Select the expression that is not equivalent to -(8 + 2)
- 4
1. -8 -2
- 4
2. 8-2
-4
3. -8 -2
-4
4. 8+2
4

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Ответ:

rcherala

07.01.2020

Mathematics

$\dfrac{1}{2}$

Step-by-step explanation:

We know that on a standard number cube, there are total 6 outcomes.

The number written on a standard number cube = 1,2,3,4,5,6

Prime numbers = 2,3,5

Now, the theoretical probability of rolling a prime number on a standard number cube will be :_

$\dfrac{\text{Number of primes}}{\text{Total numbers}}\\\\=\dfrac{3}{6}=\dfrac{1}{2}$

Hence, the theoretical probability of rolling a prime number on a standard number cube = $\dfrac{1}{2}$

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Select the expression that is not equivalent to -(8 + 2) - 4 1. -8 -2 - 4 2. 8-2 -4 3. -8 -2 -4 4. 8+2 4