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EastWind [94]
3 years ago
12

A rotating wind turbine has a diameter of about 145 feet and its circumference is about 456 feet. A smaller model of the turbine

has a circumference of about 16 feet. What will the diameter of the model be? If necessary, round to the nearest whole number.
The diameter of the model will be about ___ feet
Mathematics
2 answers:
Serjik [45]3 years ago
7 0

Answer:

ross-multiplication.

circumference divided by the diameter

10/x = 580/185

10x185=1850

1850/580=3.189

Step-by-step explanation:

give me brainliest

natulia [17]3 years ago
7 0

Answer:

7 feet.

Step-by-step explanation:

<u>Solve</u>

  • Set up a proportion using the given information for the turbine and its model.

C /d =  

C /d

  • Set up a proportion.

660 /210 =  

22/ d

  • Substitute the given values.

660 ÷ 30

210 ÷ 30  ≈  

22/ d

Since 660 divided by 30 is approximately 22, divide 210 by 30 to find the value of d.

660 /210  ≈  

22/ 7

 d ≈ 7

The diameter of the model is approximately 7 feet.

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Weighted average worksheet
frozen [14]
Paper is usually I'd say 1 kg plz brainliest
6 0
3 years ago
The reproduction function for a sardine is f(p) = −0.0005p2 + 4p, where p and f(p) are in hundred metric tons. Find the populati
tensa zangetsu [6.8K]

Answer:

Population (p) = 4,000 hundred metric tons

Size of the yield (f(p)) = 8,000 hundred metric tons

Step-by-step explanation:

The population of sardines 'p', for which the derivate of the function f(p) is zero, is the population that gives the maximum sustainable yield:

f(p) = -0.0005p^2 + 4p\\\frac{df(p)}{dp}=-0.0010p+4\\-0.0010p+4 =0\\p=4,000

The size of the maximum sustainable yield is:

f(p) = -0.0005p^2 + 4p\\f(4,000) = -0.0005(4,000^2) + 4*4,000\\f(4,000) = 8,000

Population = 4,000 hundred metric tons

Size of the yield = 8,000 hundred metric tons

3 0
3 years ago
What is the sum of 8.4*10^8 and 4.2*10^7 written in scientific notation?
anyanavicka [17]
(8.4*10^8) + (4.2*10^7)

= 882,000,000
= 8.82*10^8

Hope it helped :)
5 0
3 years ago
Please help I'm extremely confused. Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale. (picture
Georgia [21]

Answer:

x=8.4

Step-by-step explanation:

use tangent to solve the equation which is opposite/adjacent and set up the proportion

\frac{ \tan(35) }{1} =  \frac{x}{12}

the cross multiply to get x=tan(35)×12 then multiply that to get x=8.4

3 0
2 years ago
4. If the area of the rectangle below is 170in', the length of side s is
dimaraw [331]

Answer:

d=65

Step-by-step explanation:

4 0
3 years ago
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