Answer:
-49
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Answer:
The answer is A
Step-by-step explanation: In B they try to trick you they say that 15 is grater than 30 and c and d are just dumb answers.
Pretty sure the answer is A
<u><em>Question 9:</em></u>
Simplify what is in the parenthesis
Multiply 20 to 5
Divide 50 to 100
<u><em>*(Answer)*=</em></u>
<u><em>Question 10:</em></u>
÷ 
Simplify what is in the parenthesis
Divide 6 to 18
Add 5 to 3
<u><em>*(Answer)*=</em></u> 8
Hope this helps
User who answered: <u><em>BangtanBoyScouts</em></u>
The expected value of the sample mean of the values obtained in these 300 tosses is 3.5
Given :
A fair six sided die is tossed 300 times
We have to find the expected value of the sample mean of the values obtained in these 300 tosses.
A dice have six sides:
In a fair dice every side has equal chance of occurrence,
Now the probability of presence of each side = 1/6
Now the expected value of the sample mean of the values obtained in these 300 tosses is given by:
E(x) = Σx P(x =x)
= 1*1/6 + 2*1/6 + 3*1/6 + 4*1/6 + 5*1/6 + 6*1/6
= 1/6 + 2/6 + 3/6 + 4/6 + 5/6 + 6/6
= 1/6 (1+2+3+4+5+6)
= 1/6 (21)
= 21/6
E(x) = 3.5
Hence, the expected value of the sample mean of the values obtained in these 300 tosses is 3.5
To know more about sample mean check the below link:
brainly.com/question/29739571
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