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Natalka [10]
3 years ago
10

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
3 years ago
If 322c = 80+7, what is the value of c?
Damm [24]

Answer:

c = 3

Step-by-step explanation:

Using the rule of exponents

(a^m)^{n} = a^{mn}

note that 32 = 2^{5} and 8 = 2³ , then

32^{2c} = 8^{c+7} , becomes

(2^5)^{2c} = (2^3)^{c+7}

2^{10c} = 2^{3c+21}

Since the bases on both sides are equal, both 2, then equate the exponents

10c = 3c + 21 ( subtract 3c from both sides )

7c = 21 ( divide both sides by 7 )

c = 3

4 0
3 years ago
Please help!! This question determines if my friend passes or fails math this year and he has no clue how to solve it
pishuonlain [190]
The answer is 64 (second option)
7 0
3 years ago
Devaughn is 13 years younger than Sydney. The sum of their ages is 75 . What is Sydney's age?
barxatty [35]
S= Sydney
devaughn= s-13

so s+s-13=75
2s-13=75
now I think you can solve the rest.
6 0
3 years ago
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