50% of 70 whta method and the answer
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Answer:
<h2>A = 37 cm²</h2>Step-by-step explanation:
Look at the picture.
We have two rectangles:
15cm × 2cm and 7cm × 1cm.
Calculate the areas:
A₁ = 15 · 2 = 30 cm²
A₂ = 7 · 1 = 7 cm²
The area of the figure:
A = A₁ + A₂ → A = 30 cm² + 7 cm² = 37 cm²
a=-16, b=20, c =6
Δ=
max:
max heigh:
at
will fall down at t: