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
Elodia [21]
3 years ago
12

Find the area of the sector (shaded part). Round to the nearest hundredth! No links!!

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
6 0

Answer:

~183.78

Step-by-step explanation:

A = pi 9² ≈254.47

260/360=13/18

254.47/18×13≈183.78

You might be interested in
Need help with this question , pls help
notka56 [123]

Answer:

A = 80g B = 200g

Step-by-step explanation for A:

First, you would find what the serving size is divided by to get the number of people needed to feed 6/3 = 2. Then take that number (3) and divided it by the fish (240g) to get 240/3 = 80.

Step-by-step explanation for B:

You will first need to find how much butter goes into ONE pie by dividing 80 by 6 which is 1.33333333333333. Then do 1.333333333333333 times the number of people to feed (15) to get 200.

8 0
2 years ago
A radio telescope has a parabolic surface, as shown below.
krek1111 [17]
OK, so the graph is a parabola, with points x=0,y=0; x=6,y=-9; and x=12,y=0

Because the roots of the equation are 0 and 12, we know the formula is therefore of the form

y = ax(x - 12), for some a

So put in x = 6

-9 = 6a(-6)

9 = 36a

a = 1/4

So the parabola has a curve y = x(x-12) / 4, which can also be written y = 0.25x² - 3x

The gradient of this is dy/dx = 0.5x - 3

The key property of a parabolic dish is that it focuses radio waves travelling parallel to the y axis to a single point. So we should arrive at the same focal point no matter what point we chose to look at. So we can pick any point we like - e.g. the point x = 4, y = -8

Gradient of the parabolic mirror at x = 4 is -1

So the gradient of the normal to the mirror at x = 4 is therefore 1.

Radio waves initially travelling vertically downwards are reflected about the normal - which has a gradient of 1, so they're reflected so that they are travelling horizontally. So they arrive parallel to the y axis, and leave parallel to the x axis.

So the focal point is at y = -8, i.e. 1 metre above the back of the dish.
5 0
2 years ago
Please helppppppppppppppppp
Anika [276]
The answer will be 40. As it doubles twice during 220mins- 10 to 20 and then 20 to 40.
8 0
3 years ago
To find the quotient 3/4 divided by 1/8
vfiekz [6]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
If equation two is multiplied by -2 and then the equations are added, the result is
LUCKY_DIMON [66]

Answer: Yes, this is true but it can be a different answer.

8 0
3 years ago
Other questions:
  • What is the Factor of 4х2 - 100
    13·1 answer
  • The ordered pair (-3, -2) would be found in quadrant
    7·2 answers
  • A distributive property for 7 times 63
    9·2 answers
  • HELP ASAP ILL GIVE BRAINLIEST AND EXTRA POINTS
    7·2 answers
  • if employee a logged 120 hours of travel in four years and employee b logged of travel at a 20% higher rate how many more hours
    7·1 answer
  • 9.50 dollars the hour times 14.5 hours
    7·1 answer
  • majorie bought a bed with a sticker price of 1800. if she paid $25 a week for two years, what was the approximate markup on the
    6·1 answer
  • The triangular pyramid shown is made up of four congruent triangles. The length of the base is 8 inches, and the height of the b
    13·1 answer
  • PLSSS HELPP SOOON BRAINLIESTTT
    15·1 answer
  • Find the real number X and y such that 3x + 2iy ix+ 5y = 7+5i​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!