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s2008m [1.1K]
3 years ago
9

B 4 cm 8 cm 4 cm 4 cm8 cm 4 cm Calculate the areas of the shape

Mathematics
1 answer:
spayn [35]3 years ago
5 0
4 t 3 cm my as to many Candice
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How do you find direct variation? im having trouble understanding this subject
rodikova [14]
I was too just a couple of weeks ago. So direct variation is the constant way to variables change together. EX: 
x  y
1 2
2 4
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Direct variation must be in the format b=ka where k is a constant. So the direct variation here could be y=2x. Understand?
5 0
3 years ago
Prove that the trajectory of a projectile is parabolic, having the form y = ax + bx2. To obtain this expression, solve the equat
olga_2 [115]

Answer: y = v₀tgθx - gx²/2v₀²cos²θ

a = v₀tgθ

b = -g/2v₀²cos²θ

Step-by-step explanation:

x = v₀ₓt

y = v₀y.t - g.t²/2

x = v₀.cosθt → t = x/v₀.cosθ

y = v₀y.t - g.t²/2

v₀y = v₀.senθ

y = v₀senθ.x/v₀cosθ - g/2.(x/v₀cosθ)²

y = v₀.tgθ.x - gx²/2v₀²cos²θ

a = v₀tgθ → constant because v₀ and θ do not change

b = - g/2v₀²cos²θ → constant because v₀, g and θ do not change

8 0
3 years ago
[20 POINTS]
amid [387]

C seems to make the most sense, logarithmic and exponential functions are not gradual, and a step function just wouldn't fit in my eyes.


5 0
3 years ago
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The figure shows a circle graphed on a coordinate plane
frosja888 [35]
I'm pretty sure that you need to multiply pie times the radius of the circle
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