3 years ago

Which expression results in a rational number?

2 answers:

8 0

Answer:

the fourth expression is a rational

3 0

the fourth expression is a rational

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shtirl [24]

Given: ${x}^{2} - 7x + 7y - {y}^{2}$

Now factoring them,

$= > (x - y)(x + y) - 7(x - y)$

$= > (x - y)(x + y - 7)$

Therefore, the answer to the question is $(x - y)(x + y - 7)$

6 0

2 years ago

serious [3.7K]

Answer:

1900M

Step-by-step explanation:

If the athlete runs round a rectangular park, the distance covered can be determined by calculating the perimeter of the park

Perimeter of a rectangle = 2 x (length + width)

2 x (60 + 35) = 190m

Since he run rounds 10 times, the total distance covered = 190m x 10 = 1900m

5 0

3 years ago

katrin [286]

Go do your zoom meeting bruh

3 0

3 years ago

ankoles [38]

Answer:

x^{2}+6x+6 is your answer

7 0

3 years ago

sesenic [268]

30% Bc there are 30 boys and 90 girls or it’s 10% boys

7 0

3 years ago