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kogti [31]
3 years ago
9

A turf roller is 0.8m wide with a

Mathematics
1 answer:
siniylev [52]3 years ago
8 0

Answer:

≈ 20.11 m²

Step-by-step explanation:

Area of lawn covered by one full rotation:

  • Ch = πdw, where
  • C= circumference of the roller,
  • w = width of the roller,
  • d = diameter of the roller

<u>Area covered by 20 rotations of the roller:</u>

  • 20*πdw = 20π*0.4*0.8 ≈ 20.11 m²
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6x^2-30x+24 factor completely what is the answer help me
nasty-shy [4]

Answer:

(x-4)(6x-6)

Step-by-step explanation:

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6x²-30x+24 = 6(x²-5x+4) =6(x-4)(x-1)=(x-4)(6x-6)

6 0
4 years ago
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What is the slope of a line that is perpendicular to the line that goes through (5,4) and (-2,-3)?
Snowcat [4.5K]

First, let us solve for the slope of the line which it intersects with:

m’ = (y2 – y1) / (x2 – x1)

m’ = (-3 – 4) / (-2 – 5)

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The slope of the perpendicular line is the negative reciprocal, therefore:

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3 0
3 years ago
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netineya [11]

Answer:

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Step-by-step explanation:

Arc length of a parametric curve is:

L = ∫ₐᵇ √((dx/dt)² + (dy/dt)²) dt

x = t + cos t, dx/dt = 1 − sin t

y = t − sin t, dy/dt = 1 − cos t

L = ∫₀²ᵖⁱ √((1 − sin t)² + (1 − cos t)²) dt

Or, if you wish to simplify:

L = ∫₀²ᵖⁱ √(1 − 2 sin t + sin²t + 1 − 2 cos t + cos²t) dt

L = ∫₀²ᵖⁱ √(3 − 2 sin t − 2 cos t) dt

7 0
4 years ago
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4 years ago
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ololo11 [35]
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360 - 317 = 43

The reason for the 360 is because for any four-sided polygon, the angles always add up to 360 degrees. 

The answer is 43

3 0
3 years ago
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