Absolute value x-2=12

Mathematics

2 answers:

jeyben [28]3 years ago

5 0

Absolute value would be x=14

Evgen [1.6K]3 years ago

5 0

I assume you mean |x-2| = 12 ?

|x-2| = 12
|x-2| = -12

Solve for |x-2| = 12 first
|x-2| = 12
x -2 + 2 = 12 + 2
x = 14
Now solve for |x-2| = -12
|x-2| = -12
x - 2 + 2 = -12 + 2
x = -10

So x = 14 and x = -10

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How do i solve this question, anyone help

Degger [83]

Answer:

a. $\sqrt{52}$ cm or 7.21cm

b. $\sqrt{170}$ cm or 13.04cm

c. x= $\sqrt{136}$ cm or 11.66cm, y= $\sqrt{191}$ cm or 13.82cm

Step-by-step explanation:

a. You have to find the length of the other two sides of the triangle using the information already given. The first side is 6cm and the other is 12-9=4cm. Because it's a right-angled triangle you can use pythagoras

$c^2=a^2+b^2\\x^2=6^2+4^2\\x^2=36+16\\x^2=52\\x=\sqrt{52}cm \\x=7.21cm$

b. You can use pythagoras again because it's a right-angle triangle

$x^{2} =7^2+11^2\\x^2=170\\x=\sqrt{170} cm\\ = 13.04cm$

c. In this question you have to find x and y. We need to find x first using pythagoras

$x^2=6^2+10^2\\x^2=136\\x=\sqrt{136}cm \\=11.66cm$

Now that we've found x we can find y using pythagoras but instead of find c, we will find another side

$c^2=a^2+b^2\\19^2=\sqrt{170} ^2 + b^2\\361=170+b^2\\361-170=170+b^2-170\\191=b^2\\b=\sqrt{191}cm \\=13.82cm$

Hope this helps :)

8 0

2 years ago

To turn 2/5 into a decimal what operation must you preform

saw5 [17]

Answer:

2/5 =0.4

Step-by-step explanation:

Decimals are one of the method of representation of fractions in which there is power of 10 in the denominator of the fraction. They are 10,100,1000,10,000 ,100,0000 and so

Example = 1/10 = 0.1

1/100 = 0.01

1/1000 = 0.001

In 2/5 we have to make the denominator 10

since in denominator there is five , can be made 10 by multiplying it by 2

2/2 = 1 and 1* x = x , hence if we multiply numerator and denominator by 2 it won't change the fraction.

2/5×2/2=2×2/5×2=4/10=0.4

Thus, 2/5 =0.4 in decimal form.

7 0

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