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ddd [48]
3 years ago
10

kayla is drawing a picture of her favorite building in her city, the height of the building on her drawing is 3 inches tall, the

actual height of the building is 36 feet, what is the scale factor
Mathematics
1 answer:
Stolb23 [73]3 years ago
4 0

Answer:

1/12

Step-by-step explanation:

3/36 can easily be simplified into 1/12 you're welcome :)

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Use the given information to solve for x and y
Anuta_ua [19.1K]

Answer:

x = 10 and y = 7

Step-by-step explanation:

Equalateral triangle means all sides are equal.

x = 10,  easy

make y + 3 = 10

y = 7

Easy, no real math needed. lol

4 0
3 years ago
Write an equation for a parabola with a focus of (1,-2) and a directrix of y=6
FinnZ [79.3K]

Answer:

y = - \frac{1}{16}(x - 1)² + 2

Step-by-step explanation:

Any point (x, y) on the parabola is equidistant from the focus and the directrix.

Using the distance formula

\sqrt{(x-1)^2+(y+2)^2^} = | y - 6 |

Square both sides

(x - 1)² + (y + 2)² = (y - 6)² ( expand the factors in y )

(x - 1)² + y² + 4y + 4 = y² - 12y + 36 ( subtract y² - 12y from both sides )

(x - 1)² + 16y + 4 = 36 ( subtract 4 from both sides )

(x - 1)² + 16y = 32 ← subtract (x - 1)² from both sides )

16y = - (x - 1)² + 32 ( divide all terms by 16 )

y = - \frac{1}{16} (x - 1)² + 2

8 0
3 years ago
Which of the following shows this trapezoid rotated 90°
murzikaleks [220]

Answer:

d

Step-by-step explanation:

i did th etst hope it helps

3 0
3 years ago
I really need help. It would mean a lot ❤️!
crimeas [40]

Answer: The domain has to be x and the range y. But for independent and dependent variable I can't help. So srry. The picture doesn't show the work. Have a nice day :)

4 0
2 years ago
The area of a quarter circle is 19.625 square kilometers. what is the quarter circle's perimeter?
liubo4ka [24]

a quarter of a circle is 19.625

 so the area of full circle is 19.625 x 4 = 78.5 sq. km

area of a circle is PI x r^2

78.5 = 3.14 x r^2

78.5/3.14 = 25 = r^2

r = sqrt(25) = 5

radius is 5 km

circumference ( perimeter) = 2 x PI x r

2 x 3.14 x 5 = 31.4 km

 perimeter is 31.4 km

6 0
3 years ago
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