An educational researcher is studying two similar high schools in different states. Suppose that 50% of all 425 students at high school A have taken a college-level course, while 40% of all 525 students from high school B
have taken such a course. The researcher plans on taking separate random samples of 50 students from each
high school to look at the difference (A - B) between the proportions of students who have taken a college-
level course in each sample.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

30 people weigh 160 pounds or more

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.