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seropon [69]
3 years ago
11

Help quick please!!

Mathematics
1 answer:
Korolek [52]3 years ago
3 0

Answer:

Difference of squares:

y^4−25

16x^2−81

Not difference of squares:

20m^2n^2−121

p^8−q^5

Step-by-step explanation:

y^4−25

(y²)² - 5²

16x^2−81

(4x)² - 9²

20m^2n^2−121

20 is not a perfect square

p^8−q^5

q⁵ is not a perfect square

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Answer:

94  boys and 56 girls.

Step-by-step explanation:

150/8 = 18.75 = x

b=x*5 = 94

g=x*3 = 56

b+g=150

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300

Step-by-step explanation:

5x60

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Answer:

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Step-by-step explanation:

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2 years ago
A rectangle has a height of c^3+6c^2+2c and a width of c^2+1
Basile [38]

Answer:

A = c^5+6c^4+3c^3+6c^2+2c

Step-by-step explanation:

The dimensions of a rectangle are length and breadth/width

Here we are given height . Assuming it to be one of the side of the rectangle , we will do the further calculation

Hence one side is

side 1 = c^2+1

And the other side is

Side 2 = c^3+6c^2+2c

The area of rectangle = side 1 x side 2

A= (c^2+1) \times (c^3+6c^2+2c)

Distributing parenthesis

=c^2c^3+c^2\cdot \:6c^2+c^2\cdot \:2c+1\cdot \:c^3+1\cdot \:6c^2+1\cdot \:2c

=c^3c^2+6c^2c^2+2c^2c+1\cdot \:c^3+1\cdot \:6c^2+1\cdot \:2c

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adding similar terms

c^5+6c^4+3c^3+6c^2+2c

Hence Area is given by the above polynomial

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