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
AnnyKZ [126]
3 years ago
14

Help with the following problem please

Mathematics
1 answer:
Effectus [21]3 years ago
3 0
Given:
The largest circle has a radius of R=7 units.
Let x be the radius of the large shaded circle.
The small shaded circles have a radius of 1/5 of the large shaded circle.
=> the small shaded circles have a radius of r=x/5

By adding up radii, we have the equation
2(r+x+r)=2(x/5+x+x/5)=2R=2*7=14
Simplify:
7x/5=14/2
x=5
=> r=1

Area of outer circle                  = \pi R^2=\pi7^2=49\pi
Area of large shaded circle      = \pi x^2=\pi5^2=25\pi
Area of 4 small shaded circles = 4\pi r^2=4\pi1^2=4\pi
Total area of shaded circles     =25\pi+4\pi=29\pi

Shaded area as a fraction of that of the outer circle 
=\frac{29\pi}{49\pi}=29/49

You might be interested in
If a=2 , b=1 , d=4, then what must c = ?
trapecia [35]

duh obviously the answer is idk, and let me tell you why

Step-by-step explanation:

because when you add 2+4 and then it gives you 78 now you can square root that 78 and it will give you 8 and after that you get 8 of your fingers and play with yourself a little bit but not too much, therefore the answer is idk.

hope i was helpful

5 0
3 years ago
A blue whale, the largest mammal in the world, weighs 1.36 * 105 kilograms as an adult. An adult killer whale weighs about 4 * 1
sergejj [24]

Answer:

(1.36 × 10^{5}) - (4 × 10^{3}) = 132000kg

1.32 × 10^{5} kg = 1320000

7 0
2 years ago
Need help quick please
Alecsey [184]

Answer:

agree

Step-by-step explanation:

7 0
2 years ago
Need more help on this question
Bond [772]
79
hope this helped

8 0
2 years ago
Read 2 more answers
IF YOU ANSWER THIS ILL GIVE YOU BRAINLY-EST
kotykmax [81]

Answer:

it would be

The dependent variable is distance, the equation is y = 35x, and the dragonfly will travel 840 miles

Step-by-step explanation:

By the graph it can be seen that the distance a dragonfly can travel is dependent on the certain number of hours.

∴ Dependent variable  : Distance (on y axis)

The equation of straight line is given by :-

, here m is the slope of the line and c is the initial value of y at x=0.

From the given graph, the slope of the given line passing from (0,0) and (2,70) will be :-

Also, the value of y = 0 at x=0.

∴ The equation of the given line :

At x=24,  

∴  The dragonfly will travel 840 miles in 24 hours.

8 0
3 years ago
Other questions:
  • Solve log(2)(4x+8)=5
    10·1 answer
  • A ream of paper contains 500 sheets of paper.Norm has 373 sheets of paper left from a ream.Express the protion of a norm has a f
    10·1 answer
  • (AKS 24): The weights of a certain brand of pasta follow an approximately normal
    11·1 answer
  • Solve 3x + 7 = 3(x - 2)
    5·2 answers
  • How do i figure out from a already graphed graph what the equation​
    13·1 answer
  • Suppose the linear regression line y = 3.27x + 1.52 predicts the weight of a large dog, in pounds, x weeks after it is born. Abo
    13·1 answer
  • Mathematical problem solving skills can be important in everyday life. true or false.
    15·2 answers
  • 15x7x9=15x7x9 is what property
    14·1 answer
  • After being rearranged and simplified, which of the following equations could
    12·2 answers
  • In the 1970s, due to world events, there was a gasoline shortage in the United States. There were often long lines of cars waiti
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!