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BabaBlast [244]
3 years ago
9

Find the measure of line KM. A. 14 B. 9 C. 12 D. 10

Mathematics
1 answer:
HACTEHA [7]3 years ago
6 0

\\ \sf\longmapsto \dfrac{3}{x-4}=\dfrac{6}{x-5}

\\ \sf\longmapsto 3(x-5)=6(x-4)

\\ \sf\longmapsto 3x-15=6x-24

\\ \sf\longmapsto 3x-6x=-24+15

\\ \sf\longmapsto -3x=-9

\\ \sf\longmapsto x=\dfrac{-9}{-3}

\\ \sf\longmapsto x=3

\\ \sf\longmapsto KM=3+6=9

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We know scale factor = (image)/(preimage), so the scale factor is 32/4 = 8

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3 years ago
Students are doing an experiment: that two fair dice are tossed, and all the outcomes are recorded.Then,an event is described as
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1.The random variable X can take any value from( 2,- ----,12) in the event of the sample space.

2.The sample space S = [(1, 1), (1, 2),(2, 1), (1, 3),  (2, 2),(3, 1),  (1, 4),(2, 3),(3, 2),(4, 1), (1, 5),(2, 4), (3, 3),(4, 2),(5, 1),(1, 6),  (2, 5),(3, 4),(4, 3),(5, 2), (6, 1),   (2, 6),(3, 5),   (4, 4), (5, 3), (6, 2),(3, 6), (4, 5),  (5, 4), (6, 3),(4, 6) (5, 5), (6, 4),(5,6),  (6,5),(6,6)]

3. The probability of getting a 4 =   1/12

4. The probability of getting a 12 = 1/36

Step-by-step explanation:

There are 36 outcomes in all and the event shows the possible numbers obtained after the sum .

The event will be E= [ 2,3,4,5,6,7,8,9,10,11,12]

The random variable X can take any value from( 2,- ----,12) in the event of the sample space.

The sample space S = [(1, 1), (1, 2),(2, 1), (1, 3),  (2, 2),(3, 1),  (1, 4),(2, 3),(3, 2),(4, 1), (1, 5),(2, 4), (3, 3),(4, 2),(5, 1),(1, 6),  (2, 5),(3, 4),(4, 3),(5, 2), (6, 1),   (2, 6),(3, 5),   (4, 4), (5, 3), (6, 2),(3, 6), (4, 5),  (5, 4), (6, 3),(4, 6) (5, 5), (6, 4),(5,6),  (6,5),(6,6)]

that is it has all the possible outcomes of both the dice.

The probability of getting a 4= Number of fav outcome/ no of possible outcomes=  3/ 36= 1/12

The probability of getting a 12= Number of fav outcome/ no of possible outcomes=1/36

6 0
3 years ago
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