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
Alenkasestr [34]
3 years ago
13

I need some help on these two questions.

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

The length of the arcs are calculated as

arc = circumference of circle × fraction of circle

(13)

arc = 2πr ×\frac{72}{360}

      = 2π × 25 × \frac{1}{5} = 10π units

(14)

arc = 2π × 2 × \frac{270}{360}

      = 4π × \frac{3}{4} = 3π units

You might be interested in
A sphere has a diameter of 22 units what is the radius and volume
lilavasa [31]

Answer:


Step-by-step explanation:

11

7 0
3 years ago
SOMEONE HELP !!!!! PLEASEEEEEEEEEE!!!¡¡¡!¡!¡
vladimir1956 [14]
Answer is a, 57.49.

17.42-12.60-9.62= $-4.80+62.29=57.49
4 0
3 years ago
Determine the nth term for each of the following sequences:16,15,14,13,12,..
Vladimir79 [104]
F(n) = 1st term - common difference (n - 1)

The operation is subtraction because the sequence is decreasing.

n = number of the term you are looking for
1st term = 1st number in the sequence, in this case, 16
common difference = difference between one number to the next

f(n) = 16 - 1(n-1)

Assuming we are looking for the 5th term.
f(5) = 16 - 1(5-1)
       = 16 - 1(4)
       = 16 - 4
       = 12     * as you can see, 12 is the 5th term of the sequence.

If you are looking for the equivalent of the nth term, simply substitute n by the number you are looking for and solve the equation.
7 0
3 years ago
What is f(−3) for the function f(a)=−2a2−5a+4?
Readme [11.4K]

Answer:

f(-3)

f(a) = -2a² - 5a + 4

Substitute a with its value, -3

f(-3) = -2(-3²) - 5(-3) + 4

f(-3) = -2(9) + 15 + 4

f(-3) = -18 + 19

f(-3) = 1

the value of f(-3) is 1.

7 0
2 years ago
Read 2 more answers
I need help in my alg assignment, I'm trying to finish up my class and my friend explain this to me but I don't understand and c
Alex
50 boys 35 girls 4.40 times 5 is 22+14=36
so all your doing here is 35 times 0.4 because their are 35 girls and you multiple that by 0.4
same thing for the guys anyway answer is 36
3 0
3 years ago
Other questions:
  • A cone with a diameter of 17 feet has a volume of 190.07 cubic feet, find the height of the cone.
    10·1 answer
  • Francis is making cookies. The recipe for chocolate chip cookies calls for 2 2/3 cups of flour, the recipe for peanut butter cal
    10·1 answer
  • Just the answer please
    13·2 answers
  • What is the distance rounded to the nearest tenth, between the points (0, 5) and (8, 0)?
    14·2 answers
  • What is 12 to the 2nd power
    8·1 answer
  • What is the estimate of -4.2 - (-2.9). Show your work
    12·1 answer
  • In 2012, the worlds largest pumpkin weighed 913 kilograms. An average sized pumpkin weighs 5,000 grams. The 2012 world record pu
    15·1 answer
  • Couch Emanuel is trying to lose weight. he starts 2017 weighing 296 pounds. If he plans to burn enough calories to lose 3 pounds
    12·1 answer
  • What was the primary goal of mine workers’ strikes? A. to stop poor pay and dangerous working conditions B. to open new land to
    14·1 answer
  • What is the value of the expression 29-|7-11|
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!