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3 years ago

Which equation represents a proportional relationship?

Mathematics

2 answers:

blagie [28]3 years ago

8 0

Y=15x is the answer :)

meriva3 years ago

7 0

Answer:

y=15x

Step-by-step explanation:

To figure out if an equation is proportional, substitute 0 for x. If y then equals 0, then the equation is proportional.

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The radius of circle A is three feet less than twice the diameter of circle B. If the sun mmm of the diameters of both circles i

yanalaym [24]

Answer:

Area of Circle A = 1133.54

Circumference of Circle A= 119.32

Step-by-step explanation:

Given: Sum of both circle diameters= 49 feet.

Circle A radius= Three feet less than twice the diameter of circle B.

Lets assume diameter of Circle B is "x"

∴ Circle A radius (r)= $(2x-3)$

We know, the diameter of circle is $2r$

Diameter of Circle A is $2\times (2x-3)$

Next as given sum of both circle diameter is 49 feet.

∴ $2(2x-3)+x= 49\ feet$

distributing 2 with 2x and -3

⇒ $4x-6+x= 49$

⇒ $5x-6= 49$

Adding both side by 6

⇒ $5x=55$

Cross multiplying both side.

⇒ $x=\frac{55}{5} = 11$

∴ Diameter of circle B is 11 feet.

Next, subtituting the value of x to get the value of radius for Circle A.

Radius of circle A= $(2x-3)$

⇒ Radius of circle A= $(2\times 11-3)= 22-3$

∴ Radius of circle A= 19 feet.

Area of circle= $\pi r^{2}$

Taking π= 3.14

Area of circle A= $3.14\times 19^{2} = 3.14\times 361$

∴ Area of circle A= 1133.54

Circumference of circle= 2πr

Circumference of Circle A= $2\times 3.14\times 19= 119.32$

∴ Circumference of Circle A= 119.32

3 0

3 years ago

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What is the solution to the system of equations graphed below???

german

Answer:

The solution is (-2,-2)

Step-by-step explanation:

This is the point where the two graphs intersect.

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3 years ago

Shortly before the 1932 presidential election, a national magazine conducted a telephone survey of voters. Based on the results

Alisiya [41]

Data Gathering would be the correct answer ...

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4 years ago

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Which ordered pair is a solution to the system of inequalities? y< 3x y< 5

tatyana61 [14]

Answer:

Step-by-step explanation:

Split it into two:

Y<3x

Y<5

X = 1

Y = 3

(1,3)

X = 2

Y = 6

(2, 6)

Plot the line up to y = 4.999999999999999999999 and not higher.

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3 years ago

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What is the exact volume of the cylinder?

irina [24]

Answer:

15 is the volume of it

Step-by-step explanation:

hope I helped

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