80. Bc a 6:6 ratio is also a 1:1. So half of 160 them would be female.
Answer:
≈ 30.63 cm²
Step-by-step explanation:
The shaded area is calculated by subtracting the area of the inner circle from the area of the outer circle.
outer circle has radius = 8 ÷ 2 = 4 and inner circle has radius = 5 ÷ 2 = 2.5
shaded area = πr₁² - πr₂² (r₁ is outer and r₂ is inner )
A = π (4² - 2.5²)
= π(16 - 6.25) = 9.75π ≈ 30.63 cm²
Answer:
55600
Step-by-step explanation:
5.56*10^4
Answer:
(a-2b) ×(3+x)
Step-by-step explanation:
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