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
MatroZZZ [7]
3 years ago
10

PLEASE SOVEL THIS I WILL GIVE OUT 20 POINT

Mathematics
1 answer:
Anettt [7]3 years ago
5 0

9514 1404 393

Answer:

  21.25 seconds

Step-by-step explanation:

In miles per second, the speed of the jet is ...

  (720 mi/h)/(3600 s/h) = 1/5 mi/s

The speed of the sound is the same:

  (1 mi)/(5 s) = 1/5 mi/s

Then the rate of closure between the airplane and the sound is ...

  (1/5 mi/s) +(1/5 mi/s) = 2/5 mi/s

To find the time required to close a gap of 8 1/2 miles, we can use the relation ...

  time = distance/speed

  time = (8.5 mi)/(0.4 mi/s) = 21.25 s

The pilot will hear the thunder 21.25 seconds after the flash.

You might be interested in
B=5a+7 -3a+2b=-7<br> What is the solution to the system of equations shown above?
anastassius [24]
But the file is not open
6 0
2 years ago
Read 2 more answers
1. What is the volume, in cubic centimeters, of the sphere shown below? Use 3.14<br> for Pi
prohojiy [21]

Answer:

113.04 cm³

Step-by-step explanation:

diameter = 6cm

so radius = 3cm

Volume of sphere = \frac{4}3}\pi r^3

= 4 * 3.14 * 3 * 3 *3 / 3

=  4 * 28.26

= 113.04 cm³

6 0
2 years ago
Find the area of the figure.<br> PLS I NEED HELP FAST I BEG YOU!
Nina [5.8K]
585 is correct!

LxWxH is for area

Mark with crown!
6 0
2 years ago
Each of the 9 parking lots at an automobile plant holds the same number of new cars. The lots lots are full. If there are 431 ca
Serjik [45]

431 \div 9
=47.8888 when you round it up you can get get about 48 then you estimate to about 50.
3 0
3 years ago
Two friends store 3 cereal bors equally. How many cored bors each person get? Show your work Write an equation &amp; solution: E
maria [59]

Answer:

1 \frac{1}{2}

Step-by-step explanation:

There are a total of 2 friends, if they have 3 cereal bars and want to split it equally then we simply need to divide the number of cereal bars by the number of friends which would give us the number of cereal bars that each individual will get, which will be represented by x

x = 3 / 2

x = 1 \frac{1}{2}

Finally, we can see that each friend will get a total of 1 and a half of a cereal bar.

7 0
2 years ago
Other questions:
  • 4m + 9 + 5m - 12 = 42
    8·2 answers
  • A couch is selling for $450. After not selling for 4 months, it is marked down to $427. What is the percent markdown?
    10·1 answer
  • Conclusion: m∠SPT + m∠TPU = 90° Which of the statements supports the conclusion from the diagram and the GIVEN information.
    14·1 answer
  • Simplify 5(x-6). A.)-x<br> B.)5x-6<br> C.)10x-30
    13·2 answers
  • Please help will give brainliest
    8·1 answer
  • Henry steps onto an elevator at the first floor. He goes up to the 9th floor and then comes down 2 floors. He then goes up 4 flo
    14·2 answers
  • Prove that the following triangles are similar?
    10·1 answer
  • Convert 0.067 km to mm
    11·1 answer
  • Can you solve it of mathematic
    7·1 answer
  • The number y of objects a machine produces is proportional to the time x (in minutes) that the machine runs. The machine produce
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!