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3 years ago

There’s 2 answer help pls

Mathematics

2 answers:

Lemur [1.5K]3 years ago

3 0

The first one is 84 ounces and the second one is 20 ounces

faust18 [17]3 years ago

3 0

Answer:

A- is 84 ounces because 5 pounds is 80 ounces then you add the 4 ounces

B-so 4 pounds is 64 ounces plus the 2 is 66

soo 84 ounces minus 66 ounces ISSS 18 !

Step-by-step explanation:

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If D< 0, the roots of the quadratic equation will b complex.

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3 years ago

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3 years ago

There are 130 people in a sport centre.

Mashcka [7]

Answer:

Step-by-step explanation:

Using set notation to answer the question. let:

n(U) be the total people in a sport centre =130

n(G) be number of people that use the gym. = 76

n(P) be number of people that use the swimming pool. = 60

n(T) be number of people that use the track = 32

n(G∩P) be number of people that uses the gym and the pool = 23

n(P∩T) be number of people that uses the pool and the track = 8

n(G∩T) be number of people that uses the gym and the track = 320

n(G∩P∩T) be number of people that uses all three facilities = 6

Using the relationship below;

n(U)= n(GUPUT)+n(GUPUT)'

where n(GUPUT)' is the number of people that doesn't use any facility.

Before we can get that, we need to know n(GUPUT) using the formula;

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

n(GUPUT) = 76+60+32-23-8-20+6

n(GUPUT) = 123

n(GUPUT)' = n(U)- n(GUPUT)

n(GUPUT)' = 130 - 123

n(GUPUT)' = 7

This means that 7 person doesn't use any facility.

Probability that a person selected at random doesn't use any facility = n(GUPUT)' /n(U) = 7/130

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3 years ago