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monitta
2 years ago
12

Please help me I don’t understand this

Mathematics
1 answer:
Tomtit [17]2 years ago
4 0

Answer:64

Step-by-step explanation:

67

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Explain why 20 is not a square number.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 20 is about 4.472. Thus, the square root of 20 is not an integer, and therefore 20 is not a square number.

8 0
3 years ago
-3x - 6+ (-1)<br> help!!!!
guapka [62]

Answer:

-3x = 7 .  

Step-by-step explanation:

-3x - 6 - 1 =

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Hope that helps!

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3 years ago
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I think it would be 66
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3 years ago
What is the total area of the shape?<br><br> A 35 cm?<br> B 100 cm?<br> C 70 cm?<br> D 50 cm?
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Answer:

C. 70 cm

Step-by-step explanation:

Split all the shapes, so, the square would be:

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Each triangle has an area of 7.5:

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30 + 40 = 70

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