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Darina [25.2K]
2 years ago
15

Which number is NOT a perfect square? 99 64 144 81

Mathematics
2 answers:
snow_tiger [21]2 years ago
3 0
99 it’s not a square number!

square root of:
64 - 8
144 - 12
81 - 9
Zigmanuir [339]2 years ago
3 0

A, 99

8 x 8 = 64

12 x 12 = 144

9 x 9 = 81

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Plz help i will be grateful if someone help
Sonja [21]

Answer:

4698

Step-by-step explanation:

We know that 1 person is on 3quares, so we need to know how many squares value 3 has every room. We do that in the way- we calculate surface area of every room and divide with 3.

First room has surfaxe 75x75=5625

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So the first room can have 1875 persons.

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7800/3=2600

The 2nd room can have 2600 persons.

3th room has 180 sets, so it is for 180 persons.

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7 0
3 years ago
Sarah had $100 dollars in her bank account, and she spent $88 dollars on concert tickets. How much money is left in her account?
CaHeK987 [17]

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12

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5 0
3 years ago
Solve for y<br><img src="https://tex.z-dn.net/?f=3x%20-%20y%20%3D%20%20-%202y" id="TexFormula1" title="3x - y = - 2y" alt="3x -
SVETLANKA909090 [29]

Step 1: Subtract 3x from both sides. Leaving us with -y = -3x -2y

Step 2: Add 2y to both sides. Leaving us with y = -3x

So, your answer would be y = -3x

4 0
3 years ago
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