Answer:
.7pi
Step-by-step explanation:
To convert from degrees to radians, multiply by pi/180
126 * pi/180
.7 pi
The area of the circle by definition is given by:

For f (r) = 154:

Clearing r we have:

For f (r) = 616:

Clearing r we have:
Answer:
a reasonable domain for f (r) is:
7 <r <14
Answer:
100
Step-by-step explanation:
160 * (5/8) = 100
Answer:
42 students
Step-by-step explanation:
Answer:
$4.80
Step-by-step explanation:
Make a proportion
$12 for 2.5 pounds, and $x for 1 pound
12/2.5=x/1
x/1 is equivalent to x
12/2.5=x
Divide
x=4.8
So, one pound of peanuts costs $4.80