Answer:
i am not sure about this answer but i got r^2+10r+25
Answer:
Check the explanation
Step-by-step explanation:
Let
be the indicator random variable that takes the value 1 if the ith coin is the first coin in a sequence of 19 consecutive heads.
For any sequence of length 19, the starting coin can be from toss i ,
such that i is between 1 and n - 19+1
Thus the number of such sequences is
Kindly check the attached image below for the step by step explanation to the question above.
The exponent of the power is 11 in scientific notation.
<h3>Given </h3>
The numbers are;
The product of (9. 1 × 10^9)(7. 5 × 10^2)
<h3>What is scientific notation?</h3>
Scientific notation is a method of expressing numbers in terms of a decimal number between 1 and 10, but not 10 itself multiplied by a power of 10.
To find the product of the given numbers follows all the steps given below.
The product of number is;

Hence, the exponent of the power is 11 in scientific notation.
To know more about Scientific notation click the link given below.
brainly.com/question/4964086
Answer:
i think it might be C
Step-by-step explanation:
very sorry if it's wrong
X-(x+4)=-4
X-x-4=-4
-4=-4
All real numbers