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kozerog [31]
3 years ago
8

What is the sum of 5a2 - 4a + 3 and -7a2 +4a -6

Mathematics
2 answers:
Pavel [41]3 years ago
5 0
4a-3 it’s the correct answer
zimovet [89]3 years ago
4 0
-4a-3 i think that’s it
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The lengths of the sides of a triangle are in the extended ratio 7​: 9 ​: 10. The perimeter of the triangle is 52 cm. What are t
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Answer:

14 cm, 18 cm, 20 cm

Step-by-step explanation:

7x + 9x + 10x = 26x

equation: 26x = 52

divide each side by 26: x = 2

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check if answer is right: 14 + 20 + 18 = 52

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2 years ago
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Answer:

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Step-by-step explanation:

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Carla is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability that
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Answer:

7/80

Step-by-step explanation:

(3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

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Replace  

so we have (3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

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3 years ago
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