Correct Answer:Option A. 0.01
Solution:This is a problem of statistics and uses the concept of normal distributions. We need to convert the score of 90 into z-score and then find the desired probability from standard normal distribution table.
Converting 90 to z-score:
Now we are to find the probability of z score being more than 2.33. From the z-table the probability comes out to be 0.01.
Therefore, we can conclude that the probability of class average is greater than 90 is 0.01.
Answer: 147 cm²
Step-by-step explanation:
Since it says to use 3 for pi, and the radius is given to us (7 cm), we will plug in and solve for the area.
A = πr²
A = (3)(7)²
A = 147 cm²
I used the special right triangle rules for a 30-60-90 degree right triangle. The width of the park is 2 miles and the length of the sidewalk is 4 miles.
Answer:
The lateral surface of an object is all of the sides of the object , except/excluding its base and top.
I think I am correct I might sure I read it somewhere
by this explanation I guess you know your answer
have a nice day
#Captainpower