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zlopas [31]
2 years ago
11

The students in Mrs. Smith's class placed 26 math textbooks on a scale. The scale indicated a weight of 1,248 ounces. Each math

textbook weighed the same amount. Which shows the weight of 1 math textbook?
Mathematics
1 answer:
irina [24]2 years ago
5 0

Answer:

48 ounces

Step-by-step explanation:

1,248 divided by 26 is 48

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3 years ago
What is the area of a regular nonagon with 10 cm side length and an apothem of 6 cm?
pickupchik [31]

The area of the regular nonagon is 270 sq cm.

Step-by-step explanation:

Given,

Each side of a regular nonagon (b) = 10 cm

The length of apothem (h) = 6 cm.

To find the area of the nonagon.

Formula

The area of a nonagon with b as each side and h as apothem is  = 9(\frac{1}{2}bh)

Now,

Putting the value of h and b we get,

Area = 9(\frac{1}{2}×10×6) sq cm = 270 sq cm

Hence, the area is 270 sq cm.

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3 years ago
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A gardener has 640 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it doe
kari74 [83]

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Answer:

  • 160 ft (out from the river)
  • 320 ft (parallel to the river)

Step-by-step explanation:

Let x represent the length of fence parallel to the river. Then the dimension of perpendicular to the river will be half the remaining fence: (640-x)/2. The total area will be ...

  A = x(640-x)/2

This is the equation of a parabola that opens downward. It has zeros at x=0 and x=640, so its axis of symmetry is x = (0+640)/2 = 320. That is, the peak of the area curve is found when x=320.

The dimensions of the garden with the largest area are 160 ft wide by 320 ft long, where the long side is the river side.

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3 years ago
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Answer:

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Step-by-step explanation:

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