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PIT_PIT [208]
3 years ago
13

Emma uses 250 centimeters of crepe paper to make streamers. How many meters did Emma use

Mathematics
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

25 is what I got

Triss [41]3 years ago
4 0

Answer:

2.5

Step-by-step explanation:

250 cm equals 2.5 m

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Answer: 1,2

Step-by-step explanation:

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A new medical test provides a false positive result for hepatitis 2% of the time that is a perfectly healthy subject being teste
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Given that X <span>be the number of subjects who test positive for the disease out of the 30 healthy subjects used for the test.

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Part A:

</span><span>The probability that all 30 subjects will appropriately test as not being infected, that is the probability that none of the healthy subjects will test positive is given by:

</span>P(X)={ ^nC_xp^x(1-p)^{n-x}} \\  \\ P(0)={ ^{30}C_0(0.02)^0(1-0.02)^{30-0}} \\  \\ =1(1)(0.98)^{30}=0.5455
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Part B:

The mean of a binomial distribution is given by

</span>\mu=np \\  \\ =30(0.02) \\  \\ =0.6
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</span>\sigma=\sqrt{np(1-p)} \\ \\ =\sqrt{30(0.02)(1-0.02)} \\ \\ =\sqrt{30(0.02)(0.98)}=\sqrt{0.588} \\  \\ =0.7668
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Part C:

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5 0
3 years ago
What are the lengths of the legs of a right triangle in which one acute angle measures 19° and the hypotenuse is 15 units long?
Deffense [45]
So you have a right angle triangle. You need to use trig for this, as you have two values you can figure out a third.

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90 deg. angle
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How do you write 9/10 as a decimal?
kykrilka [37]
Hey there! 

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So, 
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Answer: 0.9

Thank you for being part of the Brainly community! 
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