{HYPOTENUSE}$

cosA = $\frac{3}{6}$

= $\frac{1}{2}$

m∠A = 60°

hence proved

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3 years ago