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photoshop1234 [79]
3 years ago
11

Hans is a film director, and he is attempting to shoot a complicated scene for a movie set in the American West. In the scene, a

bank robber tries to make a daring escape atop a moving train. Alongside the train, the movie's hero, a lawman, rides on horseback.  Hans plans the scene so that the train will move at a constant speed. The lawman on horseback, while moving in the same direction as the train, will cover the same amount of distance in the same amount of time as the train. The bank robber will move along the train's roof at a speed of 4 meters per second. He will also move in the same direction as the train so that their speeds will combine.  Hans wants to organize the scene so that a camera at rest on the ground will shoot the train as it moves past. He wants the robber, from the camera's point of reference, to be moving at a rate of 25 meters per second. For this scene to work as Hans has imagined it, how fast must the lawman's horse be able to run?
Mathematics
2 answers:
emmasim [6.3K]3 years ago
4 0
The answer would be 45 meters per second.
svetlana [45]3 years ago
4 0

Answer:

It's actually 21 meters per second. I just took it

Step-by-step explanation:

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What polynomial identity should be used to prove that 35 = 8 + 27
Julli [10]

Answer:

Sum of cubes identity should be used to prove 35 =3+27

Step-by-step explanation:

Prove that : 35 = 8 +27

Polynomial identities are just equations that are true, but identities are particularly useful for showing the relationship between two apparently unrelated expressions.

Sum of the cubes identity:

a^3+b^3=(a+b)(a^2-ab+b^2)

Take RHS

8+ 27

We can write 8 as 2 \times 2 \times 2 = 2^3 and 27 as 3 \times 3 \times 3 = 3^3.

then;

8+27 = 2^3+3^3

Now, use the sum of cubes identity;

here a =2 and b = 3

2^3+3^3 = (2+3)(2^2-2\cdot 3+3^2)

or

2^3+3^3 = (5)(4-6+9) = 5 \cdot 7 = 35 = LHS    proved!

therefore, the Sum of cubes polynomial identity should be used to prove that 35 = 8 +27

4 0
3 years ago
Read 2 more answers
A bicycle is traveling at 16 miles per hour. How many feet will it cover in 35 seconds? Round your answer to the nearest tenth o
ch4aika [34]

A  bicycle is traveling at 16 miles per hour it covers 821.33 ft in 35 seconds.

It is required to find How many feet will it cover in 35 seconds.

<h3>What is conversion?</h3>

conversion is the process of changing the value of one form to another for example inches to millimeters, or liters to gallons. Units are used for measuring length, measuring weight, measuring capacity, measuring temperature, and measuring speed.

Given that:

1 hour = 60min×60sec = 3600 sec

1 miles = 5280 feet

16 miles = 16×5280ft = 84480 ft

3600sec ................. 84480  ft

35sec ................................ x ft

x = 35×84480/3600

=2956800 /3600

= 821.33 feet.

Hence, a bicycle is traveling at 16 miles per hour it covers 821.33 ft in 35 seconds.

Learn more about conversion here:

brainly.com/question/3477680

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1 year ago
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n200080 [17]

Answer:

Step-by-step explaSimplify the equation by finding the square root of both sides. √x2=x √0=0. x=0. Check: 02=0.

5 0
2 years ago
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I am Lyosha [343]

Answer:

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Step-by-step explanation:

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