1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amid [387]
3 years ago
15

Suppose a railroad rail is 3 kilometers and it expands on a hot day by 18 centimeters in length. Approximately how many meters w

ould the center of the rail rise above the​ ground?
Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

  16.43 meters

Step-by-step explanation:

If the shape of the rise is a triangle, then the center of it is half the total length from the end. We can find the rise (y) using the Pythagorean theorem:

  1500.09² = 1500² +y² . . . . .dimensions in meters

  270.0081 = y²

  y = √270.0081 ≈ 16.43 . . . . meters

About the most it would rise is 16.43 meters.

___

If the shape is an arc of a circle, the height is about 14.2 meters.

You might be interested in
An aircraft on a reconnaissance mission takes off from its home base and flies 550 miles at a bearing of s 46° e to a location i
liubo4ka [24]

The  total distance it flies, rounded to the nearest mile is: d. 1,692 miles .

<h3>Total distance</h3>

First distance= 550 miles (given)

Second distance=483 miles (given)

Now let find the third distance

Let x represent the third distance

Hence:

x/sin79 = 550/sin55

x= 659.1

Now let calculate the total distance

Total distance=550+483+659.1

Total distance= 1692.1

Total distance= 1692 miles (rounded)

Therefore the correct option is d.

Learn more about total distance here:brainly.com/question/4931057

#SPJ1

4 0
2 years ago
Which equation represents the graphed function?
umka2103 [35]

you know that (0,3) is a point and (1,1) is another point.

so now you have to replace them in the follow equations.

i did that and the right answer is the first equation => y=-2x+3

8 0
3 years ago
Read 2 more answers
How to find the total distance traveled by a particle?
motikmotik
You need  to know the equation of motion for the particle.  
5 0
4 years ago
Which correctly describes a cross section of the square pyramid? Check all that apply.
MariettaO [177]

Answer:

acd

Step-by-step explanation:

please give brainly

6 0
3 years ago
Read 2 more answers
Can someone please tell me the answer on this.
marishachu [46]

Answer: x = 31

Step-By-Step:

<u>To Find x:</u>

<u />\left(2x+20\right)+\left(x+10\right)+\left(2x-5\right)=180 (Angle Sum Property Of Triangles)

(Remove the brackets)

<u />2x+20+x+10+2x-5=18<u />

(Group Accordingly)

<u />2x+x+2x+20+10-5=180<u />

= 5x+20+10-5=180

= 5x\:+\:25 =180

= 5x= 180 - 25

= 5x = 155

= x=\frac{155}{5}

= 31

<u>Therefore</u> x = 31

So,

Angle A = x + 10 = 31 + 10 = 41

Angle B = 2*x + 20 = 2*31 + 20 = 82

Angle C = 2*x - 5 = 62 - 5 = 57

5 0
3 years ago
Other questions:
  • A car can travel 480 miles on a full tank of petrol. The tank holds 60 litres. A driver fills the tank and sets off on a journey
    7·1 answer
  • What is the image of f for a dilation with center (0,0) and a scale factor of 10
    6·1 answer
  • Please answer these questions I have an f if I don't get help I will die
    6·1 answer
  • How do i find the slope
    10·1 answer
  • 3.
    15·2 answers
  • 19. Given that the lines are parallel, what angle is congruent to angle 6?
    8·1 answer
  • The probability, P, that a person responds to an advertisement can be modeled by the exponential function P = 1 – e^-0.047t. In
    13·1 answer
  • I need to find The value of x
    9·1 answer
  • PLEASE HELP I WILL MARK U BRAINIEST PLEASEEE HELPPPPP
    10·1 answer
  • Help me please please please
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!