Answer:
3
Step-by-step explanation:
20-9=11
11-8=3
3 is the final answer
To look for the area of a sector of a circle, the following formula is used:
Area = ( n / 360 ) * pi * r^2
Where: n = measure of arc in degrees
pi = 3.1416
r = radius
Since we are already given all of the needed parts of the formula, direct substitution is done, as shown below:
Area = ( n / 360 <span>) * pi * r^2
</span>Area = ( 45 / 360 ) *3.1416 * (8)^2
Area = 25.133 in^2
Therefore, the area of the sector of the circle is 25.133 sq. in.
Answer:
- C = 0.97m
- $1164 for 1200 miles
- 845 miles for $820
Step-by-step explanation:
Given a car's cost of operation is $485 for 500 miles, you want an equation relating cost for m miles, and solutions to that equation for 1200 miles, and for a cost of $820.
<h3>Cost per mile</h3>
The cost per mile is found by dividing the cost by the associated number of miles:
$485/(500 mi) = $0.97 /mi
<h3>Equation</h3>
The equation for the cost will show the cost as the cost per mile multiplied by the number of miles:
C = 0.97m . . . . . where C is cost in dollars for m miles driven
<h3>1200 miles</h3>
The cost for driving $1200 miles will be ...
C = 0.97(1200) = $1164
The cost of driving 1200 miles is $1164.
<h3>$820</h3>
The number of miles that can be driven for a cost of $820 is ...
820 = 0.97m
m = 820/0.97 = 845.36
About 845 miles are driven for a cost of $820.
Answer:
25
π
/12 radians
Step-by-step explanation:
To convert degrees to radians, multiply by π
/180
, since a full circle is
360 or 2
π radians.
Cancel the common factor of 15
Factor 15 out of 375
15
(25). π/
180 radians
Factor
15 out of 180
15. 25
⋅
π/
15
⋅
12 radians
Cancel the common factor.
15
⋅
25
⋅
π/
15
⋅
12 radians
Rewrite the expression.
25
⋅
π/
12 radians
Combine
25 and π
/12
25
π
/12 radians
Okay first step is dividing by three on both sides.
1800/3 = 3/3 • N
now you have
600 = N
and you’re done!!! :)