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
marysya [2.9K]
3 years ago
9

The formula for the area of a sector with a central angle in radians is ?

Mathematics
1 answer:
zlopas [31]3 years ago
4 0
S= \frac{r^2*\alpha}{2}

You might be interested in
What is the measure of the greatest angle of a triangle if the side lengths are 21m, 23m, and 25m
docker41 [41]
CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08

8 0
3 years ago
What is the area of this trapezoid?
son4ous [18]
Its C)126in I think because top base is 16, bottom base is 12 and the height is 9. 

5 0
3 years ago
Solve the linear equation:<br><br> 3.4 + 2(9.7 – 4.8x) = 61.2
Ganezh [65]

Answer:

- 4

Step-by-step explanation:

(2*(Rationalize(9.7)-Rationalize(4.8x)))==Rationalize(61.2)-Rationalize(3.4)

Rationalize(18.4)-Rationalize(2.8x)

==Rationalize(57.8)

-Rationalize(2.8x)==Rationalize(57.8)-Rationalize(18.4)

x= 38.4÷-2.8

:x= -4

7 0
3 years ago
Kamilah spends $130.00 to buy a shower gel and lotion set for each of her friends for Christmas. Each shower gel cost $12.50 and
Mila [183]

Answer:

use photo math plz mark me brainlisist

Step-by-step explanation:

6 0
2 years ago
Triangle ABC had a perimeter 18 cm
Alex

Step-by-step explanation:

what is the main condition the lengths of the sides of a right-angled triangle have to fulfill ?

Pythagoras !

c² = a² + b²

c is the Hypotenuse (the baseline opposite of the 90 degree angle), a and b are the so-called legs (the sides enclosing the 90 degree angle).

only if there is a combination of the sides, for which the Pythagoras equation is true, do we have a right-angled triangle. otherwise not.

we also know CA = 18 - 7 - 3 = 8 cm

so, let's try

8² = 7² + 3²

64 = 49 + 9 = 58 wrong

7² = 8² + 3²

49 = 64 + 9 = 73 wrong

3² = 8² + 7²

9 = 64 + 49 = 113 wrong

so, there is no combination, where the Pythagoras equation is true, so it is NOT a right-angled triangle.

4 0
3 years ago
Other questions:
  • Please help with these math comparisons!? explain
    9·1 answer
  • The difference of two numbers is equal to 0.6. Their quotient is also 0.6. What are the numbers?
    7·1 answer
  • Explain how 2 ones is the same as 20 tenths
    9·1 answer
  • project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability dis
    15·1 answer
  • What type of algebra is 3.75(18) + 4.25(32) = 316
    11·2 answers
  • How do tou do it I xo not under stand
    14·1 answer
  • What property does the number sentence show 8+0=8
    7·2 answers
  • (08.01)Edgar and Rebekah are surveying their neighbors about the community pool. Their questions, written on the survey, are bel
    10·1 answer
  • Explain how you find the volume of the loaf of bread.
    13·2 answers
  • For which distributions is the median the best measure of center? Select each correct answer. Y 20 30 18 25 16 20 14 15+ 12 10+
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!