Answer:
Step-by-step explanation:
Given,
The number of miles she walks every day =
∵ 1 week = 7 days,
⇒ 1 day = week,
Thus,
The number of miles she walks week=
⇒ The number of miles she walks in a week =
I can help with the piecewise function
I don't think I can correctly format it very well on my computer so I can give you the points if you can fill it in correctly.
f(x)=4 if x≤-2
f(x)= -x if -2<x<2
f(x)= -3 if x≥2
Hopefully this helps. I don't think I can help with problem #1. Sorry
Answer:
D trust me look
Step-by-step explanation:
Hope This Helped
Answer:
y = − (7 /2) x + 60 equation could represent the line of best fit for the temperatures, in degrees Fahrenheit, based on the altitudes, in thousands of feet
Step-by-step explanation:
Given:
A plot for temperature and altitude
(Refer the attachment) .......FOR GRAPH
To Find:
Correct relationship between them
Solution:
By using given relationship as we can conclude.
1)y=-5x+70:
Put y=0 then
5x=70
x=70/5
x=14
This value dont corresponds when y=0 in graph
2) y=-10x+70
put y=0 then
10x=70
x=7
This value dont corresponds when y=0 in graph very less than original value.
3)y=-(7/2)x+60
put y=0 then
(7/2)x=60
7x=120
x=120/7
x=17.14
This value corresponds when y=0 in graph
4)y=-(9/2)x+60
Put y=0 then
(9/2)x=60
9x=120
x=120/9
x=13.33
This value dont corresponds when y=0 in graph which much less than original value.