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
I think to be a function is when you have to groups of something or if it's an number it can be an even number or an odd number you just have to find out what it is.
Answer:
12.449899598
Step-by-step explanation:
You would use pythagoras thereom.
C^2=A^2+B^2
The hypotenuse is C (which is the longest side of the triangle - 18).
18×18=13×13+B^2
324=169+B^2
324-169=B^2
155=B^2
Square root B to get B on it's own which would be 12.449899598.
Answer:
Those ratios are not equivalent
Step-by-step explanation:
3:4 is not the same as 4:3 because 3:4 means 3 out of 4 but 4:3 means 4 out of 3 which means it is more than one while 3:4 is less than one