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
Lyrx [107]
3 years ago
14

The observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground. The express elevat

or travels nonstop from the ground floor to the observatory on the top floor at a rate represented by the equation y=30x, where y is the height, in feet, and x is the number of seconds.
Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

Answer:

Step-by-step explanation:

Given the rate at which the elevator travels modeled by the expression;

y = 30x where y is the height, in feet, and x is the number of seconds.

If the observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground, we can calculate the time taken to reach the top floor by substituting y = 900 into the equation and solve for x as shown;

y = 30x

900 = 30x

Rearrange

30x = 900

Divide both sides by 30

30x/30 = 900/30

x = 30

Hence it takes 30seconds for the elevator to reach the top floor

You might be interested in
The following transformation occur: ​Trapezoid GHJK is rotated 90°clockwise about the origin, resulting in trapezoid G′H′J′K′ (n
Alik [6]

Answer:

.

Step-by-step explanation:

.

5 0
3 years ago
Hi I need help with the question in the image. Step by step, thank you!
VashaNatasha [74]

The exponential function is f(x) = 18(12)^{-x-4} + 2

<h3>How to determine the equation?</h3>

An exponential function is represented as:

y = b^x

Where b represents the base.

The base is given as:

b = 12

So, we have:

y = (12)^x

It is vertically compressed by a factor of 1/8.

So, we have:

y = 18(12)^x

When reflected across the y-axis, we have:

y = 18(12)^{-x}

The horizontal asymptote is y = 2.

So, we have:

y = 18(12)^{-x} + 2

It passes through the point (-3, 4).

So, we shift the function to the right by 4 units

y = 18(12)^{-x-4} + 2

Express as a function

f(x) = 18(12)^{-x-4} + 2

Hence, the exponential function is f(x) = 18(12)^{-x-4} + 2

Read more about exponential functions at:

brainly.com/question/14355665

#SPJ1

6 0
1 year ago
a geologist noticed that land along a fault line moved 24.8 cm over 175 yrs on average how much did the land move each year
Nata [24]
24.8 cm ÷ 175= 0.141... or 0.14 cm.
The answer is 0.14 cm
6 0
3 years ago
Read 2 more answers
Please Help ASAP See Attached photo
den301095 [7]
B is the answer to this question
6 0
3 years ago
What is (-3,5) reflected across the y axis?
BARSIC [14]
3,5 is the answer i belive

8 0
3 years ago
Other questions:
  • A questionnaire provides 54 yes, 33 no, and 33 no-opinion answers. in the construction of a pie chart, how many degrees would be
    14·1 answer
  • The length of a rectangle is 30 inches and the
    15·2 answers
  • 21,985,233 rounded to the millions place
    10·1 answer
  • Which of the following is a solution of x^2-8x=-27
    13·2 answers
  • Select the graph of the function f (x) = 1/4 Then find the value of f (x) when x = -6.
    13·2 answers
  • Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 2−x and y = 4x + 3 intersect are the s
    5·1 answer
  • A pair of intersecting planes _ intersect in exactly 1 point
    15·1 answer
  • A sphere has a volume of 900 cubic inches. Find its surface area to the nearest whole number. I know how to solve it, but I can'
    11·1 answer
  • What is the slope of the line?<br> $<br> 2<br> 45<br> 6&gt;x<br> -3
    14·1 answer
  • Solve the given equation.<br><br> g/5 = 10
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!