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2 years ago

2 x + 5 = 27 solve for x

Mathematics

2 answers:

Mnenie [13.5K]2 years ago

8 0

Answer:

x=11

Step-by-step explanation:

2x+5=27

Subtract 5 on both side of 27

You will get 2x=22

Then divide it by 2

You will get x=11

ANTONII [103]2 years ago

4 0

Answer:

x=11 is the solution of the equation.

Step-by-step explanation:

SIMPLE EQUATIONS:-

2x+5=27. (By Transpotion Method)

2x=27-5. (Transposing 5 from LHS to RHS). (addition changes to subtraction)

2x=22. (Transposing 2 from LHS to RHS).

(multiplication changes to division)

x=22÷2.

x=11

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2 years ago

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Please help. Thank you

love history [14]

Answer:

The length of side x is $x = \sqrt{6}$

Step-by-step explanation:

Pythagorean Theorem:

In a right triangle, with sides a and b, and hypothenuse h, we have that:

$a^2 + b^2 = h^2$

In this question:

The vertical line on the sides means that both are equal, that is, measuring x, so $a = b = x$ .

Hypothenuse is the square root of 12. So $h = \sqrt{12}$

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1 year ago

Find the product. (2x+3)(2x+3)

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Answer:

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Step-by-step explanation:

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2 years ago

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Complete the steps to solve the polynomial equation x3 – 21x = –20. According to the rational root theorem, which number is a po

jeka94

Answer:

Zeroes : 1, 4 and -5.

Potential roots: $\pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20$ .

Step-by-step explanation:

The given equation is

$x^3-21x=-20$

It can be written as

$x^3+0x^2-21x+20=0$

Splitting the middle terms, we get

$x^3-x^2+x^2-x-20x+20=0$

$x^2(x-1)+x(x-1)-20(x-1)=0$

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Splitting the middle terms, we get

$(x-1)(x^2+5x-4x-20)=0$

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$(x-1)(x+5)(x-4)=0$

Using zero product property, we get

$x-1=0\Rightarrow x=1$

$x-4=0\Rightarrow x=4$

$x+5=0\Rightarrow x=-5$

Therefore, the zeroes of the equation are 1, 4 and -5.

According to rational root theorem, the potential root of the polynomial are

$x=\dfrac{\text{Factor of constant}}{\text{Factor of leading coefficient}}$

Constant = 20

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2 years ago

HELP ASAP!! What is angle 1 called??

ololo11 [35]

Your right it’s an obtuse angle

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2 years ago