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ser-zykov [4K]
2 years ago
14

Can someone please help me out and explain

Mathematics
1 answer:
bonufazy [111]2 years ago
4 0

Answer:

option 2

Step-by-step explanation:

please so it

3

4

4

3

5

4

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Let M be the midpoint of LN. If LM = 9 inches what must be the length of LN? (draw a picture if needed!)
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Answer:

LN = 18

Step-by-step explanation:

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3 years ago
There are 135 people in a sport centre. 73 people use the gym. 59 people use the swimming pool. 31 people use the track. 19 peop
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Answer:

Probability that the person doesn't use any facility = 0.0889

Step-by-step explanation:

Total number of people in a sports center = 135

Number of people using gym 'G' = 73

Number of people using swimming pool 'P' = 59

Number of people using track 'T' = 31

Number of people using gym and pool (G∩P) = 19

Number of people using pool and track (P∩T) = 9

Number of people using gym and track (G∩T) = 16

Number of people using all three facilities (G∩P∩T) = 4

Therefore, from the rule of compound probability,

P(GUPUT) = P(G) + P(P) + P(T) - P(G∩P) - P(G∩T) - P(P∩T) + p(G∩P∩T)

We know probability of an event = \frac{\text{Favorable event}}{\text{Total outcomes}}

We will plug in the values of probabilities of each event in the formula.

P(GUPUT) = \frac{73}{135}+\frac{59}{135}+\frac{31}{135}-\frac{19}{135}-\frac{9}{135}-\frac{16}{135}+\frac{4}{135}

                 = \frac{1}{135}(73+59+31-19-9-16+4)

                 = \frac{123}{135}

And probability that a person doesn't use any facility = 1 - P(GUPUT)

= 1 - \frac{123}{135}

= \frac{135-123}{135}

= \frac{12}{135}

= \frac{4}{45} ≈ 0.0889

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Step-by-step explanation:

You can find two kind of expressions in this property:

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a(b+c)=ab+ac

-  Distributive property of multiplication over subtration: When you mulitply a subtration expression by a number. For example:

a(b-c)=ab-ac

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Answer:

Step-by-step explanation:

we have

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You are getting the definition in define
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