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mamaluj [8]
3 years ago
5

Where were Roman numerals made

Mathematics
2 answers:
Tems11 [23]3 years ago
8 0

Ancient Rome & Europe

LenaWriter [7]3 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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Solve each triangle. Round your answers to the nearest tenth
ivolga24 [154]
You have to use the Law of Cosines here, since there's no other way to solve this.  it's not a right triangle, so you can't use the Pythagorean Theorem.  The Law of Cosines will help us find the missing side length then we will have to use the Law of Sines to find another angle.  Then after that we will use the Triangle Angle-Sum theorem to finish it off.  Ready? The Law of Cosines to find side b isb^{2} = a^{2}+ c^{2} -2ac cosB and fill in the info we know, which is everything but the b. b^{2} =(21) ^{2} +(29) ^{2} -2(21)(29)cos109. Doing all that math gives us that side b = 40.9 or 41. Now the Law of Sines to find missing angle A or C.  Let's find A. \frac{sinA}{21} = \frac{sin109}{41}.  That gives us that angle A is 29.  Now use the fact that all triangles add up to 180 to get that angle C is 42.  And you're done!

7 0
3 years ago
11/4 - 2/4 as an improper fraction
tatiyna

Answer:

9/4

Step-by-step explanation:

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4 0
2 years ago
PLEASE HELP ME THIS ASSIGNMENT IS 50 SUMMATIVE POINTS IT COULD REALLY HELP OR HURT OR GRADE DUE IN 10 MIN
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What is the area of the trapezoid?<br><br> Enter your answer in the box.
Oksi-84 [34.3K]

Answer:In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezium in English outside North America, but as a trapezoid in American and Canadian English  

a+b 2h

Step-by-step explanation:

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Read 2 more answers
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Serjik [45]

Answer:

B.

Step-by-step explanation:

Option B is correct - angle ABE is less than 90 degrees, therefore it is acute, and angle DBC is greater than 90 degrees, therefore it is obtuse.

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