2 years ago

5 mins on the clock on correct answers

Mathematics

1 answer:

marusya05 [52]2 years ago

4 0

Answer:

Area is 168

Step-by-step explanation:

(Base x height)

(12x14) = 168

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Your identity says ...

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... = 4³ -3·1·4

... = 64 -12 = 52

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The two numbers are 2±√3, and the sum of their cubes is indeed 52.

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Read 2 more answers

The theoretical probability of choosing Event A is 2

Crazy boy [7]

Answer: $\dfrac{5}{7}$

Step-by-step explanation:

Given

The theoretical probability of choosing an event A is $\dfrac{2}{7}$

The sum of the probability of occuring and non-occuring of an event is always equal to 1.

So, the probability of non choosing Event A is

$\Rightarrow 1-\dfrac{2}{7}\\\\\Rightarrow \dfrac{7-2}{7}\\\\\Rightarrow \dfrac{5}{7}$

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