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lianna [129]
3 years ago
10

Please i don't understand set theory in mathematics

Mathematics
1 answer:
nordsb [41]3 years ago
6 0

Set theory is the mathematical theory of well-determined collections, called sets, of objects that are called members, or elements, of the set. ... The axioms of set theory imply the existence of a set-theoretic universe so rich that all mathematical objects can be construed as sets

For example, if A = {1, 2, 3} and B = {1, 2, 3, 4, 5} then A Í B (Í means is a subset of). If A = {1, 2, 4, 8}, then n(A) = 4. This is because n(A) means the number of members in set A. The universal set is the set of all sets.

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What is 1/8 - 7/8 ? ( its a fraction)
kap26 [50]

Answer:

1/8-7/8= -3/4

Step-by-step explanation:

1/8-7/8 is just like 7/8-1/8 but is the opposite

7/8-1/8=6/8 or 3/4

1/8+6/8=7/8

1/8-1/8=0

0-6/8= -6/8 or -3/4

4 0
3 years ago
Find the midpoint (8, -6) (6,5)​
andrey2020 [161]
I think it’s (7, -0.5)
7 0
2 years ago
On a piece of paper, graph f(x) = 4 x (0.5)^x
tangare [24]

The complete question is

"On a piece of paper, graph f(x) = 4. (0.5)^x Then determine which answer choice matches the graph you drew."

The given function is an exponential function. The graph of option C is the correct answer.

<h3>What are exponential functions?</h3>

When the expression of function is such that it involves the input to be present as an exponent (power) of some constant, then such function is called exponential function.

There usual form is specified below. They are written in several such equivalent forms.

For example, y^x

, where a is a constant is an exponential function.

The function is given as

f(x) = 4. (0.5)^x

AS we can see that the given function is an exponential function.

Thus, the graph of option C is the correct answer.

Learn more about exponential here:

brainly.com/question/2193820

#SPJ1

6 0
2 years ago
A box have 5 beads of the same size, but all are different colors. Tina draws a bead randomly from the box, notes its color, the
Mila [183]
Since Tina replaces the beads after each pick:

P(R,G,R)=(1/5)(1/5)(1/5)=1/125
7 0
3 years ago
A portrait without its frame has a height 2.5 times its width, w, in inches. Its frame is 3 in. wide all
Greeley [361]

Answer:

2 inches

Step-by-step explanation:

it is ,2inches because they are joining

4 0
2 years ago
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