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
sveticcg [70]
3 years ago
12

The angular velocity of a point with radius 8 feet is 10 pi radians per second. Find the speed of the point.

Mathematics
2 answers:
Monica [59]3 years ago
6 0

Answer:

80π feet/ second.

Step-by-step explanation:

Angular velocity of a point = 10π radians per second

Radius of the circle is 8 feet.

We know the formula of angular velocity is

Angular velocity = \frac{speed}{radius}

10π = \frac{speed}{8}

Speed = 80π feet/ second.

Option C is the answer.

____ [38]3 years ago
6 0

Answer: 80\pi\text{ ft/sec}

Step-by-step explanation:

Formula : \text{Speed= Angular velocity x Radius}   (1)

We are given that , The angular velocity of a point with radius 8 feet is 10 pi radians per second.

i.e. Radius = 8 feet

Angular velocity = 10\pi radians per second.

Then, the speed of the point will be :-

\text{Speed= }10\pi \times 8   [using (1)]

=80\pi\text{ ft/sec}

Hence, the speed of the point =80\pi\text{ ft/sec}

You might be interested in
Help please! Thank you
RoseWind [281]
The correct answer is A.
3 0
3 years ago
What degree of rotational symmetry does an equilateral triangle have
ivann1987 [24]

Answer:    There are three rotational symmetries of an equilateral triangle: rotation by zero degrees (the identity operation), rotation by 120 degrees, and rotation by 240 degrees. This group of symmetry operations is isomorphic to the cyclic group of 3 elements: [math]C_3.[/math]

Step-by-step explanation:

7 0
3 years ago
What is the greatest common factor of 49 and 63
Mekhanik [1.2K]
The greatest common factor is 7.
3 0
3 years ago
Read 2 more answers
The data set shown below represents the number of times some families went out for dinner the previous week. 4, 2, 2, 0, 1, 6, 3
mestny [16]

Answer:

The correct options are:

  • Four families said they ate out twice the previous week.
  • One family said they ate out 5 times the previous week.
  • The median best represents the data set.

Step-by-step explanation:

We are given a data set as:

4, 2, 2, 0, 1, 6, 3, 2, 5, 1, 2, 4, 0, 1

On arranging this data set in the frequency table we get:

Number of times they went for dinner    Number of families  

           0                                                          2

           1                                                           3

           2                                                          4

           3                                                           1

           4                                                           2

           5                                                           1

           6                                                            1

  • Hence, the range of the number line is between 0 to 6.
  • Also there are 4 dots above 2.

    Hence,  Four families said they ate out twice the previous week.

  • Also there is one dot above 5.

        Hence,  One family said they ate out 5 times the previous week.

  • The data set is not symmetrical since the median is 2 and the data points to the left and to the right do not have symmetry.

Hence, the data set is not symmetrical.

  • Also we know that the median of the data is the central tendency of the data and always best represents the data.

Hence, The median best represents the data set.

7 0
3 years ago
Read 2 more answers
A:B=3:4 and B:C =7:2 then find A:C? *​
Mazyrski [523]

Answer:

21 : 8

Step-by-step explanation:

A:B=3:4

A/B = 3/4

A = 3/4 B..... (1)

B:C =7:2

B/C = 7/2

B = 7/2 C.... (2)

From equations (1) & (2)

A =  \frac{3}{4}  \times  \frac{7}{2} C \\  \\ A =  \frac{21}{8}    \\  \\  \frac{A}{C}  = \frac{21}{8} \\  \\ A :C = 21 : 8

7 0
3 years ago
Other questions:
  • A walkway is being installed around a rectangular playground. The playground is 30 feet by 12 feet, and the total area of the pl
    7·2 answers
  • A plane travels 3,625.26 miles in 6.9 hours. What is the plane’s unit rate?
    8·1 answer
  • Jeff said that -2 is less than -3 is he correct
    9·2 answers
  • If the average American sleeps 8 hours a night, with a standard deviation of 1 hour, and I plan on gathering a sample of 12 coll
    14·1 answer
  • All isotopes of technetium are radioactive, but they have widely varying half-lives. If an 800.0 g sample of technetium-99 decay
    10·1 answer
  • Enter the number of cups of pineapple juice Francine uses for 11 cup of orange juice.
    15·1 answer
  • Solve the equation, and check the solutions √(x+9)/4=3.
    8·1 answer
  • What is this answer? A B C OR D?
    7·2 answers
  • How much material, in square inches, is needed to make the flag? square inches If the material costs $0. 15 per square inch, how
    15·1 answer
  • A factorial design has ____________________________________________________________. a. two or more dependent variables. b. two
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!