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Rainbow [258]
3 years ago
6

ABC is not an acute triangle what is the first step of indirectly proving this statement

Mathematics
1 answer:
dmitriy555 [2]3 years ago
5 0

Answer:

Assume ΔABC is an acute triangle.

Step-by-step explanation:

Given the triangle ABC.

We have to tell the first step of indirect proving ΔABC is not an acute triangle.

An indirect proof, also known a proof by contradiction. When we use indirect proof method, we assume the opposite of our theory to be true and then by applying our assumed theory we contradict the given statement which proves our supposition is wrong. In other words, we assume our theory is false.

Hence, our first step is to

Assume ΔABC is an acute triangle.

Third option is correct.

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Eva's coin purse contained 10 more dimes than nickels. The total value of the nickels and dimes was $10. How many coins of each
salantis [7]

Answer:

60 nickels

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Step-by-step explanation:

convert $10 to cents

$10 = 1000 pennies

1000 = 5x + 10 (x+10)

1000 = 15x + 100

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x = 60

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check to be sure this adds up to $10

7 0
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Step-by-step explanation:

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3 years ago
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Answer:

(9159 / 7 = 1308.429)

Step-by-step explanation:

Simply multiply the last digit by 2 and then subtract the product from the remaining digits.

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2 years ago
Read 2 more answers
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