Two hikers come to a ravine and want to know how wide it is. They set up two similar triangles as shown in the diagram. How far
is it across the ravine?
1 answer:
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Answer:
P(A) = {{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅}
Step-by-step explanation:
➨ Power Set is the set of all subsets.
First, find the subset of A.
{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅
If you aren't sure that you already have written all subsets or not, use the following formula.
➩ where n is the number of element/members.
Our number of members are 3, use the following formula.
Thus, our subsets should be 8.
As we've already gathered all subsets, write the braces all whole subsets.
P(A) = {{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅}
Answer:
Step-by-step explanation:
Rational numbers;
Numbers which can be written in the form of or repeating decimal numbers are the rational numbers.
Examples : 1, 2,
Irrational numbers:
Numbers which can't be written in he form of a fraction or non repeating decimal numbers are the Irrational number.
Example:
From the given numbers,
Rational numbers: , 6.25, 0.01045,
, 0.424242....
Irrational numbers: