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4 years ago

Does anyone understand?? Consider the set {2, 1, 3, 4}. How many proper subsets could be formed from this set?

Mathematics

1 answer:

mariarad [96]4 years ago

5 0

If a set contains ‘n’ elements, then the number of proper subsets of the set is 2^n - 1.

In this problem,

n = 4

2^4 - 1 = 16 - 1 = 15 proper subsets

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4 years ago

Find the area of the shaded part. Rectangle CDEF has an area of 24^2.

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3 years ago

Why is looking at cash flow an important step in a good financial plan?

4vir4ik [10]

Answer:

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Step-by-step explanation:

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3 years ago

At another sanctuary, the number of nesting turtles decreased by 10%. This year there were 234 nesting turtles. How many nesting

Alex

Answer:

260 nesting turtles were at this sanctuary last year

Step-by-step explanation:

Given:

The number of nesting turtles decreased = 10%

Number of turtles present in sanctuary this year = 234

To Find:

Number of nesting turtles present at this sanctuary last year= ?

Solution:

Let the number of nesting turtles present at this sanctuary last year be x

Then,

x- 10% of x = Number of turtles present in sanctuary this year

x- 10% of x = 234

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$x- (\frac{x}{10}) = 234$

$\frac{10x-x}{10}=234$

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7 0

3 years ago

Please help me out!!

dybincka [34]

Answer:

I can't really help u with this because I already struggle enough with this kind of math that I don't even learn it any more.

Step-by-step explanation:

But I hope the other person answers the problem for u and know how to do this one.

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3 years ago