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luda_lava [24]
3 years ago
13

Which of the following numerical expressions results in a negative number? (-21) - (-22) (-13) - (-8) 15 - (-7) - 19 (-37) - (-4

5)
Mathematics
1 answer:
Viktor [21]3 years ago
4 0

Answer:

-13 + 8 = -5 (negative number)

Step-by-step explanation:

1.  

(-21) - (-22)

-21 + 22 = 1 (positive number)

2.

(-13) - (-8)

-13 + 8 = -5 (negative number)

3.

15 - (-7) - 19

15 + 7 - 9

22 - 9 = 13 (positive number)

4.

(-37) - (-45)

-37 + 45 = 8 (positive number)

Hope this helps!

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Answer:

Step-by-step explanation:

From the given information,

Considering both cases when p = 0.5 and when p ≠ 0.5

the probability that the gambler will quit an overall winner is:

P = \dfrac{1 - (\dfrac{1-p}{p} )^K}{1- (\dfrac{1-p}{p})^N } \ \ \  is \  p  \neq 0.5  \  and\  K/N = \dfrac{1}{2}

where ;

N.k = n  and k  = m

Hence, the probability changes to:

P = \dfrac{1 -(\dfrac{1-p}{p})^m}{1 -(\dfrac{1-p}{p})^{m+n}} is  p ≠ 0.5   and k/N = \dfrac{m}{m+n}  is P = 0.5

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3 years ago
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4 years ago
Add. Simplify the answer and write it as a mixed number. 1/2+2/3+1/6
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