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Inessa [10]
3 years ago
8

I NEED THIS ASAP!!!!!!!!

Mathematics
2 answers:
drek231 [11]3 years ago
6 0
I know you need this bbc
BabaBlast [244]3 years ago
5 0
The answer is A. When you add 2 to -3 the result is -1 which is where the arrow on the number line ends
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Helpp Its for calculus
Troyanec [42]

Answer:

its 18

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
On a particular game show, there are 8 covered buckets and 2 of them contain a ball.
kobusy [5.1K]

Answer:

0.2143 = 21.43% probability that a contestant wins the game if he/she gets to select 4 of the buckets.

Step-by-step explanation:

The buckets 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)!}

In this question:

8 covered buckets, so N = 8.

4 buckets are selected, so n = 4.

2 contain a ball, which means that k = 2.

Find the probability that a contestant wins the game if he/she gets to select 4 of the buckets.

This is P(X = 2). So

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

P(X = 2) = h(2,8,4,2) = \frac{C_{2,2}*C_{6,2}}{C_{8,2}} = 0.2143

0.2143 = 21.43% probability that a contestant wins the game if he/she gets to select 4 of the buckets.

7 0
2 years ago
Could I have help with this question
skad [1K]
See, pls, this:
If ∠y=∠CBD, then in
ΔABX: ∠A=40°; ∠X=90° ⇒ ∠ B=180-(40+90)=50°.
∠B of ΔABX=∠CBD=∠y=50°.
Answer: 50°.
7 0
3 years ago
What is the answer for b, and why?
kkurt [141]
I think it will be 125
7 0
2 years ago
About how much would it cost to buy 4cd/mp3 players and 3 mp3 players
Mumz [18]
Average price of a CD/ mp3 player is : $ 150

Meanwhile , average price of an mp3 player is : $50

To buy 4 cd/mp3 player, we need $ 150 x 4 = $ 600
To but an mp3 player, we need $50 x 3      = $ 150 

The total is  $ 750

Hope this helps
5 0
3 years ago
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