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TEA [102]
3 years ago
11

Funcion. que a cada numero le asocia su mitad​

Mathematics
1 answer:
expeople1 [14]3 years ago
6 0

La función que a cada número le asocia su mitad es: f(x)= x/2

Explicación:

La mitad de una cantidad consiste en dividir el total en dos partes iguales, por lo tanto, la función debe representar una división entre el total y 2. Sea x el total, la función sería:

f(x)= x/2

Ejemplos:

La mitad de 20: f(20)= 20/2 = 10

La mitad de 8: f(8)= 8/2 = 4

La mitad de 100: f(100)= 100/2 = 50

La mitad de 2354: f(2354)= 2354/2 =1177

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What is the length of the dotted line in the diagram below? Leave your answer in simplest radical form.
Pachacha [2.7K]

Answer:

\sqrt{93}

Step-by-step explanation:

8^2+5^2=c^2

64+25=c^2

89=c^2

c=\sqrt{89} <-- this is the length of the rectangle at the bottom

2^2+(\sqrt{89})^2=c^2

4+89=c^2

c=\sqrt{93}  <-- length of dotted line (diagonal)

6 0
2 years ago
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d

Step-by-step explanation:

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If f(x)=(x+1)2+3, what is f(5)?
nika2105 [10]

9514 1404 393

Answer:

  39

Step-by-step explanation:

Put 5 where x is and do the arithmetic.

  f(5) = (5+1)^2 +3 = 6^2 +3 = 36 +3

  f(5) = 39

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2 years ago
Solve the quadratic equation 3x²-3x-1=0?<br>(by using the square method)​
ohaa [14]

Answer:

x=1 and x=-1/3

Step-by-step explanation:

3x^2-2x-1=0\\\\3(x^2-\frac{2}{3}x-\frac{1}{3})=0\\ \\3(x^2-\frac{2}{3}x-\frac{1}{3}+\frac{4}{9})=3(\frac{4}{9})\\ \\ 3(x^2-\frac{2}{3}x+\frac{1}{9})=\frac{4}{3}\\ \\ 3(x-\frac{1}{3})^2=\frac{4}{3}\\ \\(x-\frac{1}{3})^2=\frac{4}{9}\\ \\x-\frac{1}{3}=\pm\frac{2}{3}

x-\frac{1}{3}=\frac{2}{3}\\ \\x=\frac{3}{3}\\ \\x=1

x-\frac{1}{3}=-\frac{2}{3}\\ \\x=-\frac{1}{3}

Therefore, x=1 and x=-1/3

8 0
2 years ago
Rufus earned $230 delivering newspapers during the summer. He bought 5 movie passes worth $15 each from his newspaper money. How
wel

Answer:

155

Step-by-step explanation:

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230 - 75 = 155

Hope this helps!

4 0
3 years ago
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