Example: Sasha is trying to convince her mother to change her bedtime on school nights. She gathers
data on the average number of hours of sleep that a random sample of seventh-grade students in her
school get each night. Will Sasha be able to convince her mother to let her go to bet later?
(Note: On school days, Sasha goes to bed at 9:00 pm. She wakes up at 6:30 am. Q1: How long does she
sleep?) =_8hrs 30mins
This is the data that Sasha gathers: The first row is the sleep duration. The second row is the numbers of
people she asks. 1023445231
1 0 2 3 4 4 5 2 3 1
shours | 8h15 8h30 | 8h45 | 9hours | 9h15 | 9h30 | 9h45 | 10hours | 10h15

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

28

step-by-step explanation:

because that's the answer

step-by-step explanation: 2

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4