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1 answer:
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1. 1st transformation is translation the parent function 6 units to the right to get the function
2. 2nd transformation is reflection the function over the x-axis. This transformation gives you the function
3. 3rd transformation is vertical stretch of the function by a factor of 2 to get the function
Only last two are present in options, then
answer: C and D.
Answer:
Step-by-step explanation:
a). Total surface area of cylinder is defined by sum of curved surface area and surface area of the top and bottom.
Total surface area = 2πrh + 2πr²
Skateboarders use a half pipe structure which are not closed at the ends.
Therefore, curved surface of the half pipe =
= πrh
b). If r = 2.5 m and h = 9 m,
Curved surface area of the half pipe = π(2.5)(9)
= 70.69 m²
≈ 71 m²