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timofeeve [1]
3 years ago
14

In a board game, students draw a number do not replace it and then draw a second number

Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Step-by-step explanation:

hiwheiheiheiheiehieg7wtuwb

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The quantity that is arrived at by taking the highest score minus the lowest score is referred to as the?
Delicious77 [7]

Answer:

B) standard range

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3 0
3 years ago
How do i add 6.75 & 3.75?​
Stella [2.4K]

Answer:

It's like adding whole numbers, but with a dot. add 75+75=150

Because 150 is more than 100, you add the 1 to the whole numbers, the 6 and the 3. Add 3+6+1=10

So your answer is 10.5

3 0
3 years ago
A screening test for a certain disease is used in a large population of people of whom 1 in 1000 actually have the disease. Supp
sertanlavr [38]

Answer:

P(D/T)=5.05*10^{-6}

Step-by-step explanation:

Let's call D the event that a person has the disease, D' the event that a person doesn't have the disease and T the event that the person tests negative for the disease.

So, the probability P(D/T) that a randomly chosen person who tests negative for the disease actually has the disease is calculated as:

P(D/T) = P(D∩T)/P(T)

Where P(T) = P(D∩T) + P(D'∩T)

So, the probability P(D∩T) that a person has the disease and the person tests negative for the disease is equal to:

P(D∩T) = (1/1000)*(0.005) = 0.000005

Because 1/1000 is the probability that the person has the disease and 0.005 is the probability that the person tests negative given that the person has the disease.

At the same way, the probability P(D'∩T) that a person doesn't have the disease and the person tests negative for the disease is equal to:

P(D'∩T) = (999/1000)*(0.99) = 0.98901

Finally, P(T) and P(D/T) are equal to:

P(T) = 0.000005 + 0.98901 = 0.989015

P(D/T) = 0.000005/0.989015 = 5.05*10^{-6}

8 0
3 years ago
An animal gained 3 kilograms over 15 years what is the unit rate of kilograms per year
enot [183]
.2 kilo grams I think
6 0
3 years ago
Please answer the attached question and chose from the provided options.
Marat540 [252]

Answer:

Option A -\frac{19}{74}+\frac{71}{74}i

Step-by-step explanation:

we know that

To divide complex numbers, you must multiply by the conjugate.

we have

\frac{-8+3i}{5+7i}

To find the conjugate, change the sign between the two terms in the denominator

so

\frac{-8+3i}{5+7i}(\frac{5-7i}{5-7i})=\frac{-40+56i+15i-21i^{2}}{25-49i^{2}} \\\\=\frac{-40+71i-21(-1)}{25-49(-1)} \\\\=\frac{-19+71i}{74}\\\\=-\frac{19}{74}+\frac{71}{74}i

6 0
3 years ago
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