Step-by-step explanation:
Use the following information to answer the next 14 exercises: The mean age for all Foothill College students for a recent Fall term was 33.2. The population standard deviation has been pretty consistent at 15. Suppose that twenty-five Winter students were randomly selected. The mean age for the sample was 30.4. We are interested in the true mean age for Winter Foothill College students. Let X = the age of a Winter Foothill College student. n=
Answer:
x = 9.1
Step-by-step explanation:
x^2 + 16^2 = 18.4^2
x^2 + 256 = 338.56
x^2 = 82.56
x = 9.1
Answer:
36
Step-by-step explanation:
it is given that there are total of 80 students
in German language there are 25 students
in French language there are 15 students
13 studying Spanish language
in German and French language there are 3 students
in French and Spanish language there are 4 students
in German and Spanish language there are 2 students
3 are studying all three languages
from the given bellow ven diagram
it is clear that the number of students that are not studying any languages are =80- (20+3+8+4+2+7)=36
Answer:
xy+y2+x+3y+2
Step-by-step explanation:
Answer:
Step-by-step explanation:
The vertex is at the turning point. According to the graph, that point is (-2,3).
The axis of symmetry passes through the vertex: x = -2
