4 years ago

What should I do I don’t understand

Mathematics

1 answer:

RSB [31]4 years ago

4 0

Answer:

∠MCD and ∠GCM are complementary

∠FGM and ∠MGC are complementary

∠MCD, ∠CDM and ∠DMC add up to 180°

Step-by-step explanation:

Complementary angles are two angles that add up to 90°.

The angles of a triangle add up to 180°

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Ilia_Sergeevich [38]

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3 years ago

A sound receiving dish used at outdoor sporting events is constructed in the shape of a paraboloid, with its focus 8 inches from

bixtya [17]

Answer:

w≅8.46ft

Step-by-step explanation:

Data

focus=8

vertex=(0,0)

width=?

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parabola equation: $(x-h)^{2}=4p(y-k)$ ; then for V=(0,0), $x^{2} =4py$ , be focus(f)=8in; $x^{2} =4*8*y=32y$ → $y=\frac{x^{2} }{32}$

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3 years ago

What is the perimeter of the shape seen in the figure?

Tatiana [17]

Answer:

P = 64 cm

Step-by-step explanation:

<C = 150° - 90° = 60°

AB = AC

∠B = ∠C = 60° } => ΔABC = EQUILATERAL TRIANGLE =>

=> BC = 10 cm

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Step-by-step explanation:

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