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Sliva [168]
3 years ago
8

Please help me please i really need help please

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

9514 1404 393

Answer:

  100.5 ft²

Step-by-step explanation:

The surface area of the cylinder is given by the formula ...

  SA = 2πr(r +h) . . . . for radius r and height h

Using the given numbers, we find the area to be ...

  SA = 2(3.14)(2 ft)(2 ft +6 ft) = 32(3.14) ft² ≈ 100.5 ft²

The surface area of the cylinder is about 100.5 square feet.

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Find the area of a triangle with a base (b) of 7 feet and a height (h) of 12 feet.
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Answer:

1. 36 miles

2. 108 miles

3. 234 miles

Step-by-step explanation:

Here we have the Distance in miles, time and calculated speed as follows;

Distance (miles)                  Elapsed time (hours)              Speed (miles/hour)

       0                                        0                                          0

       72                                      2                                          36

       144                                     4                                          36

       216                                     6                                          36

Distance = Speed (miles/hour) × Elapsed Time (hour)

Therefore, in

1. 1 hour, she travels

1 × 36  = 36 miles

2. 3 hours she travels

3 hours × 36 miles/hour = 108 miles

3. 6.5 hours she travels

6.5 hours × 36 miles/hour = 234 miles.

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3 years ago
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