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Nikolay [14]
3 years ago
7

Each railroad car in a train set is 6 inches in length. The railroad track is 5 feet long. How many railroad cars can fit on the

track?
A 30 cars
B
15 cars
O c. 11 cars
OD 60 cars
OE 10 cars
Mathematics
1 answer:
avanturin [10]3 years ago
3 0

Answer

I think it's 10 cars

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30 POINTS AVAILABLE
kherson [118]

Answer:

\large\boxed{(x-2)^2+(y-1)^2=34}

Step-by-step explanation:

The equation of a circle in standard form:

(x-h)^2+(y-k)^2=r^2

(h, k) - center

r - radius

We have the endpoints of the diameter: (-1, 6) and (5, -4).

Midpoint of diameter is a center of a circle.

The formula of a midpoint:

\left(\dfrac{x_1+x_2}{2};\ \dfrac{y_1+y_2}{2}\right)

Substitute:

h=\dfrac{-1+5}{2}=\dfrac{4}{2}=2\\\\k=\dfrac{6+(-4)}{2}=\dfrac{2}{2}=1

The center is in (2, 1).

The radius length is equal to the distance between the center of the circle and the endpoint of the diameter.

The formula of a distance between two points:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Substitute the coordinates of the points (2, 1) and (5, -4):

r=\sqrt{(5-2)^2+(-4-1)^2}=\sqrt{3^2+(-5)^2}=\sqrt{9+25}=\sqrt{34}

Finally we have:

(x-2)^2+(y-1)^2=(\sqrt{34})^2

3 0
3 years ago
Got this one wrong can someone help me solve it
galina1969 [7]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Find AB distance. Please help
Svet_ta [14]

Answer:

Solution,

Let,(x1,y1)=(-4,-3)

     (x2,y2)=(3,5)

Using distance formula,

AB=√(x2-x1)²+(y2-y1)²

    =√(3+4)²+(5+3)²

    =√49+64

    =√113 units.

Step-by-step explanation:

7 0
3 years ago
What is the volume of this?
m_a_m_a [10]
Hello there.

Answer: Work out the volume of both:
20 x 15 x 10 = 3000
3 x 3 x 3 = 27.
Subtract the inside part:
3000 - 27 = 2973.

Hope This Helps You!
Good Luck Studying ^-^
3 0
3 years ago
Read 2 more answers
The slope of the line below is -3. Use the coordinates of the labeled point to find the point-slope equation of the line.
muminat
Y-___enter y-coordinate of the point here= -3(x-__enter the x-coordinate here)
4 0
3 years ago
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