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nexus9112 [7]
3 years ago
5

Find the area of a circle with the radius 48mm. Use 3.14 as pie. Round to the nearest hundredth if necessary.

Mathematics
1 answer:
inn [45]3 years ago
7 0

48 \times 3.14

150.72mm^2

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14 laps of swimming will take her 10 1/2 minutes.
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Write an equivalent expression for 8(3+5•)+7•+4 if•
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8 times 3 then 8 times 5 then add the two then write the rest of the expression
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A rectangle with a perimeter of 19m^2+2m-10 and a width of m^2 write an expression for the lenght
expeople1 [14]

Answer:

8.5m^{2}+ m -5

Step-by-step explanation:

Since perimeter, P=19m^{2}+ 2m -10 and we know that P=2(l+w) then P=2(l+m^{2})=2l+2m^{2}

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Now l=8.5m^{2}+ m -5

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3 years ago
A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles
worty [1.4K]

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}

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P= \frac{1}{27}

This converts to a percentage of:

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8 0
3 years ago
RESOLVER LOS SIGUIENTES SISTEMAS DE ECUACIONES APLICANDO EL METODO DE SUSTITUCION
kiruha [24]

Answer:

x = 1/2; y = 1/3

Step-by-step explanation:

2x + 3y = 2     Eq. 1

-6x + 12y = 1     Eq. 2

Eq. 1

2x + 3y = 2

2x = -3y + 2

x = -3/2 y + 1

Eq. 2

-6x + 12y = 1

De Eq. 1 sabemos que x = -3/2 y + 1

-6x + 12y = 1

-6(-3/2 y + 1) + 12y = 1

9y - 6 + 12y = 1

21y - 6 = 1

21y = 7

y = 7/21

y = 1/3

Eq. 1

2x + 3y = 2

2x + 3(1/3) = 2

2x + 1 = 2

2x = 1

x = 1/2

Respuesta: x = 1/2; y = 1/3

3 0
3 years ago
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