4 years ago

Identify the postulate that proves the triangles are congruent.

Mathematics

1 answer:

Schach [20]4 years ago

4 0

In my opinion and as what I learned last year the correct answer is HL.

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A researcher surveyed 80 adults and found that 22 regularly run for exercise and 18 regularly swim for exercise.

Aliun [14]

Whenever the questions asks for the probability and has "or" you have to add the two probabilities. In the same way, "and" implies multiplication. Therefore, the probability that someone swims is:
$\frac{18}{80} = \frac{9}{40}$

Probability that someone runs:
$\frac{22}{80} = \frac{11}{40}$

Thus, if you add them:
$\frac{9}{40} + \frac{11}{40} = \frac{20}{40} = \frac{1}{2}$

So, the probability that someone swims <em>or</em> runs is 1/2 or 50%.

6 0

3 years ago

I need the answer ASAP please

lara [203]

a $\leq$ 7