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larisa [96]
3 years ago
5

Simplify: 1(-3.86 + 6.82)| + |(4.02 - 12.45)||

Mathematics
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

11.39

Step-by-step explanation:

-3.86+6.82=2.96

abs(2.96)=2.96

----------------------

4.02-12.45=-8.43

abs(-8.43)=8.43

-----------------------

1(2.96)+8.43=2.96+8.43=11.39

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Can you do this for me 3x+y=10, 2x^2+y^2=19​
galina1969 [7]

Answer:

1 , 29/11

Step-by-step explanation:

3x+y = 10 ....(1)

2x² +y² = 19 ....(2)

3x+y= 10

y = 10-3x

substituting the value of y in 2nd equation

2x² + y² = 19

2x² + (10-3x)² = 19

2x² + 100 + 9x² - 60x -19 = 0

11x² - 60x +81 = 0

11x² - 33x - 27x + 81 = 0

11x( x-3) - 27(x-3) = 0

(x-3)(11x-27) = 0

x = 3, 27/11

substituting x value on first equation

x= 3 x= 27/11

y= 10-3(3) y= 10 - 81/11

= 10-9 = (110-81)/11

= 1 = 29/11

Hope it helps...

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3 years ago
An item is regularly priced at $29. It is on sale for 80% off the regular price.
Vikki [24]
And the question is????
8 0
2 years ago
Jack has a painting that measure 3gt tall by 4ft wide. Jack wants to get the painting matted and framed and hang it in between t
PolarNik [594]

Answer:

8 inches

Step-by-step explanation:

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How many names does the angle have? What are those names?
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Step-by-step explanation:

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*^#Emmy#^*

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