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andreev551 [17]
3 years ago
10

What does coincides mean in geometry

Mathematics
1 answer:
Marianna [84]3 years ago
7 0

Answer:

Two lines or shapes that lie exactly on top of each other. Example: these two lines are coincident, only you can't see them both, because they are on top of each other.

Step-by-step explanation:

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Write a function describing the relationship of the given variables.
Oliga [24]

Answer:

The function describing the relationship of V and t is V = 3t²

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

  variables that can be expressed by an equation in which one

  variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

 constant of variation

* Now lets solve the problem

# V is varies directly with the square  of t

- Change the statement above to a mathematical relation

∴ V ∝ t²

- Chang the relation to a function by using a constant k

∴ V = kt²

- To find the value of the constant of variation k substitute V and t

 by the given values

∵ t = 6 when V = 108

∵ V = kt²

∴ 108 = k(6)² ⇒ simplify the power 2

∴ 108 = 36k ⇒ divide both sides by 36 to find the value of k

∴ 3 = k

- The value of the constant of variation is 3

∴ The function describing the relationship of V and t is V = 3t²

3 0
3 years ago
Need help please help
professor190 [17]
153.9 inches is the correct answer
5 0
3 years ago
Read 2 more answers
To decide if 12.5 centimeters is greater than 140 millimeters, the first step is to set up a proportion. Which of the following
Nuetrik [128]
The answer is The one option C
4 0
2 years ago
URGENT HELP PLS PLS PLS
Gennadij [26K]

Answer:

15 kg

Step-by-step explanation:

Radius of a solid sphere : mass of a solid sphere

3 cm : 9 kg

Find the mass of a sphere of the same material of radius 5 cm

Radius of a solid sphere : mass of a solid sphere

5 cm : x kg

Equate both ratios to find x

3 cm : 9 kg = 5 cm : x kg

3/9 = 5/x

3 * x = 9 * 5

3x = 45

x = 45/3

x = 15 kg

The mass of a sphere of the same material of radius 5 cm is 15 kg

7 0
3 years ago
Please Help ASAP (show work if you want its not needed i just need the answer)
cricket20 [7]

\cos(60)  =  \frac{12}{x}  \\

\frac{1}{2}  =  \frac{12}{x}  \\

x = 24

_____________________________________________

\sin(60)  =  \frac{y}{x}  \\

\frac{ \sqrt{3} }{2}  =  \frac{y}{24}  \\

y = 12 \sqrt{3}

4 0
2 years ago
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