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2 years ago

Pls help extra points and mark brainlist

Mathematics

2 answers:

diamong [38]2 years ago

7 0

Answer:

y=2x

Step-by-step explanation:

Hey!

This is a direct variation problem:

Direct variation describes a simple relationship between two variables . We say y varies directly with x.

y=kx, where k is the constant of variation or constant of proportionality.

==================================================================

We can substitute x and y in the given equation.

40=k20

Divide by 20 on both sides.

40/20=k

k=2

Substitute k in the Direct variation Equation:

y = 2x

==================================================================

Hope I helped, feel free to ask any questions to clarify :)

Have a great day!

-Aadi x

Mashutka [201]2 years ago

5 0

Answer:

B. y = 2x

Step-by-step explanation:

every y value is the value of x multiplied by 2

so that means y=2x

hope this helps luv <3

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If f(x)=x sqrt -25 and g(x)=x-5, what is the domain of (f/g)(x)?

givi [52]

Answer:

Step-by-step explanation:

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2 years ago

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sdas [7]

Answer:

A ≈ 40.3 cm²

Step-by-step explanation:

The area of right Δ ACD is calculated as

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2 years ago

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Xelga [282]

Answer:

Step-by-step explanation:

The volume of a cube is given as:

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2 years ago

Can any math genius help me with this

vovangra [49]

Here's my working for 1) You need to find the exterior angle, then divide by 360 to find the number of sides:

Applying these steps : 

180 (Interior Angles) - 162 = 18 (Exterior angle)

360 ÷ 18 is 20 sides 

For 2)

Its the same method, so apply the steps:

180 - 175 = 5

360 ÷ 5 = 72 sides 

Hope it helps! :) 

8 0

2 years ago