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3 years ago

9

What are the three methods used to identify sample spaces?

2 answers:

crimeas [40]3 years ago

6 0

In table, organized list and a tree diagram

Ira Lisetskai [31]3 years ago

5 0

I'm not sure what you're asking but i think it can be this

Numbers
Colors
Probability

Hope this helps :)

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David made a class banner out of a large rectangular piece of paper. He cut a triangular piece out of one side, as pictured belo

qwelly [4]

Multiply all sides and you should get your answer!

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3 years ago

What is the value of x? Enter your answer in the box.

Alex73 [517]

X = 9

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4 years ago

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ankoles [38]

Answer:

Answer: 4 Remainder :4

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10 | 44 |

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3 years ago

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What is the unit rate 3 for $5 4 for$6

Elena L [17]

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3 years ago

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the half-life of strontium-90 is approximately 29 years. how much of a 500 g sample of strontium-90 will remain after 58 years

Yuliya22 [10]

Answer: 125 g

<u>Step-by-step explanation:</u>

$A = P_o\cdot e^{kt}\\\\\text{First, use the given information to find k:}\\\\\bullet A=\dfrac{1}{2}P_o\\\\\bullet k = unknown\\\\\bullet t=29\text{ years}\\\\\dfrac{1}{2}P_o=P_o\cdot e^{k(29)}\\\\\\\dfrac{1}{2}=e^{k(29)}\qquad divided\ both\ sides\ by\ P_o\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=ln\bigg(e^{k(29)}\bigg)\qquad applied\ ln\ to\ both\ sides\\\\\\ln\bigg(\dfrac{1}{2}\bigg)=29k\qquad simplified-ln\ and\ e\ cancel\ out\\\\\\\dfrac{ln\bigg(\dfrac{1}{2}\bigg)}{29}=k\qquad divided\ 29\ from\ both\ sides\\\\\\-0.0239=k$

$\text{Now, use the following in the equation to solve for A:}\\\\\bullet A=unknown\\\bullet P_o=500\\\bullet k=-0.0239\\\bullet t=58\text{ years}\\\\A=500\cdot e^{(-0.0239)(58)}\\\\.\quad=500\cdot e^{-1.386}\\\\.\quad=125$

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4 years ago