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stiks02 [169]
4 years ago
11

PROBLEM SOLVING When a plant or animal dies, it stops acquiring carbon-14 from the atmosphere. The amount y in grams) of carbon-

14 in the body of an organism after t years is y= a(0.5)^t/5730, where a is the initial amount (in grams). What percent of the carbon-14 is released each year? Round your answer to the nearest hundredth.
Mathematics
1 answer:
kykrilka [37]4 years ago
4 0

Answer:

0.01%

Step-by-step explanation:

y=a (0.5)^t/5730

y=a [(0.5)^t/5730]

when you put 0.5^1/5730

it'll give you 0.99

The "equation" is y=a(1-r)^t

so 1-0.99 is 0.01

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Answer:

Step-by-step explanation:

5 0
3 years ago
Please help ASAP (28 points)
algol13
  • <em>Answer:</em>

<em>5) x = 8</em>

<em>6) z = 49°</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>5)</em>

<em>we have opposite angles =></em>

<em>5x = 2x + 24</em>

<em>5x - 2x = 24</em>

<em>3x = 24</em>

<em>x = 24 : 3</em>

<em>x = 8</em>

<em>6) </em>

<em><u>The sum of the three interior angles in a triangle is always 180° !</u></em>

<em>x = 180° - (28° + 39°)</em>

<em>= 180° - 67°</em>

<em>= 113°</em>

<em />

<em>x ; y = supplementary angles => </em>

<em>x + y = 180° => </em>

<em>y = 180° - x</em>

<em>= 180° - 113°</em>

<em>= 67°</em>

<em />

<em>z = 180° - (64° + 67°)</em>

<em>= 180° - 131°</em>

<em>= 49°</em>

<em />

<em>Good luck !</em>

<em />

7 0
3 years ago
1/4,5/8,1/2 show work
Romashka [77]

Answer:

1/4+5/8+1/2=7/14 so the answer is 7/14

5 0
3 years ago
_____ &gt; -2°C select one -3,0,-2.5,-5
ryzh [129]

Zero is greater than 2, so second one from the left.

3 0
3 years ago
4=2/7x please awnser
n200080 [17]
4=2/7x
(7)4=2/7x(7)
28=2x
— —
2. 2
14=x

x=14
3 0
3 years ago
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