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GrogVix [38]
3 years ago
8

A plane is flying at an altitude of 17,000 feet. The angle of depression from the plane to the airport is 21 degrees. What is th

e distance between the plane and the airport, to the nearest tenth of a foot?
I'll give brainiest to correct answer!
Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

tan 21 = 17 000 / d

d = 17000/ tan21 = 44286.5 ft

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It's possible to build a triangle with side lengths of 3.3, and 9<br> A. True<br> B. False
mario62 [17]
True it is possible to built a triangle with 3.3 and 9. Two long we sides would be 9 and the bottom side would be 3
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I always feel guilty about venting. I always feel like I shouldn't because someone is always going through something worse right
PilotLPTM [1.2K]

Answer:

yup

Step-by-step explanation:

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3 years ago
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A car is traveling at 47 mph. If its tires have a diameter of 27 inches, how fast are the car's tires turning? Express the answe
Amiraneli [1.4K]

Answer:

3676.44 rad/min

Step-by-step explanation:

It is a problem about the angular speed of the car's wheel.

You can calculate the angular speed by using the following formula, which relates the tangential speed of the wheels (the same as the speed of the car) with the angular speed:

\omega=\frac{v}{r}    ( 1 )

v: speed of the car = tangential speed of the wheels = 47mph

r: radius of the wheels = 27/2 in = 13.5 in

you change the units of the speed:

47mph*\frac{63360in}{1mille}*\frac{1h}{60min}=49632\frac{in}{min}

next, you replace the values of v and r in the equation (1):

\omega=\frac{v}{r}=\frac{49632in/min}{13.5in}=3676.44\frac{rad}{min}

Then, the car's tires are turning with an angular speed of 3676.44 rad/min

8 0
3 years ago
suppose the annual rate of inflation is about 4% this means that the cost of an item increases by about 4%. write and evaluate a
Mashcka [7]
Cost = (3,500) * (1.04)^years
Cost = (3,500) * (1.04)^4
<span><span><span>Cost = (3,500) * 1.16985856 </span> </span> </span>
<span><span>Cost = </span>4,094.50</span>



4 0
3 years ago
Answer all for Brainliest (easy math) 5 questions for 30 points
sweet-ann [11.9K]

1) The caterpillar was already at 4.5 feet so 4.5 will be added. If it crawls upwards 38 of an inch every minute and the amount of minutes is not specified, this will be represented as 38x. That means the answer is C. f(x) = 38x + 4.5

2) Substitute the known values into the equation. There are 7 people at $8.25 a person, which is a total of $57.75 <u>I used 7 because he invites 6 friends, plus himself. </u>He only has $50 on his gift card, so he won't have enough to cover the cost. The answer is A.

3) They start out with 40lbs and recieve 120 more. They have 160lbs in total. If they sell 8lbs a day for 5 days, thats 8*5 or 40lbs total. 160 - 40 = 120lbs left after 5 days. I'd say the answers are A, B, and D.

4) I think the answer would be C because 1,500 is used to find the number of grams of isotope present after t years. The number of grams can't be 1,500. I hope that makes sense because I'm not sure how to explain it.

5) The growth factor is 2 (2x, x being the number of hours). Multiply by 15 because the lab has 15 of them. The answer is B. f(x) = 15 * 2x

I hope this helps you! I'm sorry if I got any of them wrong!

7 0
3 years ago
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