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
Help plz MATH question for ASM
jok3333 [9.3K]

9514 1404 393

Answer:

  6. step 2; terms are improperly combined; it should be -61n-8=-8

  7. no; point (2, 5) is not part of the solution in the left graph

Step-by-step explanation:

6. Step 2 should be ...

  -61n -8 = -8 . . . . . because -5n-56n = -61n, not -51n

__

7. The boundary lines of both graphs go through the point (2, 5). In the left graph, the line is dashed, indicating that points on the line are not part of the solution set. The point (2, 5) on the dashed line is not a solution to that inequality.

The solid boundary line indicates that the points on the line are part of the solution set. The point (2, 5) on the solid line is a solution to that inequality.

The point (2, 5) is not a solution to both inequalities.

4 0
3 years ago
Read 2 more answers
A school is arranging a field trip to the zoo. The school spends 544.95 dollars on passes for 41 students and 4 teachers. The sc
FrozenT [24]

Answer: I believe it is $20.62

Step-by-step explanation: the student passes+ the food was $845.42 divede that by the 41 students.

7 0
2 years ago
When multiplying bases with exponent, you always multiply the exponents True or false
patriot [66]

Answer: no, you add the exponents.

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
What percent of our world is made of Hydrogen and Helium?
Romashka [77]
Hydrogen is around 0.000053% and Helium is around <span>0.000524%</span>
6 0
4 years ago
for a temporary job between semesters you are painting the parking spaces for a new shopping mall with a letter of the alphabet
Nitella [24]
There are 26 letters in the alphabet

9 numbers can be painted

26 * 9 = 234 spaces
6 0
4 years ago
Other questions:
  • Part a. *if the store has 5/10 beef and 45/50 of chicken. how much does the store have in all?
    9·1 answer
  • The area of a closet floor measures 3 yards by 3 yards and each custom tile that makes up the flooring is 1 1/2 square feet. How
    6·2 answers
  • What is the value of j in the equation √ j + √ j + 14 = 3√ j + 10?
    5·1 answer
  • What is y=x+2 graphed
    15·1 answer
  • When elenas car moves forward such that each tire makes one full rotation the car has traveled 72 inches.How many full rotations
    8·1 answer
  • What is the value of n in 9x27+2x31-28=n
    7·2 answers
  • Suppose that 50% of all watches produced by a certain factory are defective (the other 50% are fine). A store buys a box with 40
    7·1 answer
  • PLS HELP ILL GIVE YOU BRAINLIEST <br><br> What is the area of the circle in terms of pi?
    11·2 answers
  • A. 3<br> B. 1/3<br> C. -3<br> D. -1/3
    15·1 answer
  • HELP ME AND ILL GIVE U BRAINLIST I PROMISE BUT ITS ONLY IF U GET IT RIGHT
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!