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3 years ago

BRAINLIEST AND 100 POINTS

Mathematics

1 answer:

const2013 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

2(3j + 4 + 9j) = 56

24j + 8 = 56

2(12j + 4) = 56

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James has 6 stamps in his stamp collection. Roy has 12 stamps in his stamp collection. James adds 2 stamps to his stamp collecti

Stolb23 [73]

Answer:

Step-by-step explanation:

Using process of elimination we know that it cannot be a,b or c because after you add the 2 new stamps james collected the ratio is 8:12 which cannot be 1:2 because 8 is not half, can't be B because 8 is less than 12, Also cannot be C because 8 is less than 12

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3 years ago

What is the domain of the following relation?

e-lub [12.9K]

The answer is a, because I need more

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3 years ago

Lacy wants to paint her bedroom walls she has to cover 1,162.5 ft.² about how many gallons of paint will she need

Lunna [17]

I don't know how far the gallon of paint goes on the walls. So I would figure out how far the gallon of paint goes then divide it by 1,162.5 ft.2

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3 years ago

Suppose an airline accepted 12 reservations for a commuter plane with 10seats. They know that 7 reservations went to regular com

kvv77 [185]

Answer:

<h2>See the explanation.</h2>

Step-by-step explanation:

(a)

7 persons will show up for sure, hence there is not any kind of probability here.

The other 5 persons have 50% chance to show up.

The flight will be overbooked, if either 4 will come or 5 will come.

From the total 5 persons, 4 can be chosen in $^5C_4 = 5$ ways.

The probability that any four among the 5 will come is $5\times(\frac{50}{100} )^{5} = 5\times(\frac{1}{2} )^{5} = \frac{5}{32}$ .

The probability that all of the 5 passengers will come is $\frac{1}{32}$ .

Hence, the required probability is $\frac{5}{32} + \frac{1}{32} = \frac{6}{32} = \frac{3}{16}$ .

(b)

The probability that there will be exactly 10 passengers on the flight is $^5C_3\times (\frac{1}{2} )^5 = \frac{20}{2} \times\frac{1}{32} = \frac{10}{32} = \frac{5}{16}$ .

The probability that there will be no empty seats in the plane is $\frac{3}{16} + \frac{5}{16} = \frac{1}{2}$ .

Hence, probability of having empty seats is $1 - \frac{1}{2} = \frac{1}{2}$ .

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3 years ago

Mrs.Isoceles has graded 20% of her 150 students papers how many papers does she still need to grade

Daniel [21]

The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)

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3 years ago

Read 2 more answers