3 years ago

Explain how to use a number line to show that opposite quantities combine to make 0

1 answer:

5 0

the answer is a negative and positive can make it to 0 by adding

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mezya [45]

Answer: C. 30.47

Step-by-step explanation:

The mean of discrete random variable i.e. the expected value of X is given by :-

$E(X)=\sum^{i=n}_{i=1} X_iP(X_i)$

Now by using the given table, the expected value of X is given by :-

$\\\\\Rightarrow\ E(X)=23\cdot (0.16)+25\cdot(0.09)+26\cdot(0.18)+31\cdot(0.12)+34\cdot(0.24)+38\cdot(0.21)\\\\\Rightarrow\ E(X)=30.47$

Hence, the mean of discrete random variable= 30.47

6 0

3 years ago

Ne4ueva [31]

Answer: 25a²b⁴c⁶
Hope this helps

5 0

3 years ago

solmaris [256]

Supplementary would be like 6&7 or 2&3 and vertical would be like 6&8 or 7&5

4 0

3 years ago

Mrrafil [7]

The answer is b) (1;1)

7 0

3 years ago

professor190 [17]

Answer:

Step-by-step explanation:

32-19 = 13 that have both

70-57= 13 that have both again from that sample

total number of people that have both : 13 + 13 = 26

11 kids don't have either one, so :

26-11 = 15

8 0

3 years ago