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Sloan [31]
3 years ago
6

2. Dentre as formas de representar um número decimal, a mais comum é a que utiliza vírgula. Valor como 0,25 está presente nos co

mércios, nos hospitais, nas lanchonetes e em muitos outros lugares. Esse valor também pode ser representado por A. ( ) 25/10 B. ( ) 1/4 C. ( )1/25 D. ( ) 1/25
Mathematics
1 answer:
sleet_krkn [62]3 years ago
4 0

Answer:

B: 0.25 = 1/4

Step-by-step explanation:

Queremos encontrar otra representación del número 0.25

Notar que hay dos decimales luego de la coma, por lo que podemos multiplicar este número y dividir por 100.

0.25 = 0.25*1 = 0.25*(100/100) = (0.25*100)/(100) = 25/100

Ahora tenemos el número escrito como una fracción, la cual debemos simplificar.

25/100

Podemos ver que tanto el numerador como el denominador son multiplos de 5, por lo que podemos dividir ambos por 5:

25/100 = (25/5)/(100/5) = 5/20

Nuevamente, ambos son multiplos de 5, por lo que podemos dividir ambos por 5.

5/20 = (5/5)/(20/5) = 1/4

así tenemos:

0.25 = 25/100 = 5/20 = 1/4

0.25 = 1/4

La opción correcta es B.

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QveST [7]

FG goes through the center of the circle, so FG is diameter.

d = 2r \\ r =  \dfrac{d}{2}  \\  \\ r =  \dfrac{6}{2}  = 3

EH=r=3

Answer: EH=3

4 0
3 years ago
HELP !!!! when will someone -
Marina86 [1]

Answer:

Step-by-step explanation:

a) (3,5)

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c) 10 units

Hope that helps!

5 0
3 years ago
The angle of elevation to a nearby tree from a point on the ground is measured to be 64^{\circ}
Sliva [168]

Answer:The tree is 186.6 feet tall.

Step-by-step explanation:SOH-CAH-

T

​

OA

\text{tan }\color{purple}{64}=\frac{\color{green}{\text{opposite}}}{\color{blue}{\text{adjacent}}}=\frac{\color{green}{x}}{\color{blue}{91}}

tan 64=

adjacent

opposite

​

=

91

x

​

\text{tan }64=

tan 64=

\,\,\frac{x}{91}

91

x

​

\frac{\text{tan }64}{1}=

1

tan 64

​

=

\,\,\frac{x}{91}

91

x

​

91\text{ tan }64=

91 tan 64=

\,\,x

x

Cross multiply.

x=186.577649...\approx186.6

x=186.577649...≈186.6

Type into calculator and round to the nearest tenth.

\text{The tree is 186.6 feet tall.}

The tree is 186.6 feet tall.

8 0
3 years ago
What is 3/12 in its simplest form?
Sveta_85 [38]

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1/6 I think

Step-by-step explanation:

4 0
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3 schools are participating in a donut fundraiser and shipments have been delivered each pallet has 10 cartons East curtain has
marin [14]

Answer: Each class get 1121 donuts (3 donuts are still left).

Step-by-step explanation:

Given : 1 pallet has 10 cartons.

1 carton has 10 boxes.

1 box has 10 donuts.

So, 1 pallets has 10 x 10 x 10 =100 donuts

1 carton has 10 x 10 =100 donuts

In shipment,5 pallets, six cartons and eight individually wrapped donuts

= 5x 1000+6x 100+  8

=5608

Total classes =5

Number of donuts 1 class get = 5608 ÷5 =1121\dfrac{3}{5}

So each class get 1121 donuts (3 donuts are left).

7 0
3 years ago
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