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OverLord2011 [107]
3 years ago
15

S and T are mutually exclusive events. Find p(s or t) p(s)=10/13, p(t)=1/3​

Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

p(s) + p(t) = p(s or t)

just add the fraction together. remember denominators must be the same

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Step-by-step explanation:

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2 years ago
If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

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t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

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Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0
3 years ago
What is pi x 5 radius squared
Shalnov [3]

Hi!

5^2 is 25

so it's 25pi

or 78.54

Hope this helps!

6 0
3 years ago
Someone please help ASAP. 15 points and I’ll mark brainliest.
lyudmila [28]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
mike wants to buy the same number of balloons for 2 of his friends. her has $59, and each balloon costs $7. What is the largest
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Answer:

4

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so 8/2=4

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3 years ago
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