Answer:
36
Step-by-step explanation:
Work out the terms inside the parenthesis from x = 2 to x = 5. Hint: there will be 4 terms.
x = 2 ---> 0
x = 3 ---> 1
x = 4 ---> 2
x = 5 ---> 3
The sigma symbol means that you have to add them all up so the sum is 6. Therefore,
(6)^2 = 36
Answer:
Jamaal's hourly rate is: 9.5
Tyson's hourly rate is: 8.9
The difference between their hourly rates is:
0.6/hour. Jamaal makes more money per hour.
Step-by-step explanation:
Tyson's rate is already given P = 8.9h
Jamaal's rate is 38/4 = 9.5
Answer:
If the exam has 10 questions, the probability will be 0,0078
Step-by-step explanation:
To get the probability equally likely of having the question right we use the following formula
P=# of possibilities that meet the condition / #of equally likely possibilities.
Each question has the following probability of being right.
P=1/2
In this case, we considered 10 questions as the total exam. So, we have to get 7 questions right to pass the exam (70%).
To get the probability of several independent events occurring together, we just multiply the probability of the all the events.
P(passing the exam)=1/2*1/2*1/2*1/2*1/2*1/2*1/2=0,0078
This is what I got when I did the work out on paper