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wlad13 [49]
3 years ago
7

Assume that different groups of couples use a particular method of gender selection and each couple gives birth to one baby. Thi

s method is designed to increase the likelihood that each baby will be a​ girl, but assume that the method has no​ effect, so the probability of a girl is 0.5. Assume that the groups consist of 40 couples. Complete parts​ (a) through​ (c) below. a. Find the mean and the standard deviation for the numbers of girls in groups of 40 births. The value of the mean is μ
Mathematics
1 answer:
yulyashka [42]3 years ago
6 0
40 because of 0.5 births are gone 40 are coming u. Each time which is the correct
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Andrew wants 1/4 of a pizza Brice wants 2/9 and Collins wants 5/12 .How many slices would the pizza need to be cut into?
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The answer is 36. because 12x3=36, 9x4=36, and 4x9=36, so it is the least common denominator
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3 years ago
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A partial proof was constructed given that MNOP is a parallelogram.
Yanka [14]
A diagram of parallelogram MNOP is attached below

We have side MN || side OP and side MP || NO

Using the rule of angles in parallel lines, ∠M and ∠P are supplementary as well as ∠M and ∠N.

Since ∠M+∠P = 180° and ∠M+∠N=180°, we can conclude that ∠P and ∠N are of equal size. 

∠N and ∠O are supplementary by the rules of angles in parallel lines
∠O and ∠P are supplementary by the rules of angles in parallel lines

∠N+∠O=180° and ∠O+∠P=180°

∠N and ∠P are of equal size

we deduce further that ∠M and ∠O are of equal size

Hence, the correct statement to complete the proof is

<span>∠M ≅ ∠O; ∠N ≅ ∠P

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4 0
4 years ago
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PLEASE HELP PLEASE! BRAINLIESTTTTT​
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Answer:

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Step-by-step explanation:

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3 years ago
What are the factors of the expression:<br><br> (y - 2)(x + 3)
timofeeve [1]

Answer:

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Step-by-step explanation:

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3 years ago
Determine the values of n and m so that the following system have infinite number of solutions
cupoosta [38]

Answer:

n = 3

m = -1/2

Step-by-step explanation:

Multiply the second equation by 4

4(n - 2)x + y = 4(n + m)          Y is now correct.

4(n - 2) = 4                              Remove the brackets    

4n - 8 = 4                                Add 8 to both sides

4n = 8 + 4                               Combine

4n = 12                                    Divide by 4

n = 3                                        x is now correct

4(n - 2) = 4

4(3 -2) = 4

4 = 4

Now you have to worry about m

4(n + m) = 10

n = 3

4(3 + m) = 10                               Divide by 4

m + 3 = 10/4

m + 3 = 2.5                                 Subtract 3 from both sides.

m = 2.5 - 3

m = - 1/2  

6 0
3 years ago
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