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aksik [14]
3 years ago
10

The area of a square is found by squaring one of its sides, (A = s2). A certain square has an area of z2 + 18z + 81. Factor the

trinomial to find a side of the square.
side = z + 27
side = z + 18
side = z + 9
Mathematics
2 answers:
masya89 [10]3 years ago
7 0

Here is your answer

Given area is

z^2 + 18z + 81

= z^2 + 2× z × 9 + 9^2

[using (a+b)^2= a^2 + 2ab + b^2], we get

= (z+9)^2

we know that area of a square is represented by side^2.

So, here

Side of square is

z+9

HOPE IT IS USEFUL

asambeis [7]3 years ago
7 0

Answer: The correct answer is z+9

Step-by-step explanation:

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8 0
3 years ago
Write the simplified form of (-0.5z + 0.9z) – (-0.3z + 0.9z).
Delicious77 [7]

Answer:

-0.2z

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8 0
2 years ago
Explain the difference between prime and composite numbers
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4 0
3 years ago
Bea has 21 yard of embroidery floss to make bracelets. If each bracelet requires 2 1/3 yards, how many bracelets can she make?
earnstyle [38]

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4 0
3 years ago
6r-r + 8(15-r)+23-6 is it equivalent to 3r+137
natita [175]

Answer:

No, it's not equivalent

Step-by-step explanation:

Try and solve the one with the bracket first. Expand 8(15-r) : 8x15 and 8x-r = 120 - 8r

Therefore, the equation can now be written as:

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Rearrange the like terms together and solve the equation:

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7 0
3 years ago
Read 2 more answers
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