Answer:
There is a 52% probability that she will get it right.
Step-by-step explanation:
We have these following probabilities:
A 40% probability that the student knows the answer to a question.
A 60% probability that the student does not know the answer to a question.
If the student does not know the answer to a question, a 20% probability of getting the question right guessing.
If we choose a question at random from the exam, what is the probability that she will get it right?
40% probability that she knows the answer
60% that she has to guess, when there is a 20% probability of getting it right. So
There is a 52% probability that she will get it right.
If im not mistake i think 1/2 is 0.5 but im not sure about the other one
Answer:
Interval positive and negative
The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. ... y-values that are on the x-axis are neither positive nor negative.
Step-by-step explanation:
Answer:
53 in.
Step-by-step explanation:
to find the area u do 8 times 6 and 1/2 2(5)
triangle = 1/2bh
rectangle = bh
hope this helps
Answer:
The equation is
2.7x - 5.4
Step-by-step explanation:
Gas is priced at $2.70 per gallon. My gas tank has 2 gallons currently in the tank. Write an equation to how much
the money I will spend to fill up my tank.
Let the total gallons that would fill your tank = x
The tank currently has 2 gallons
A gallon =>$2.70
Therefore, our equation is
=(x - 2) × 2.70
= 2.7x - 5.4
