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RSB [31]
3 years ago
13

How many lines of symmetry does a arrow have

Mathematics
2 answers:
cricket20 [7]3 years ago
8 0
An arrow has exactly one line of symmetry
aivan3 [116]3 years ago
5 0
An arrow has simply one line of symmetry :)
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The Wikipedia article on the length of dictionaries suggests there are 171,476 unique words in the English language. How many un
katrin2010 [14]

Answer:

806 million years

Step-by-step explanation:

From the information given:

Firstly, we need to determine the no. of ways we can choose n many words in the dictionary & array them in (^{171476}_{n}) * n! ways.

Thus, the no. of unique books possible of length till K is:

\sum \limits^k _{n=0} ( ^{171476}_{n}) * n! \\ \\ = \sum \limits ^k_{n=0} \dfrac{171476!}{(171476-n)!}

where K = 6, we have the value to be:

= 25420530373932821216635722990977

Thus, the time required to write all possible texts of 6 is:

=  (25420530373932821216635722990977)/10⁶

≅ 806 million years.

8 0
3 years ago
Do variables that have a negative correlation move in opposite directions
Marianna [84]
Yes, variables that have a negative correlation move in opposite directions
6 0
3 years ago
What are three things that i can find in a kitchen that i can measure the height of with inches ?
Tamiku [17]
1.) Height of a coffee cup
2.) Kitchen tiles
3.) Height of a microwave
7 0
4 years ago
Math. solving the problem.
inna [77]
Squ((20a^6)(b^3))
2(a^3)(b)squ(b)
8 0
4 years ago
I need help with 15.) 17.) and 19.) I have attached the answers I just need help with how to solve them
SOVA2 [1]

Answer:

Step-by-step explanation:

They are all solved kind of the same way. If the vertex of the angle is outside of the circle, subtract the intercepted arcs and divide by 2

for 15) one arc is marked but you can figure out the other arc because there are 360 degrees in a circle  360 - 102 = 258. So the two arcs are 102 degrees and 258 degrees.

some of the problems you can set up the equation and solve.

17) 63 = {(360-x) - x} /2     multiply by 2

126 = {(360-x) - x}     combine like terms

126 = 360 - 2x           subtract 360

-234 = -2x                   divide by -2

117 = x

? = 117 degrees

good luck

3 0
3 years ago
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