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AfilCa [17]
3 years ago
12

Please help me with this homework

Mathematics
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

Step-by-step explanation:

10^2+3^2=109 and sqrt 109 getting 10.4

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Step-by-step explanation:

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{5}^{2}  =  {4}^{2}  +  {x}^{2} \\  {x}^{2}   =  {5}^{2}  -  {4}^{2}  \\  {x}^{2}  = 9 \\  x  =  \sqrt{9}  \\ x = 3

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An equilateral triangle has a perimeter of 51x + 3. What is the length of each side of the triangle?
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4 years ago
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A vial holds 2 milliliters of pixie dust. How many vials can we fill with 13 milliliters of pixie dust?
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3 years ago
The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya i
Alexeev081 [22]

Maya travels  4.19 feet/sec faster than Kelly !

Difference in distance is : 106.76-56.52 = 50.24 feet

<u>Step-by-step explanation:</u>

Here we have , The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is. We need to find In one rotation of the carousel, how much farther does Maya travel than Kelly . Let's find out:

Kelly is riding on the inner ring, which has a radius of 9 feet

Total distance traveled by Kelly is circumference of circle with radius 9 feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 9

⇒ Distance = 56.52feet

Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring .

Total distance traveled by Maya is circumference of circle with radius (8+9=17) feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 17

⇒ Distance = 106.76feet

Therefore , Difference in distance is : 106.76-56.52 = 50.24 feet

Now , Speed of both is give by

⇒ Speed_k_e_l_l_y=\frac{56.52}{12} = 4.71 feet/sec   And ,

⇒ Speed_M_a_y_a=\frac{106.76}{12} = 8.90 feet/sec

Faster Maya travels = 8.90-4.71 = 4.19

So , Maya travels  4.19 feet/sec faster than Kelly !

8 0
4 years ago
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