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3 years ago

What is -0.85 as a fraction

Mathematics

2 answers:

ikadub [295]3 years ago

7 0

-0.85 as a fraction is -17/20.

sladkih [1.3K]3 years ago

5 0

-0.85 is 85 over 100. divide the numerator and the denominator by 5 because 5 is the greatest common factor (GCF). once dividing the 2 numbers you get -17/20. the answer is -17/20

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umka2103 [35]

Answer:

The two equations are similar because they both end up with the same common value. 0=0 The work you need to show that this is correct will be shown below.

Step-by-step explanation:

2(5m−4)−3(m−5)2=−3m2+40m−83

Add 3m^2 to both sides.

−3m2+40m−83+3m2=−3m2+40m−83+3m2

40m−83=40m−83

Subtract 40m from both sides.

40m−83−40m=40m−83−40m

−83=−83

−83+83=−83+83

0=0

If you have any questions regarding my answer please tell me in the comments, I will come and answer them. Have a good day.

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3 years ago

What is the equation in point slope form of the line that passes through the point (2,6) and has slope of 5?

sleet_krkn [62]

Firstly, you can use the slope and the first point to find a second point:
2 + 1 = x2 and 6 + 5 = y2 because the slope is 5/1.
Next you can write the equation in point-slope form (remember point-slope form is y - y1 = m(x - x1):
y - 11 = 5(x - 3)
Another equation would be B because B is the correct equation if you choose 2 as x2 and 6 as y2.
Hope this helps!

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3 years ago

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weeeeeb [17]

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3 years ago

A new medical test provides a false positive result for hepatitis 2% of the time that is a perfectly healthy subject being teste

Oxana [17]

Given that X be the number of subjects who test positive for the disease out of the 30 healthy subjects used for the test.

The probability of success, i.e. the probability that a healthy subject tests positive is given as 2% = 0.02

Part A:

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:

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Part B:

The mean of a binomial distribution is given by

 $\mu=np \\ \\ =30(0.02) \\ \\ =0.6$

The standard deviation is given by:

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Part C:

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3 years ago

Find the ratio of 700m to 2 km

Anika [276]

Answer:

7 : 20

Step-by-step explanation:

2km = 2000m

Then the ratio of 700m to 2 km is :

700 / 2000

Then the ratio in simplest form is :

7 / 20

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2 years ago

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