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Ray Of Light [21]
3 years ago
6

Which term best describes a proof in which you assume the opposite of what you want to prove? A. Proof by syllogism B. Proof by

contradiction C. Proof by contrapositive D. Proof by converse
Mathematics
2 answers:
Vilka [71]3 years ago
8 0
That is Proof by Contradiction.
The famous one is  the proof of the square root of 2 is irrational . First done by Euclid
Fed [463]3 years ago
8 0

Answer: B. Proof by contradiction

Step-by-step explanation:

  • A proof by contradiction states the truth of a given statement by the assuming that it is false and following by finding a conclusion that is contradictory to the given proposition that is proven to be true.

Hence, the term best describes a proof in which we assume the opposite of what we want to prove is "Proof by contradiction ".

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Lisa is 53 3 4 inches tall. Joey is 1 1 2 inches shorter than Lisa and Jane is 1 1 5 inches shorter than Joey. How tall is Jane?
tester [92]

Answer: Jane's height =  51\dfrac{1}{20}\text{ inches}

Step-by-step explanation:

Given: Lisa's height = 53\dfrac34\text{ inches}=\dfrac{4\times53+3}{4}\text{ inches}

=\dfrac{215}{4}\text{ inches}

Joey's height = \dfrac{215}4-1\dfrac12 inches

=\dfrac{215}4-\dfrac32\\\\=\dfrac{215-6}{4}\\\\=\dfrac{209}{4}\text{ inches}

Jane's height = \dfrac{209}{4}-1\dfrac15 inches

=\dfrac{209}{4}-\dfrac{6}{5}\\\\=\dfrac{209\times5-6\times4}{20}\\\\=\dfrac{1045-24}{20}\\\\=\dfrac{1021}{20}\\\\=51\dfrac{1}{20}\text{ inches}

Hence, Jane's height = 51\dfrac{1}{20}\text{ inches}

3 0
2 years ago
Find the least common multiple of 8b^2 and 5n^3
muminat

Answer:

The lcm is; 40b^2n^3

Step-by-step explanation:

There are no common factors between the two expressions and as such the lcm will be found by obtaining the product of he two;

8b^2*5n^3 = 40b^2n^3

5 0
3 years ago
Read 2 more answers
A garden table and a bench cost 1048 combined. The garden table costs 98 more then the bench. What is the cost of the bench?
kakasveta [241]
Easy. 1048 divided by 2 is 524. now all you do is subtract 98 from 524 (426) so the garden table costs 622 and the bench costs 426.
6 0
2 years ago
Z1= 3 - 5<br> Z2 = 11 - 111<br> Find the distance between z1 and z2
kotykmax [81]

Answer: 102

Step-by-step explanation:

7 0
3 years ago
Which relationship describes angles 1 and 2?
AVprozaik [17]
The correct answer would be :
<span>complementary angles

adjacent angles.
(I took the test...)</span>
3 0
3 years ago
Read 2 more answers
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