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sasho [114]
3 years ago
7

PLSSSSSSSSSSSSSSSSSS HELP!!!!!!!!!!!!!!

Mathematics
2 answers:
user100 [1]3 years ago
4 0
19+0.6+0.05

You just have to remember your: ones, tens, hundreds, and thousands
yKpoI14uk [10]3 years ago
3 0

Hello.

The answer is: 10 + 9 + 0.6 + 0.05

Remember: Tens ,Ones, Tenth , Hundredths

Have a nice day

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a girl that is 4 feet tall standing 2 feet from a mirror sees the reflection of a flag pole that is 12 feet from the mirror how
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the pole is 24 feet tall

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the mirror make every thing half its size

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How do you compare 7/8 ___ 15/16 ?
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7/8 < 15/16

Step-by-step explanation:

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Step-by-step explanation:

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A study indicates that 37% of students have laptops. You randomly sample 30 students. Find the mean and the standard deviation o
Brilliant_brown [7]

Answer:

The mean and the standard deviation of the number of students with laptops are 1.11 and 0.836 respectively.

Step-by-step explanation:

Let <em>X</em> = number of students who have laptops.

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A random sample of <em>n</em> = 30 students is selected.

The event of a student having a laptop is independent of the other students.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.

The mean and standard deviation of a binomial random variable <em>X</em> are:

\mu=np\\\sigma=\sqrt{np(1-p)}

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\mu=np=30\times0.37=1.11

The mean of the random variable <em>X</em> is 1.11.

Compute the standard deviation of the random variable <em>X</em> as follows:

\sigma=\sqrt{np(1-p)}=\sqrt{30\times0.37\times(1-0.37)}=\sqrt{0.6993}=0.836

The standard deviation of the random variable <em>X</em> is 0.836.

5 0
3 years ago
David charges $17 plus $7.00 per hour to mow lawns. Ari charges $11 plus $7.75 per hour to mow lawns. In what situations is Ari'
iren2701 [21]

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Ari's is less than Davids

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Step-by-step explanation:

5 0
3 years ago
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