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3 years ago

10

Find the height of a building that casts a shadow 15 feet long at the same time of day that a stick 6 feet long casts a shadow o

f 3 feet.

2 answers:

Sonbull [250]3 years ago

5 0

The building is 30 feet tall

Shkiper50 [21]3 years ago

5 0

The building is 30ft.

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Given: rectangle ABCD is similar to rectangle ZBXY. If ZY = 5, XC = 3, DC = 4, then XY =

soldier1979 [14.2K]

Answer:

The length of XY is either 10 or 2.5.

Step-by-step explanation:

Given information: ZY = 5, XC = 3 and DC = 4.

Case 1: Rectangle ABCD is smaller than ZBXY.

The opposite sides of the rectangle are same.

$ZY=BC+XC$

$5=BC+3$

$2=BC$

The length of ABCD is 4 and width of ABCD is 2. The width of ZBXY is 5. The corresponding sides of the similar rectangles are is in the same proportion.

$\frac{4}{XY}=\frac{2}{5}$

$\frac{4\times 5}{2}=XY$

$10=XY$

Therefore the value of XY is 10.

Case 2: Rectangle ABCD is larger than ZBXY.

$ZY=BC-XC$

$5=BC-3$

$8=BC$

The length of ABCD is 4 and width of ABCD is 8. The width of ZBXY is 5. The corresponding sides of the similar rectangles are is in the same proportion.

$\frac{4}{XY}=\frac{8}{5}$

$\frac{4\times 5}{8}=XY$

$2.5=XY$

Therefore the value of XY is 2.5.

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3 years ago

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A die is tossed two times and the number appearing on the die is noted each time. What is the probability that the sum of two nu

ValentinkaMS [17]

Answer: 99

Step-by-step explanation:

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3 years ago

If you use exactly eight cups of cauliflower to make 6 veggie burritos and if you continue to make burritos using the same recip

Vitek1552 [10]

Answer:

9 burritos

Step-by-step explanation:

We can use ratios to solve

8 cups 12 cups

---------- = -----------------

6 burritos x burritos

Using cross products

8x = 6*12

8x = 72

Divide by 8

8x/8 =72/8

x = 9

9 burritos

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2 years ago

A new company estimates its total profit (profit = total revenue minus total cost) as P(x) = x4 – 2x3 – 240x – 35, where P is in

Zigmanuir [339]

With ruffini you easily get 5.6666 months

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3 years ago

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How to do this and I need help pls

tatuchka [14]

Answer:

$9$

Step-by-step explanation:

$f(x) = (x - 2)^{2} \\ f(5) = (5 - 2)^{2} \\ f(5) = {(3)}^{2} \\ f(5) = 3 \times 3 \\ f(5) = 9$

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2 years ago