11. A student did a survey of teachers' ages
The cumulative frequency curves show information about the ages of the male teachers and
the ages of the female teachers.
100
90
80
70
60
Cumulative
Frequency 50
male teachers
40
30
female teachers
20
10
0
20
30
40
50
60
70
Age in years
(a) Find an estimate for the number of the male teachers older than 50 years of age.

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6