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Mazyrski [523]
3 years ago
15

Find the arc length of the

Mathematics
2 answers:
musickatia [10]3 years ago
6 0

Answer:

3.5\pi

Step-by-step explanation:

Khan academy

Agata [3.3K]3 years ago
4 0

Answer:

Circle circumference = radius * 2 * PI

Arc Length = radius * 2 * PI * Central Angle / 360 degrees

Arc Length = 7 * 2 * PI * (1/4)

= 3.5 * PI

= 10.9955742876

Arc Length = 10.996 (rounded)

Step-by-step explanation:

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50 pts!!! Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of pi (no approx
charle [14.2K]

Answer:

  • 40π

Step-by-step explanation:

<u>Area of circle:</u>

  • A = πr²

<u>Area of α degree sector:</u>

  • S = πr²*α/360

<u>The shaded area is:</u>

  • S = π*10²×(72*2)/360 = 100π×144/360 = 40π
4 0
2 years ago
40 points | Sierra and Alek each have five cousins. Their ages are listed below.
faust18 [17]

Find the mean for both:

Sierra: 2 + 11 + 12 + 13 + 15 =  53

53/5 =10.6

Median is the middle value = 12

Alek: 9 + 11 + 11 + 12 + 13 = 56

56/5 = 11.2

Median = 11

A: The medians do not equal the mean.

B: Sierra's are more spread out, ( no identical ages and a greater range ).

C: Sierra's mean is less than Alek.

D. Sierra has an outlier (2).

The answer would be B

8 0
3 years ago
Webwork Homework Help; If you but that link that leads to a virus i'm reporting your account!
Darya [45]

9514 1404 393

Answer:

  f(x) = sin(0.62832(x +1))

Step-by-step explanation:

The period of the function is the difference between x=4 and x=-6, which is 10 units. Then the horizontal scaling needs to be such that when x changes by 10, the argument of the sine function changes by 2π. That scaling will make it ...

  f(x) = sin(2π(x/10)) = sin(πx/5)

The upward zero-crossing is seen to be at -1, so this function has been shifted left 1 unit. This requires we replace x with x+1:

  f(x) = sin(π/5(x +1))

If we use the given numerical value for pi, this becomes ...

  f(x) = sin(0.62832(x +1))

8 0
2 years ago
Correct &amp; best answer ill get brainliest.
Nezavi [6.7K]
The correct answer I believe in b
4 0
3 years ago
38% of students taking exam P will pass the exam. 5% of students are taking exam P having used ADAPT. 79% of the students using
sergeinik [125]

Answer:

the probability of passing the exam if a student does not use ADAPT is 0.3584

Step-by-step explanation:

Given the data in the question;

Probability a student will pass = 38% = 0.38

Probability a student have used ADAPT = 5% = 0.05

P(passed  | used ADAPT) = 79% = 0.79

Now lets use table

                          Used ADAPT                        Not use ADAPT                 Total

Passed            [0.05×0.79] = 0.0395           [0.38 - 0.0395] = 0.3405     0.38

Not Passed     [0.05-0.0395] = 0.0105        [0.62 - 0.0105] = 0.6095     0.62

Total                             0.05                                      0.95

Now, the probability of passing the exam if a student does not use ADAPT will be;

⇒ P(passed and Not used ADAPT) / P( did not use ADAPT)

⇒ 0.3405 / 0.95

⇒ 0.3584

Therefore, the probability of passing the exam if a student does not use ADAPT is 0.3584

5 0
3 years ago
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