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
Citrus2011 [14]
3 years ago
13

Can someone help me with this question

Mathematics
1 answer:
horsena [70]3 years ago
6 0

Step-by-step explanation:

Given: diameter = 16 in

hence radius, r is 16 ÷ 2 = 8 in

a) notice that the fan blades divide the circle into 3 equal sectors.

Each sector is hence 1/3 of the entire circumference of the circle

Arc Length of each sector (between blades),

=  (1/3) x circumference

= (1/3) x 2πr

= (1/3) x 2 x 3.142 x 8

= 16.76 in (Answer)

b) similarly, the area between the blades

= (1/3) x πr²

= (1/3) x 3.142 x 8²

= 67.03 in² (answer)

c) The angular velocity is the radians per second that the tip moves

It is given that it moves 8π radians in 2 seconds

hence in 1 second, we expect the tip to move,

8π ÷ 2 = 4π rad/s (Answer)

You might be interested in
What are types of legislature
gulaghasi [49]

Answer:

Two common types of legislature are those in which the executive and the legislative branches are clearly separated, as in the U.S. Congress, and those in which members of the executive branch are chosen from the legislative membership, as in the British Parliament.

8 0
3 years ago
X = ????????? Geometry
bazaltina [42]

Answer:

\boxed{x = 6}

Step-by-step explanation:

Using Chord-Chord Power theorem:

=> (2)(x) = (4)(3)

=> 2x = 12

Dividing both sides by 2

=> x = 6

7 0
3 years ago
Convert (20 possible points)
Sergeeva-Olga [200]

Answer:

9.7*10^9 or 9,700,000,000

Step-by-step explanation:

To find the answer, multiply 9.7 * 10^6 by 1000 times becasue 1kg = 1000g, we got:

9.7 * 10^6 * 1000 = 9.7*10^9 or 9,700,000,000

Hope this help you :3

8 0
2 years ago
Read 2 more answers
5.<br> A number is squared, then multiplied by 6. The result is 54. What was the number?<br> Answer:
madam [21]

Answer:

± 3

Step-by-step explanation:

let n be the number then the number squared is n² , so

6n² = 54 ( divide both sides by 6 )

n² = 9 ( take the square root of both sides )

n = ± \sqrt{9} = ± 3

That is the number is 3 or - 3

8 0
2 years ago
Plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Alex787 [66]

Answer:

C.)  f(x) = −4x + 200

Step-by-step explanation:

Since the number is decreasing, you know the slope will be negative, eliminating the first two choices. The equation in the last choice does not match the given data, so it can be eliminated.

In other words, the easiest way to solve this problem is to check the answers against the given data.

_____

If you want to write the equation from scratch, you need to find the slope. That is ...

 (change in number of cars)/(change in weeks) = (184 -192)/(4 -2) = -8/2 = -4

This matches only one answer, but you can go on to finish the equation by starting with point-slope form:

 y -192 = -4(x -2)

 y = -4x +8 +192 . . . . add 192, eliminate parentheses

 y = -4x + 200 . . . . matches choice C.)

3 0
3 years ago
Read 2 more answers
Other questions:
  • A college student is interested in testing whether business majors or liberal arts majors are better at trivia. The student give
    11·1 answer
  • Mom and dad have 4 daughters each daughter has 1 brother how many members are in the family
    6·1 answer
  • 14.2 is 35.5% of what number?
    14·1 answer
  • Jack observed that he got rashes whenever he ate white berries he picked from his backyard. He concluded that eating white berri
    10·1 answer
  • The narrower the confidence interval, the more informative it is. What are the two main ways in which this can be achieved?
    14·2 answers
  • A transversal intersects two lines and forms a pair of same side interior angles that measure 36° and 4 times that measure. Prov
    10·1 answer
  • Jovani wanted to switch gyms. Fitness 19 charges a one time $39 cleaning fee and $17 per
    8·2 answers
  • HELP WILL GIVE BRAINLIST PLSSSSS I WILL GIVE YOU 79 POINTS IF YOU GET IT RIGHT JUST PLSS HELP ME
    12·2 answers
  • 900 + 50 + 4 + 0.7<br> Please help me
    13·1 answer
  • Solve simultaneously for both x and y: 2^x+1=4 and x^2+2y=31​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!