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2 years ago

Where were Roman numerals made

Mathematics

2 answers:

Tems11 [23]2 years ago

8 0

Ancient Rome & Europe

LenaWriter [7]2 years ago

3 0

The Roman Numeral, as far as we know, was the only written numbering system used in Ancient Rome andEurope until about 900 AD, when the Arabic Numbering System, which was originated by the Hindu's, came into use.

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Prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A

astraxan [27]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

$\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)}$ ← expand numerator/denominator using FOIL

= $\frac{1-sin^2A}{1-cos^2A}$

= $\frac{1-(1-cos^2A)}{1-(1-sin^2A)}$

= $\frac{1-1+cos^2A}{1-1+sin^2A}$

= $\frac{cos^2A}{sin^2A}$

= cot²A = right side , thus proven

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2 years ago

Calculate 11010-1101 in base 2

stiv31 [10]

Answer:

1101 base 2

Step-by-step explanation:

you first take the larger number up the the lower number down

11010 -1101
when dividing if it's zero you borrow one from the number on the left hand side
since it's in base 2 the number you borrow would be 2 then u subtract
I hoped it helped u

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2 years ago

What is the 6th term of the geometric sequence shown?

solniwko [45]

Answer:

Step-by-step explanation:

subtract 20 from 40 it's Zero

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2 years ago

Why is determining food cost percentage important?

Studentka2010 [4]

Answer:

Food cost determines a restaurant's profitability.

Step-by-step explanation:

If you have any questions feel free to ask in the comments - Mark

Also when you have the chance please mark me brainliest.

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2 years ago

Read 2 more answers

17. Find the value of the function h(x) = 7x - 11 given that = 8m +3

Naya [18.7K]

Answer:

the answer is d

Step-by-step explanation:

thank you please follow me

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2 years ago