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SIZIF [17.4K]
3 years ago
6

Given a standard day, at what altitude is the true airspeed of an aircraft approximately twice of what the airspeed indicator re

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Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

40000ftMSL

Step-by-step explanation:

We know that airspeed is measured using a pilot tube

And the air pressure is a function of density given as

Pressure= 1/2 xdensityx V²

So at 40,000ftMSL

Is this is replaced for V in the equation then the density of air will be 1/4 that of sea level

So since we are deriving velocity from pressure and pressure is 1/4 so the velocity Will be half of its pressure since velocity is squared from The equation above

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2(x + 6) in distributive property expression in expanded form
Crazy boy [7]

Answer: 2x+12

Step-by-step explanation:

Multiply 2 by each number and letter in the parenthesis.

2*x+2*6=2x+12

3 0
3 years ago
The rate of change is<br><br> A. -4<br> B. -1<br> C. 1<br> D. 4
babymother [125]
The rate of change is 4 so your answer would be D. 4
3 0
2 years ago
The weekly pay for working a job is given by the function P(h) = 15h, where "h" is the number of hours worked. The company restr
Blababa [14]

Answer:

Either B or D.

Step-by-step explanation:

I consider both options valid. It all depends on how the employer is keeping track of time, ie if the pay "ticks" every 60 minutes, or an employee is allowed to clock in half hours.

Will I be able to work 30 and a half hour for example? If I'm allowed to, D.

If I have to work multiple of 60 minutes, B.

6 0
3 years ago
Read 2 more answers
For every 140 feet that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles
Mars2501 [29]

Answer: The wheels turn about 3771 times in 5 miles.

Step-by-step explanation:

Given, Kelly rides on her bicycle such that the number of times wheels turn for every 140 feet = 20

Turns for every feet = \dfrac{20}{140}=\dfrac{1}{7} ...(i)

To find : Number of times wheels turn in 5 miles.

Since , 1 mile = 5,280 feet

Then, 5 miles = 5 x (5,280 feet) = 26,400 feet

Now , Number of times the wheels turn in 26,400 feet = 26400 x (Turns for every feet)

26400\times\dfrac{1}{7}=3771.42857143\approx3771   [From (i)

Hence, the wheels turn about 3771 times in 5 miles.

5 0
3 years ago
A segment with endpoints (5,8) and (-6,8) is rotated around the origin. How long will the new segment be?
Gekata [30.6K]
The segment was only rotated, not changed. It would be the same length as the original.

To find the length, use the distance formula.

\sqrt{ {(x2 - x1)}^{2}  + ( {y2 - y1)}^{2} }
(5, 8) would be point 1.

(-6,8) would be point 2.

Plug them into the formula.

\sqrt{( { - 6 - 5)}^{2}  + ( {8 - 8)}^{2}  }
Simplify.

\sqrt{( { - 11)}^{2}  + ( {0)}^{2} }
\sqrt{121 + 0}
\sqrt{121}
Square root this answer.
\sqrt{121}  =  + or - 11
Negative distances aren't possible, so your answer is 11.

Hope this helped!

:)
5 0
3 years ago
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