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
Stella [2.4K]
3 years ago
11

a person on a moving sidewalk travels 24 feet in 7 seconds. the moving sidewalk has a length of 180 feet. How long will it take

to move from one end of the sidewalk to the other?
Mathematics
1 answer:
Crank3 years ago
7 0
It will take them approximately 52.5 seconds
You might be interested in
Plot the intercepts to graph the equation
natulia [17]
Jsjdhdjsjensbejejdndnsksbdjendkebfkendntjd

8 0
3 years ago
The number of books sold over the course of the four-day book fair were 190, 100, 272, and 74. Assume that samples of size 2 are
g100num [7]

Answer:

the answer is below

Step-by-step explanation:

We have the total number of possible samples = 4 * 4 = 16 (As 4 choices for each value)

in addition we have to as all sample occur with equal probability, probability of each sample = 1/16, below is samling distribution of mean

x1 x2 probabilityP(x1,x2) sample mean

190 190    1/16                 190

190 100    1/16                 145

190 272    1/16                 231

190 74    1/16                 132

100 190    1/16                 145

100 100    1/16                 100

100 272    1/16                 186

100 74    1/16                        87

272 190    1/16                 231

272 100    1/16                 186

272 272    1/16                 272

272 74    1/16                 173

74 190    1/16                 132

74 100    1/16                 87

74 272    1/16                 173

74 74    1/16                 74

Summarizing above with adding duplicate values

sample mean   probability

       74              1/16

      87               1/8

    100                1/16

    132                1/8

    145                1/8

    173                1/8

   186                1/8

   190               1/16

    231               1/8

   272               1/16

5 0
4 years ago
Scientists need to know how gravity acts on space shuttles so they can put the space shuttle in orbit. They use an equation that
patriot [66]

The equation is a scientific law, Newton's Law of Gravity,

F =\dfrac{GMm}{r^2}

This is a pretty bad question. Newton's Law of Gravity is a mathematical model of gravitation, originally a theory, verified by observation, and now superseded by the General Theory of Relativity.

C is probably the best answer to this poor question.


6 0
3 years ago
9/7-8/6= <br> Find the expresstions
Sergio039 [100]
Answer:
8/7 divided by 9/7=8/9
8 0
3 years ago
Read 2 more answers
Help Pre-Calc
Anna11 [10]

Answer:

Average rate of change = 2

Step-by-step explanation:

We need to find the average rate of change of f(x) over the interval [-4,-1], so first we need to find the end points at x=-4 and x=-1.

From graph we see that y=-3 when x=-4, So the point is (-4,-3)

From graph we see that y=3 when x=-1, So the point is (-1,3)

Now we can plug these points into average rate of change formula:

Average\ rate=\frac{f\left(b\right)-f\left(a\right)}{b-a}

where (a,f(a)) and (b,f(b)) are the given points.

Average\ rate=\frac{-3-3}{-4-\left(-1\right)}

Average\ rate=\frac{-3-3}{-4+1}

Average\ rate=\frac{-6}{-3}

Average\ rate=2

Hence final answer is 2.

8 0
3 years ago
Other questions:
  • Which statement is best represented by the inequality d&gt;11
    7·1 answer
  • Select the correct answer. What is the solution set of 4x = y and 2x2 − y = 0? {(0.5, -0.5), (2, -8)} {(0, 0), (2, 8)} {(1.5, 2)
    12·1 answer
  • if a and b are the measures of two first quadrant angles and sin a = 4/5 and sin b = 5/13, find sin a+b.
    6·2 answers
  • Solve each equation you must use
    10·1 answer
  • Solve the following linear equation. Explain every step in the process.
    7·2 answers
  • I need help plsss ;(((
    8·1 answer
  • Write the equation of a line that contains the points 4,1 and -4,5
    11·1 answer
  • Which of the following is false about the function y=-4
    11·1 answer
  • What is the inverse of y =5^x
    13·1 answer
  • Complete the table for the equation
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!