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3 years ago

What is the difference between a subset and a proper subset?

Mathematics

1 answer:

muminat3 years ago

6 0

Answer:

A subset is when all of the elements in the subset are in the actual set. A proper subset is a subset which the actual set has at least on more element than the proper subset.

Step-by-step explanation:

For example, Set A, {1,2,3} is a subset of B {1,2,3}. But Set C, {1,2} is a proper subset of B. Set {5,8} is a subset of {2,5,8}.

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The population of grand island, nebraska, grew by 600,000 people between 1995 and 2005, one fifth more than the town council ori

IgorLugansk [536]

Answer:

500000 people

Step-by-step explanation:

The population grew by 600,000 which is 120% the earlier prediction by the town council.

Using direct proportion

600,000 -------- 120%

X --------- 100%

X = (600000 × 100) ÷ 120 = 500000

Therefore the earlier prediction by the town council is 500000 people

3 0

3 years ago

What is the coefficient of the term 67xy ? 67 6 6xy 17

Nutka1998 [239]

the coefficient is any real number so in 67xy the coefficient would be 67

5 0

3 years ago

Read 2 more answers

If f(x) = 2x2 + 3x and g(x) = x – 2, what is (f + g)(2)?

goblinko [34]

For this case we have the following functions:
$f(x) = 2x^2 + 3x

g(x) = x - 2$
The first thing we must do is calculate the sum of functions or equivalently:
$(f + g)(x) = f(x) + g(x)
$
We have then:
$(f + g)(x) = (2x^2 + 3x) + (x - 2)
$
To complete the sum, we must add the terms whose exponents are equal.
We have then:
$(f + g)(x) = 2x^2 + (3x + x) - 2

(f + g)(x) = 2x^2 + 4x - 2$
Then, we evaluate the function for x = 2:
$(f + g)(2) = 2(2)^2 + 4(2) - 2
$
Rewriting we have:
$(f + g)(2) = 2(4) + 4(2) - 2

(f + g)(2) = 8 + 8 - 2

(f + g)(2) = 14$
Answer:
$(f + g)(2) = 14
$

4 0

3 years ago

The probability that it rains in London on any particular day is 0.3.

SpyIntel [72]

Answer:

It is 14.45 percent .

Step-by-step explanation:

Explanation:

The first day is independent from the day before. Therefore the first day probability (of rain) is 20 percent.

The second day (depends on the previous day) rainfall probability is 85 percent.

Finally, the third day (it must be rainy to satisfy the total probability) rainfall probability is 85 percent.

The probability of having three consecutive days which are rainy:

P(all rainy)

0.20

0.85

0.1445

or 14.45 percent.

6 0

3 years ago

Read 2 more answers

in 1990 Florida's population was about 1.3 million.Since 1990,the state's population has grown about 1.7% each year. This means

horrorfan [7]

Answer:

Step-by-step explanation: R+8

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3 years ago