Answer:
C) 253. 3 cm²
Step-by-step explanation:
1. Sector area formula can be in degrees or radians. I will use degrees because we are given 240 degrees as a unit.
2. SA=
times
where x is the degrees of the sector
3. 240/360 times 3.14(11)²
4. 0.66666667 times 379.94
5. approximately 253. 3 cm²
6. 150 degrees
7. 70 degrees
8. 100 degrees
Answer:
-0.64
Step-by-step explanation:
Answer:
z = 
Step-by-step explanation:
Given z is directly proportional to x and inversely proportional to y then the equation relating them is
z =
← k is the constant of proportionality
To find k use the condition x = 7, y = 7 and z = 2
k =
=
= 2
z =
← equation of proportionality
When x = 10 and y = 12, then
z =
=
= 