Answer:
5 students.
Step-by-step explanation:
We have been given that there are 440 students at Thomas Paine high school enrolled in U.S. history. On the April report card, the students’ grades are approximately normally distributed with a mean of 79 and a standard deviation of 7. Students who earn a grade less than or equal to 62.9 must attend summer school.
To find the number of students who must attend summer camp let us find x-score for our given sample score 62.9.
, where,
= Sample score,
= Mean,
= Standard deviation.
Upon substituting our given values in z-score formula we will get,
Now we will use the normal distribution table to find .
Since the probability of a student getting grade less than 62.9 is 0.01072, so we will multiply 0.01072 by the 440 to get the number of students, who must attend summer school for history.
Therefore, 5 students must attend summer school for U.S. history.
Answer:
-1/5
Step-by-step explanation:
I couldn't tell whether or not your question was asking for either the slope intercept form or just the slope.
Your answer would be: y = -1/5x + 3 [if your question is asking for the slope intercept form]
OR
Your answer would be: -1/5 [if your question is asking for just the slope]
Answer:
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
The first function is correct
Step-by-step explanation:
Given f(2) =9 and given functions are f(x) = 2x+5 and f(x) =4x+5
The fsecond function is not satisfies f(2)=9 because
f(x) = 4x+5
f(2) = 4(2)+5 = 13≠9
f(x) = 2x+5
f(2) = 2(2)+5=9
therefore first function is satifies
f(x) = 2x+5
f(3) = 2(3) +5 = 6+5 =11
There fore f(3) =11
67.142 rounded to the nearest ones is 67 cause the .1 is not .5 or greater.
The third option is the correct one