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Maksim231197 [3]
3 years ago
11

What is expanded form for 93,472,810

Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0
90,000,000+300000+400000+700000+2000+800+10
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Police estimate that​ 25% of drivers drive without their seat belts. If they stop 6 drivers at​ random, find the probability tha
Furkat [3]

Answer:

17.80% probability that all of them are wearing their seat belts.

Step-by-step explanation:

For each driver stopped, there are only two possible outcomes. Either they are wearing their seatbelts, or they are not. The drivers are chosen at random, which mean that the probability of a driver wearing their seatbelts is independent from other drivers. So we use the normal probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Police estimate that​ 25% of drivers drive without their seat belts.

This means that 75% wear their seatbelts, so p = 0.75

If they stop 6 drivers at​ random, find the probability that all of them are wearing their seat belts.

This is P(X = 6).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 6) = C_{6,6}.(0.75)^{6}.(0.25)^{0} = 0.1780

17.80% probability that all of them are wearing their seat belts.

3 0
3 years ago
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Kelly walks 0.7 mile to school. Mary walks 0.49 mile to school. Write an inequality using <,>, or = to compare the distanc
katrin2010 [14]
0.7 > 0.49
hope this helps
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3 years ago
The choices are <br> X &lt; -6<br> X &gt; -6<br> X&lt;_ -6<br> X&gt; -6
elena-14-01-66 [18.8K]
  • Starting point of arrow is -6.
  • The arrow is travelling to wards left.
  • I.e the arrow is decreasing and x is decreasing.

Hence the solution is

\\ \tt\hookrightarrow x\in (-\infty,-6]

  • x<=-6
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2 years ago
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I have 7 friends. I owe 3 of my friends a dollar and 4 of my friends owe me a dollar. I can tell the difference between my frien
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Answer:

2

Step-by-step explanation:

either the four friends give you the money first then you give it to the three friends That is one Or youcan ask your parental figure to own you three dallors then you will have more money at the End.

4 0
2 years ago
I need helpp. Which function has its vertex below the x-axis
Dvinal [7]

Answer to the problem:

D

Basically the -8 shows you the y value that the vertex has !! You can also use desmos to visualize

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