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-Dominant- [34]
3 years ago
12

At a school carnival, the diameter of the mat of a trampoline is 16 feet and the diameter of its metal frame is 18 feet. What is

the length, in feet, of the metal frame that surrounds the trampoline? Use 3.14 for π and round your answer to the nearest tenth.
A) 50.2 feet
B) 56.5 feet
C) 100.5 feet
D) 113.0 feet
Mathematics
2 answers:
givi [52]3 years ago
7 0
You need the formula C=πd 

18*3.14=56.5
so the answer is 56.5
hope this helps

shusha [124]3 years ago
3 0

Answer:

56.5/ b

Step-by-step explanation:

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boyakko [2]
Property of inverse functions:
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Therefore the answer to both is True.
7 0
4 years ago
Read 2 more answers
4 measurements = 10 points Can anyone help?
m_a_m_a [10]

FIG A : ANGLE OF BAC = 67.38 °

FIG B : LENGTH OF RT = 10.549 cm

FIG C: LENGTH OF AB =  5.282 cm

FIG D:  ANGLE OF ACB = 37.303°

Step-by-step explanation:

Fig A:

ABC angle = ( Opposite side) / (Hypotenuse)

                  Sin Ф = (12) / (13)

                   Ф = Sin⁻¹ ( 12/13)

                    Ф = 67.38 °

Fig B:

By the basic property of  trigonometry

Tan Ф = (Opposite side) / (Adjacent side)

Tan Ф = (14)/ X

X= 14 / (Tan 53° )

Length of RT = 10.549 cm

Fig C:

By the basic property of trigonometry

Sin Ф = (Opposite side) / (Hypotenuse)

Sin Ф = (X) / 12.5

X = 12.5 * Sin 25°

X=  5.282 cm

Fig D:

From the basic property of Trigonometry

Tan Ф = (Opposite side) / (Adjacent side)

Tan Ф = (8/10.5)

Ф = Tan⁻¹ ( 8/10.5)

  Ф = 37.303°

8 0
4 years ago
PLEASE HELP!!! Would you rather paint 3/4 of a circle or a circular ring? Using area, explain your reasoning. Include calculatio
Nostrana [21]

Answer: I would paint either of the 3/4 of a circle or a circular ring.

Step-by-step explanation: We shall start by calling the three quarter circle on the left A, and the ring on the right we shall call B.

The area of both can be calculated and that figure which results in the lesser value (of area) shall cost you less to paint.

For A, the area of the circle is given as

Area = πr²

Where π shall be taken as 3.14 and the radius r is 6.

Area = 3.14 * 6²

Area = 3.14 * 36

Area = 113.04

The area of the quarter of the circle would be subtracted from the total area as shown in the calculation above.

Area of sector = ∅/360 * πr²

The sector is a quarter of the circle and that makes the angle at the sector to be equal to (360/4) 90 degrees. Therefore ∅ equals 90.

Area of sector = (90/360) * 113.04

Area of sector = 1/4 * 113.04

Area of sector = 28.26

Area of A therefore is derived as;

Area of A = 113.04 - 28.26

Area of A = 84.78 square metres

For B, the area of the ring is given as follows;

Area of B = Area of larger circle - Area of smaller circle

Area of B = πR² - πr²

Where R is the radius of the larger circle and r is the radius of the smaller inner circle. By factorizing the right hand side of the equation, we now have;

Area of B = π (R² - r²)

Area of B = 3.14 (6² - 3²)

Area of B = 3.14 (36 - 9)

Area of B = 3.14 * 27

Area of B = 84.78 square metres.

From the calculations shown along with the explanations, both the three-quarters and the ring have exactly the same area, which means you are going to spend exactly the same quantity of paint and spend the same amount of time painting either one of them.

So the answer is; I would paint EITHER ONE OF THEM.

3 0
3 years ago
Which One Does Not Belong? Use a complete sentence to explain your choice.
Yuki888 [10]

Answer:

3 +9 does not belong because it doesn't equal 10 like the rest of them do.

3 0
3 years ago
What is 1.089times27.43
maria [59]
29.87127 or, if rounded, could be 29.8713, 29.871, 29.87, or 29.9
8 0
3 years ago
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