4 years ago

Determine whether the conjecture is true or false. Give a counterexample for any false conjecture.

Mathematics

1 answer:

777dan777 [17]4 years ago

7 0

False, a concave polygon can never be regular (all sides and angles must be congruent)

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Step-by-step explanation:

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Read 2 more answers

Each lap Jeffrey needs to run is one tenth of a mile he wants to run threee fifths of a mile how many laps does he need to run

kipiarov [429]

Answer:

6 laps

Step-by-step explanation:

Each lap Jeffrey needs to run is one tenth of a mile he wants to run threee fifths of a mile how many laps does he need to run

One tenth of a mile = 1/0

Three fifths of a mile = 3/5

From the question:

1/10 mile = 1 lap

3/5 mile = x

Cross Multiply

1/10 mile × x = 3/5 mile × 1 lap

x = 3/5 mile × 1 lap/ 1/10 mile

x = 3/5 ÷ 1/10

x = 3/5 × 10/1

x = 6 laps

Therefore, for there fifths of a mile(3/5) he needs to run 6 laps

6 0

3 years ago

Which statement is not true? X squared equals 100 if and only if X equals 10 orX equals -10. If X squared equal 100 then X equal

mamaluj [8]

Answer:

the second statement is not true

Step-by-step explanation:

If x squared equals 100, it doesn't mean necessarily that x is positive ten, since you can get 100 also by squaring the value (-10):

(-10) $(-10)^{2} = (-10) x (-10) = 100$

The second statement is ignoring the possibility of x being a negative ten which also gives 100 as answered when squared.

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3 years ago