C. Because complementary angles are two angles whose sum equals 90 degrees so do 90-40=50 then 50x2= 100
14a^2bc^4/21abc^6 = 2a/3b^2
Answer:
(2,2)
Step-by-step explanation:
The new pool is 18.84 feet larger in circumference than the old one.
<u>Explanation:</u>
Given:
Circumference of the pool = 47.1 feet
Diameter of the new pool, d = 21 feet
radius, r = 21/2 feet
Circumference of the new pool = ?
We know:
Circumference = 2πr
where,
r is the radius
On substituting the value:
C = 
C = 65.94 feet
The difference in circumference of the two pools = 65.94 - 47.1 feet
= 18.84 feet
Therefore, the new pool is 18.84 feet larger in circumference than the old one.
Answer:
40/7 = 5 5/7
Step-by-step explanation: