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Tcecarenko [31]
2 years ago
13

PLS HELP I'LL MARK BRAINLEST I GIVE 100 POINTS D:

Mathematics
2 answers:
bonufazy [111]2 years ago
7 0

Answer:

D

Step-by-step explanation:

Sergeu [11.5K]2 years ago
3 0

Answer:

D 4006.64

Area of the bigger circle =pir^2= pi *40^2=5026

Area of smaller circle = pi *18^2=1017

Area of the shaded area= 4009

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den301095 [7]

Answer:

value

Step-by-step explanation:

the v stands for value because it just does

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3 years ago
162×0.967=? guys please help i'm at school and need help
Mnenie [13.5K]
The answer is 156.654
5 0
3 years ago
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Which expression is equivalent to 4C0m430 + 4C1m331 + 4C2m232 + 4C3m133 + 4C4m034? 4x4 + 12x3 + 54x2 + 108x + 81 4x4 + 12x3 + 54
Ymorist [56]

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3 years ago
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A mountain railway AB is of length 864m and rises at an angle of 120° to the horizontal.
Ainat [17]

Answer:

The height above sea level at <em>B</em> is approximately 1,604.25 m

Step-by-step explanation:

The given length of the mountain railway, AB = 864 m

The angle at which the railway rises to the horizontal, θ = 120°

The elevation of the train above sea level at <em>A</em>, h₁ = 856 m

The height above sea level of the train when it reaches <em>B</em>, h₂, is found as follows;

Change in height across the railway, Δh = AB × sin(θ)

∴ Δh = 864 m × sin(120°) ≈ 748.25 m

Δh = h₂ - h₁

h₂ = Δh + h₁

∴ h₂ ≈ 856 m + 748.25 m = 1,604.25 m

The height above sea level of the train when it reaches <em>B</em> ≈ 1,604.25 m

4 0
2 years ago
HELP...here say:write five decimals that have at least 3 digits to the right of the decimal point.Write the expanded form and th
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27÷9=3
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2 years ago
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