Ardem has two lights one flashes every 15 seconds the other flashes every 42 seconds. They start flashing at the same time. Afte
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Answer:
A = 15 units²
Step-by-step explanation:
The figure has 1 pair of parallel sides and is therefore a trapezium.
The area (A) of a trapezium is calculated as
A = h (b₁ + b₂ )
where h is the perpendicular height between bases and b₁, b₂ are bases
here h = 3, b₁ = 3 , b₂ = 7 , then
A = × 3 × (3 + 7) = 1.5 × 10 = 15 units²
First, apply the rule (easiest way if you have learned it):
Second, apply the last rule:
Third, multiply 5 × 10 to get 50.
Fourth, multiply 6 × 9 to get 54.
Fifth, find the GCF of 50 and 54.
The GCF should be 2.
Sixth, divide the numerator by the GCF.
Seventh, divide the denominator by the GCF.
Eighth, now put 25 and 27 together to get the simplified fraction.
Answer as fraction:
Answer as decimal: 0.9259