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gtnhenbr [62]
3 years ago
5

3 rooms are occupied by disease x, 4 by disease y, 2 rooms by disease z and 1 by disease a. What is the probability that a rando

m room does not contain disease y?
Mathematics
2 answers:
Zolol [24]3 years ago
6 0

Answer:

6/10

Step-by-step explanation:

dhdhdhcebwbshxhdnsncmfnnsjcndnendn

Anna71 [15]3 years ago
3 0

Answer:

6/10

Step-by-step explanation:

[P(x) + P(z) + P(a)]/P(all) = (3+2+1)/(3+4+2+1) = 6/10

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2 years ago
What number is 120% of 20?
Lera25 [3.4K]
I’m pretty sure is 14
7 0
3 years ago
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nikdorinn [45]

Answer:

D) 90 inches

Step-by-step explanation:

There are 36 inches in a yard (3 feet)

To find how many inches, multiply the numbers.

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3 years ago
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max2010maxim [7]

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5 0
2 years ago
What’s the answer to this?
inna [77]

Since the triangle is equilateral, all its angles are equal to 60°

AO is the bisector⇒∠OAD = 30°

AO is the hypotenuse, ∠OAD = 30°⇒

OD=5*2=10m

By the Pythagorean theorem

10^2=AD^2+5^2\\AD=\sqrt{100-25} \\AD=\sqrt{75}

AC=AD+DC=2\sqrt{75}=10\sqrt{3}

S=\frac{a^2\sqrt{3} }{4}

S=\frac{(10\sqrt{3})^2\sqrt{3}  }{4} =\frac{300\sqrt{3} }{4} =75\sqrt{3} m^2

Answer: A) S=75\sqrt{3}m²

P.S. Hello from Russia and sorry for my bad english :^)

3 0
2 years ago
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