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ladessa [460]
3 years ago
12

Which expression is equivalent to 10x2 - (2 – 3x) + (5x - 3x2)?​

Mathematics
2 answers:
djverab [1.8K]3 years ago
5 0
10x^2 - (2 - 3x) + (5x - 3x^2)
=7x^ + 2x - 2
maw [93]3 years ago
4 0

Answer:

H) 7x² + 8x - 2

Step-by-step explanation:

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dezoksy [38]

Answer:

x=4

Step-by-step explanation:

tangent lines from the same point to a circle are congruent in length, so we can say that

5x+8 = 8x-4

5x -5x +8 = 8x - 5x -4

8 = 3x - 4

8+4 = 3x -4 + 4

3x = 12

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8 0
3 years ago
What feature might Samantha have used to sort these shapes into the same group
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picture?

Step-by-step explanation:

6 0
3 years ago
Please help me out on here! Will give brainlest
laiz [17]

Answer:

7)

Step-by-step explanation:

The pattern is: add two more than you did before: starting from 2.

It would be:

1, 3, 7, 13,  21,  31, 43, 57

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Now use this to answer the questions.

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6 0
3 years ago
If DF = 9x-39, find EF.
otez555 [7]

DF=DE+EF\\\\DF=9x-39\\DE=47\\EF=3x+10\\\\\text{substitute}\\\\9x-39=47+3x+10\\9x-39=3x+57\ \ \ |-3x\\6x-39=57\ \ \ \ |+39\\6x=96\ \ \ \ |:6\\x=16\\\\\text{put the value of x to the expression}\ 3x+10\\\\EF=3(16)+10=48+10=58

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7 0
3 years ago
GIVING BRAINLIEST FOR BEST ANSWER!
Sav [38]

Answer:

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Step-by-step explanation:

Because 3 1/5 as a decimal is 3.2

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6 0
3 years ago
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