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Brrunno [24]
3 years ago
6

Find the sum for: (3x^2+4x−1)+(−2x^2−3x+2)=

Mathematics
1 answer:
Phantasy [73]3 years ago
7 0

Answer:

x^2+x+1

Step-by-step explanation:

(3x^2+4x−1)+(−2x^2−3x+2)

Combine like terms

3x^2-2x^2+4x-3x-1+2

x^2+x+1

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Vera took 10 tests over a time of 5 weeks. After 9 weeks this quarter, how many tests will Vera have taken?
seropon [69]

Answer:

18

Step-by-step explanation:

18

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/ 5 weeks =   / 9 weeks

10* 9= x5

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3 years ago
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Julli [10]
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3 years ago
Shilpa bought 30 T-shirt at a clothing store. 20% of the t-shirt were blue and 1/2 of the t-shirts were black. Howmany of the t-
k0ka [10]
The number of T-shirt bought by Shilpa from a clothing store = 30
Percentage of T-shirt that were blue = 20%
Then Number of T-shirt that were blue in color = (20/100) * 30
                                                                           = 2 * 3
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Number of T-shirts that were black in color = (1/2) * 30
                                                                     = 15
Then
The total number of T-shirts that were black and blue = (15 + 6)
                                                                                     = 21
Then
The total number of T-shirts that were neither black nor blue = 30 - 21
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So the number of T-shirts that were neither black nor blue was 9.
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Say you have 29 dogs 4 are puppies you want to get rid of two puppies how many dogs will you have left?
padilas [110]

Answer:

27

Step-by-step explanation:

cuz 29 - 4 - 2 = 27

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