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azamat
3 years ago
14

What is 8+5(9+4x)=if x=2

Mathematics
2 answers:
Verdich [7]3 years ago
6 0
Step 1. Simplify 4 * 2 to 8

8+5*(9+8)


Step 2. Simplify 9 + 8 to 17

8+5*17

Step 3. Simplify 5 * 17 to 85

8+85

Step 4. <span>Simplify

</span>93
<span>
Done! Your answer is 93 :)</span>
maria [59]3 years ago
5 0
8+5(9+4x); x=2)
1) 8+5[9+4(2)]
2) 8+5(9+8)
3) 8+5(17)
4) 8+ 85
5) 93
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Please help! 20 points and brainly!!
boyakko [2]

Answer: 7/21 is the answer because 7 * 2 = 14 and 21*2=42

Step-by-step explanation:

3 0
2 years ago
There is a bag filled with 3 blue and 4 red marbles.
tresset_1 [31]

Using the hypergeometric distribution, it is found that there is a 0.4286 = 42.86% probability of getting 2 of the same colour.

The marbles are chosen without replacement, hence the <em>hypergeometric </em>distribution is used to solve this question.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

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

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

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

In this problem:

  • There is a total of 3 + 4 = 7 marbles, hence N = 7.
  • Of those, 3 are blue, hence k = 3.
  • 2 marbles will be taken, hence n = 2.

The probability of getting 2 of the same colour is the sum of P(X = 0), which is both red, with P(X = 2), which is both blue, then:

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

P(X = 0) = h(0,7,2,3) = \frac{C_{3,0}C_{4,2}}{C_{7,2}} = 0.2857

P(X = 2) = h(2,7,2,3) = \frac{C_{3,2}C_{4,0}}{C_{7,2}} = 0.1429

Hence:

p = P(X = 0) + P(X = 2) = 0.2857 + 0.1429 = 0.4286

0.4286 = 42.86% probability of getting 2 of the same colour.

You can learn more about the hypergeometric distribution at brainly.com/question/4818951

3 0
2 years ago
I need help with this question
prisoha [69]

Answer:

100m^2

Step-by-step explanation:

square has equal sides.

To find the area of the square, the formula is:

Area= length times width

So for square ABCD, 10*10=100m^2

8 0
3 years ago
A store is selling 5 cans of tomato sauce for 4.50 what is the unit price
andrew-mc [135]
The unit price is 90 cents per can of tomato sauce.
6 0
2 years ago
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