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solmaris [256]
3 years ago
11

Please help need it for a grade

Mathematics
2 answers:
bogdanovich [222]3 years ago
7 0

Answer:

6xy²+7-x²y²-5x²y+3x²y²=6x²+7+2x²y²-5x²y

jonny [76]3 years ago
6 0

Answer:

distribute the negative to the equation inside the parentheses. then put like terms together. you see there is x^2y^2 and 3x^2y^2 these are like terms. So 3-1 is 2. so then it will be 2x^2y^2. The other numbers don't have any like terms, so they stay the same

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The difference between twice a number and 8
Otrada [13]

Answer:

2x-8

Step-by-step explanation:

2x-8

6 0
2 years ago
Alex earned scores of 60, 74,82,87,87,and 94 on his first six algebra tests. What is the relationship between the measures of ce
DiKsa [7]

Answer:

mean <median <mode

Step-by-step explanation:

We must calculate the measures of central tendency, which are the mode, the mean and the median.

fashion, value that is most repeated, in this case 87

median, the mean value, how is an even number, the mean is the average of these central numbers, in this case it is 82 and 87

(82 + 87) / 2 = 84.5

average, is the average of all the data, we calculate it like this:

(60 + 74 +82 +87 +87+ 94) / 6 = 80.66

Therefore, the relationship would be like this:

mean <median <mode

6 0
3 years ago
What is a simplified expression for (x + y)-(x + y)?
Evgesh-ka [11]

Answer:

0

Step-by-step explanation:

(x + y)-(x + y)

5 0
3 years ago
Need someone to help that KNOWS the ANSWER PLSSS HELP
amm1812

Answer:

72 inches

Step-by-step explanation:

The perimeter is the sum of the outside "fence"

The side on the left that is not marked is 19-11 = 8

And the side on the top that is not marked is 17-10 = 7

Summing up the sides starting at 19 and going clockwise

19+17+11+7+8+10 =

72 inches

5 0
3 years ago
What is the ratio of 140:160
levacccp [35]

Answer:

it reduces to 7:8

Step-by-step explanation:

just put it like a fraction like 140/160. it simplifies to 7/8

4 0
3 years ago
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