2 years ago

What is 87,200,000 written in scientific notation?

Mathematics

2 answers:

Elan Coil [88]2 years ago

3 0

Answer:

8.72 • 10^7

Step-by-step explanation:

jasenka [17]2 years ago

3 0

87,200,000 in scientific notation is 8.72x10^7
Hope that helps :D

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|3O+(-17)| I REALLY NEED TO KNOW PLZZZZZ

Soloha48 [4]

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

➷ $30 + 17$

➷ $30 + -17$

➷ $= 13$

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➶ Hope This Helps You!

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↬ May ♡

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2 years ago

Read 2 more answers

Find the expected value of the winnings from a game that has the following payout probability distribution: Skip Payout ($) 1 2

Nezavi [6.7K]

Answer:

$4.35

Step-by-step explanation:

The expected value of a random variable X, often denoted as E(X), indicates the probability-weighted average of all possible values/events. The general formula of expected value is

$\mathrm{E(\textit X \mathrm)} = \displaystyle\sum_{\mathclap{i=1}}^{k} \ X \times P(X) \\ \\ \\ = X_{1} \times P(X_{1}) \ + \ X_{2} \times P(X_{2}) \ + \ X_{3} \times P(X_{3}) + \ \cdots \ + X_{k} \times P(X_{k})$ .

Therefore, the expected value of the winnings from a game is

$\mathrm{E(\textit X \mathrm)} \ = \ 1 \times 0.35 \ + \ 2 \times 0.2 \ + \ 5 \times 0.1 + \ 8 \times 0.2 \ + 10 \times 0.15 \\ \\ = \ 4.35 \ \ (\mathrm{nearest \ hundredth})$ .