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zzz [600]
3 years ago
15

5. En el estado de Puebla sembraron 84,092

Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0

Answer:

128,158 hectáreas

Step-by-step explanation:

Aquí, en esta pregunta, nos interesa calcular las hectáreas totales de trigo que se sembraron entre los tres estados.

Para calcular esto, simplemente sumamos las hectáreas de trigo que se sembraron en cada uno de los estados.

Matemáticamente;

Eso sería; 84,092 + 42,634 + 1,432 = 128,158 hectáreas

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Half-life of Po-210 is 140 days. If the initial mass of the sample is 5
Anna35 [415]

Answer:

0.625kg

Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

we want to figure out the remaining mass <u>after</u><u> </u><u>4</u><u>2</u><u>0</u><u> </u><u>days</u><u> </u>

in order to solve so we can consider the half-life formula given by

\displaystyle f(t) = a {0.5}^{t/T}

where:

  • f(t) is the remaining quantity of a substance after time t has elapsed.
  • a is the initial quantity of this substance.
  • T is the half-life

since it halves every 140 days our T is 140 and t is 420. as the initial mass of the sample is 5 our a is 5

thus substitute:

\displaystyle f(420)=5\cdot{0.5}^{420/140}

reduce fraction:

\displaystyle f(420)=5\cdot{0.5}^{3}

By using calculator we acquire:

\displaystyle f(420)=0.625

hence, the remaining sample after 420 days is 0.625 kg

4 0
3 years ago
A submarine is descending to examine the seafloor 2,100 feet below the surface. it takes the submarine 2 hours to make this desc
Andrej [43]

Answer:

Step-by-step explanation:

x = time

y = elevation

At x = 0  ,  y  = 0

It takes the submarine 2 hours to make descent of 2100 ft

=> x = 2 , y  = - 2100

Slope = ( -2100 - 0)/(2 - 0)  =  -1050

y - 0 = -1050 ( x -0)

=> y = -1050x

1050x  + y = 0

represent the relationship between the submarine's elevation and time.

3 0
1 year ago
What is 4 times 4 to the second power
adelina 88 [10]

Answer:

Assuming it is (4x4)^2, it is 64.

Step-by-step explanation:

The 4x4 part can basically add 1 to the exponent because you are multiplying a number by itself, and 4^3 is 64.

7 0
3 years ago
What are the mean, median, and mode for the following data set?
FrozenT [24]
Order the number:
15,34,71,75,75,78,78,78,82,90,90,94,100
Mode:78
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Median:78 is your final answer. Hope it help!
3 0
3 years ago
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The revenue, in dollars, of a company that makes toy cars can be modeled by the polynomial 3x2 + 4x – 60. The cost, in dollars,
Tems11 [23]

For this case we have the following quadratic functions:

Revenue: 3x ^ 2 + 4x - 60

Cost: 3x ^ 2 - x + 200

Then, we observe that the profit is given by the following mathematical relationship:

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Substituting values we have:

Profit = (3x ^ 2 + 4x - 60) - (3x ^ 2 - x + 200)

Making the corresponding calculations we have:

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Answer:

An expression that represents the profit is:

Profit = 5x - 260

4 0
3 years ago
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