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snow_lady [41]
3 years ago
5

The table shows the relationship y = ks.

Mathematics
1 answer:
Andreyy893 years ago
8 0
The answer is 5 because 60\12=5
And 45/9=5 Hope I helped can you mark brainliest
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An experiment consists of rolling a number cube. What is the probability of rolling two 4's in a row?
tigry1 [53]

Answer:2/12

Step-by-step explanation:

8 0
2 years ago
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A TV studio has brought in 8 boy kittens and 10 girl kittens for a cat food commercial.
kondor19780726 [428]

Answer:

0.323 = 32.3% probability that the director chooses 3 boy kittens and 5 girl kittens.

Step-by-step explanation:

The kittens are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

A TV studio has brought in 8 boy kittens and 10 girl kittens for a cat food commercial.

This means that N = 8 + 10 = 18

We want 3 boys, so k = 8

The director is going to choose 8 of these kittens at random to be in the commercial.

This means that n = 8

What is the probability that the director chooses 3 boy kittens and 5 girl kittens?

This is P(X = 3).

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 3) = h(3,18,8,8) = \frac{C_{8,3}*C_{10,5}}{C_{18,8}} = 0.323

0.323 = 32.3% probability that the director chooses 3 boy kittens and 5 girl kittens.

3 0
3 years ago
Find the circumference of the pizza to the nearest whole number.
Sonja [21]

C= 2πr

C= 2 x 3.14 x 7

C = 43.96 inches

4 0
3 years ago
Please help it’s geometry
murzikaleks [220]

Answer:

x = -4

Step-by-step explanation:

EM = 5x

ET is half of EM so this statement is true: 5x = 2(3x + 2)

Solve for x.

5x = 2(3x +2)

Distribute 2.

5x = 6x + 4

Isolate x.

-x = 4

Divide -1 out.

x = -4

7 0
3 years ago
The answers to (a)-(d) work is not needed just answers
Debora [2.8K]
A)  n(a) = 25 + 15 = 40
b) n(b) = 42+15 =57
c) n (a U b) = 25 +15+ 42 = 82 
d) n (a') = 42
e) n(b') = 25
f)  n(a intersection b)' =  82-15 = 67 
g) n (a U b)' =     14 
h)  n (a'  intersection  b') =  14
i)  n (a' U b') = 42 + 25 +14 = 81 


hope i helped a bit .. :-)
6 0
3 years ago
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