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Goshia [24]
2 years ago
12

Pls HelP Me ASAP!~!~!~! Describe and correct the error |-13|-|13| =-13-13 =-26

Mathematics
1 answer:
vazorg [7]2 years ago
6 0

Answer:

The error is that the question equals -13-13.

Step-by-step explanation:

This is absolute value, so anything inside of the bars is positive. Since the first -13 has bars around it it would be positive. But since the second - is outside of the 13 with bars, the 13 stays negative, so it would be 13-13. Hope this helps! :)

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Afina-wow [57]

Since we are working with an equation written in scientific notation and we are dealing with a negative exponent, we are going to divide 4.7 by 10 three times.

4.7 / 10 = 0.47

0.47 / 10 = 0.047

0.047 / 10 = 0.0047

Best of Luck!

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A litre is bigger than a millilitre. 
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-(x-7)+five over three =2(x+9)
jeka57 [31]

Answer:

x=-3\frac{1}{9}

Step-by-step explanation:

Given expression:

-(x-7)+\frac{5}{3}=2(x+9)

To solve for x

Solution:

Using distribution:

-x-(-7)+\frac{5}{3}=2x+2(9)

-x+7+\frac{5}{3}=2x+18

Adding x to both sides.

-x+7+\frac{5}{3}+x=2x+18+x

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7+\frac{5}{3}-18=3x+18-18

\frac{5}{3}-11=3x

Multiplying each term with 3 to remove fractions.

3\times\frac{5}{3}-3(11)=3\times 3x

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Dividing both sides by 9.

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4 0
3 years ago
Write the equation of the parabola in vertex form that has the following properties: passes through the point (2, 12) and has a
tatuchka [14]

Answer:

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Step-by-step explanation:

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16 = 4a

a = 4

Therefore the equation (in vertex form) of parabla is:

                                 <u> f(x) = 4(x - 4)² - 4  </u>

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Answer:

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Step-by-step explanation:

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