Answer:
40
Step-by-step explanation:
Let the number be y
-1/2 × y = -20
y = -20 ÷ -1/2
y = 20 × 2
y = 40
48 π
Area of Circle =πr∧2
Big Circle Area = π(8)∧2 = 64π
Small Circle Area =π(4)∧2= 16π
Shaded Region = 64π - 16π = 48π
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the twin-pack
sunscreen
x=0, - 9
x^2+9x=0
x(x+9)=0
x=0 or x=-9
The answer should be x ≤ 5
5 units
By Pythagoras theorem:
