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natali 33 [55]
3 years ago
15

Please help me please ASAP ASAP

Mathematics
1 answer:
Anna007 [38]3 years ago
5 0

Answer:

my answer for 32 is definitely D

my answer for 33 is definitely C

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One of two small classrooms is chosen at random with equally likely probability, and then a student is chosen at random from the
bixtya [17]

Answer:

0.1875

Step-by-step explanation:

Let A be the event that  class two has been chosen . So the probability of A would be P (A) = 1/2= 0.5

Now class two has 9 girls out of total 24 students . So the probability of chosing the girl would be= P (B=) 9/24= 0.375

So the probability that Classroom #2 was chosen at random, given that a girl was chosen is given by = P(A) . P(B)= 0.5 * 0.375= 0.1875

Another way of finding the probability that Classroom #2 was chosen at random, given that a girl was chosen is by drawing a tree diagram.

P (1/2) Class 1 ------------------------5 boys

                      -------------------------11 girls  (11/16)

P (1/2)  Class 2 -------------------------15 boys

                     -----------------------9 girls  P (9/24)   Class 2 was chosen (0.5) *9/24

8 0
3 years ago
(05.02)
torisob [31]

Answer:

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6 0
3 years ago
Given W(2-3). X(-4.9), Y(5. y), and Z(-1, 1), find the value of y so that so that segment WX is perpendicular to segment YZ.
DanielleElmas [232]

Answer:

4

Step-by-step explanation:

For WX to be perpendicular to YZ, then the product of their slope must be -1

For slope of WX

W(2-3) and X(-4.9),

Mwx = 9-(-3)/-4-2

Mwx = 12/-6

Mwx = -2

For slope of Y(5. y), and Z(-1, 1),

Myz = 1-y/-1-5

Myz = 1-y/-6

Since Mwx•Myz = -1

-2•(1-y/-6) = -1

1-y/3 = -1

1-y = -3

-y = -3-1

-y = -4

y = 4

Hence the value of y is 4

7 0
3 years ago
Please can someone help me on this problem
Annette [7]

9.8/.269

multiply the top and bottom by 1000

9800/269

36.43122677

round to the nearest hundredth

we look at the 3 the next digit is 1 so we leave it alone

36.43

6 0
3 years ago
Read 2 more answers
Jeff started with 20 cookies and then makes some
Alja [10]

Answer:

8 cookies

Step-by-step explanation:

76-20=56 and 56 divided by 7=8

6 0
3 years ago
Read 2 more answers
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