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Nastasia [14]
3 years ago
13

I need help with this please​

Mathematics
1 answer:
Shalnov [3]3 years ago
7 0
I think that the answer is 10 sorry if l be wrong
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What are two contributions to math that Leonardo Fibonacci made
jekas [21]
Fibonacci is famous for his contributions to number theory.

In his book, Liber abaci he introduce the Hindu-Arabic place-valued decimal systems and the use of Arabic Numerals  into Europe.He introduced the bar we use in fractions, previous to this, the numerator has quotations around it. The square root notation is also is Fibonacci method.

7 0
3 years ago
a business want to increase its number of employees by 65% to 20,460. How many employees does the company currently have?
Crazy boy [7]

Answer:

12,400

Step-by-step explanation:

Let the current employees be x

65% increase in number = 0.65x

If the total number of employees after the increase is 20,460, then;

x + 0.65x = 20,460

1.65x = 20,460

x = 20,460/1.65

x = 12,400

Hence the current number of employees is 12,400

5 0
3 years ago
supposed the first friday of a new year is the fourth day of that year .will the year have 35 friday regardless of whether or no
inysia [295]
No there is 53 Friday's in a year
6 0
3 years ago
2. What is the total surface area of the figure below 5.2 cm 6 cm 9 cm 6 cm 6 cm​
babunello [35]

Answer:

<u>193.2 cm²</u>

Step-by-step explanation:

Area = 5.2 x 6 + 3 x 6 x 9

= 31.2 + 162

= <u>193.2 cm²</u>

5 0
2 years ago
Which tiles should be added to the model below to make zero?
QveST [7]

Answer: is B 6 positive tiles

7 0
3 years ago
Read 2 more answers
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