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son4ous [18]
3 years ago
14

BRAINLIESTTTT ASAP! please answer

Mathematics
1 answer:
romanna [79]3 years ago
8 0
Simply add b^{2} to both sides of the equation:

a^{2} =c^{2} + b^{2}
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There are 7 males and 5 females and we need to select 4 different people. how many ways can we select 4 people?
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\displaystyle \binom{12}{4}=\dfrac{12!}{4!8!}=\dfrac{9\cdot10\cdot11\cdot12}{2\cdot3\cdot4}=495

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How many edges does a square pyramid have?
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8

Step-by-step explanation:

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The four corners of a square are located at (-7, -2), (-7,5), (0,5), and (0, -2). What is the perimeter of the square?
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What is the value of x in this figure?
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4 0
3 years ago
Una piscina rectangular de 15 metros de largo por 9 metros de ancho està rodeada por un
stira [4]

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Step-by-step explanation:

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= 4w^2+30w+18w+135\\\\=4w^2+48w+135

Area of road = (Area of road with pool ) -(area of pool)

\Rightarrow\ 112 =4w^2+48w+135- 135\\\\\Rightarrow\ 112= 4w^2+48w\\\\\Rightarrow\ 4 w^2+48w-112=0\\\\\Rightarrow\ w^2+12w-28=0\ \ \ [\text{Divide both sides by 4}]\\\\\Rightarrow\ w^2+14w-2w-28=0\\\\\Rightarrow\ w(w+14)-2(w+14)=0\\\\\Rightarrow\ (w+14)(w-2)=0\\\\\Rightarrow\  w=-14\ or \ w=2

width cannot be negative, so w=2 meters

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8 0
3 years ago
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