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
Katena32 [7]
3 years ago
10

A sector has a radius of 4 and a central angle of 40 degrees. Find the arc length and area of sector

Mathematics
1 answer:
g100num [7]3 years ago
4 0

Answer:

Step-by-step explanation:

θ = 2π/9 radians

arc length = rθ = 8π/9 units

area of sector = πr²/9 = 16π/9 square units

You might be interested in
Amina was asked to write the prime factorization of 525
ioda

Answer:

Prime factorization of 525 is 3×5×5×7

6 0
3 years ago
Read 2 more answers
3(x + 5)2 + 6 vertex
Tanya [424]

Answer:

The equation does not match the form of any conic section.

Not a Conic Section

Step-by-step explanation:

5 0
3 years ago
What type of triangle has side lengths 9, 10, and √130? A. obtuse B. not a triangle C. acute D. right
EastWind [94]

Answer: Option C.

Step-by-step explanation:

The lengths of our triangle are:

9, 10 and √130.

If the triangle is a triangle rectangle, by the Pitagoream's theorem we have:

A^2 + B^2 = H^2

in this case H is the larger side, this must be √130.

then:

A and B must be 9 and 10.

9^2 + 10^2 = (√130)^2

81 + 100 = 130

This is false, so this is NOT a triangle rectangle, the hypotenuse is shorter than it should be.

Now, we have some kind of rule:

 if A^2 + B^2 = H^2 then we have one angle of 90° and two smaller ones. (triangle rectangle)

 if A^2 + B^2 > H^2 then all the angles are smaller than 90°, this is an acute triangle.

 if A^2 + B^2 < H^2 then we have one angle larger than 90°, this is an obtuse angle.

(H is always the larger side, A and B are the two shorter ones).

In this case:

81 + 100 > 130

Then this must be an acute angle.

3 0
3 years ago
If w=the weight of a trout, which algebraic expression represents the phrase below?
ivann1987 [24]

Answer:

A

Step-by-step explanation:

The only option with multiplication represented is A.

6 0
3 years ago
-845 degree coterminal angle
meriva
Check the picture below.

with negative angles, we go "clockwise", the same direction a clock hands move.

so -360-360-125 = -845.

so as you see in the picture, you go around twice, and then a little bit more, an extra 125°, landing you at -125°, or its positive counterpart, 235°.

6 0
3 years ago
Other questions:
  • I need help please. <br> Second box= feet or square feet
    13·2 answers
  • Dana randomly selected ten different brands of soda and recorded the number of calories in a 12 ounce serving size. They were as
    11·1 answer
  • Harold uses a cone shaped feeder, with a diameter of 7.5 centimeters and a height of 3.5 centimeters, to feed his tropical fish.
    15·2 answers
  • What is the value of x that makes the equation true? 3(4x - 2) - 5x = 6 - 7(-x - 2)
    5·1 answer
  • Sam uses 2/3 cup of sugar to make cookies. How many cups will Sam use to make five batches. Write your answer in two ways. Impro
    9·1 answer
  • *PLEASE ANSWER!!!, ILL GIVE BRAINLIEST*
    10·2 answers
  • Find the length of the missing side. Give your answer in the simplest radical form.
    5·2 answers
  • Find area,of the triangle <br>digits only. I counted the lines, 7 and 12 ÷2. and it was wrong ​
    10·1 answer
  • 5/11x -11/6 pleaseeeee helpp
    13·2 answers
  • The average of five numbers is 790.6. If the first four numbers are 80.2, 91.6,123,and 204.7,what is the sum of the five numbers
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!