What is a two column proof

Mathematics

2 answers:

Oksana_A [137]3 years ago

6 0

Answer: uses a visual representation of the logical flow of steps needed to reach a conclusion.

Step-by-step explanation:

A two column proof uses a visual representation of the logical flow of steps needed to reach a conclusion.

It is arranged into two columns named as "statement" and "reason" columns, where each statement must have valid logical and mathematical reason needed to reach the required conclusion..

The reasons in a two column proof are generally given details, vocabulary, definitions, postulates and previously proved theorems.

Hence, the correct statement is "uses a visual representation of the logical flow of steps needed to reach a conclusion."

ruslelena [56]3 years ago

3 0

A, the first choice. c doesn't say tht its in a logical flow

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olga nikolaevna [1]

The answer is b because are congruent

7 0

3 years ago

Read 2 more answers

Appreciate answers and any help!

Savatey [412]

To find the expected value of the distribution, we multiply each outcome by it's probability. Doing this, we get that the expected value of defects on a skateboard is of $\frac{4}{25}$ .

Outcomes and probabilities:

0 defects, 9/10 probability

1 defect, 1/20 probability

2 defects, 1/25 probability

3 defects, 1/100 probability.

Expected value:

$E(X) = 0\frac{9}{10} + \frac{1}{20} + 2\frac{1}{25} + 3\frac{1}{100} = \frac{1}{20} + \frac{2}{25} + \frac{3}{100} = \frac{5 + 8 + 3}{100} = \frac{16}{100}$