For the concentric circles shown, the radius of the inner circle is 3 centimeters and the distance from the

Mathematics

1 answer:

Tema [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Area of the inner circle = 3^2 π = 9 π

total area = 10^2 π = 100π

area of the shaded region

100π - 9 π = 91 π

You might be interested in

The graph below shows the distances, in miles, that a dragonfly can travel in a certain number of hours:

Y_Kistochka [10]

Ur independent variable is ur x values....ur dependent variable is ur y values..so if hrs are on the x axis, then ur independent values are ur hrs (or time)....and ur dependent values are ur distance.

(0,0),(2,50)
slope = (50 - 0) / (2 - 0) = 50/2 = 25

y = mx + b
slope(m) = 25
and since u have point (0,0), ur y int (b) = 0
so ur equation is y = 25x + 0 which is written as y = 25x...which is basically saying that he travels 25 miles per hr

how far will he travel in 24 hrs.....so sub in 24 for x
y = 25(24)
y = 600 miles

in summary : The dependent variable is distance, the equation is y = 25x and the dragonfly will fly 600 miles.

8 0

3 years ago

Read 2 more answers

2. What is the slope in this equation? y =2x +1 y 2 х 1

Neporo4naja [7]

Answer:

the slope equals 2. otherwise known as the coefficient of x.

5 0

3 years ago

I only have 8 minutes left please help!!! The expression h(x)= -5x2 + 25x + 70 can be used to estimate the height(h), in meters,

rewona [7]

Hence x is 7 seconds

8 0

3 years ago

Determine la razón de la siguiente progresión geométrica: 81,27,9,3,1,....

worty [1.4K]

Answer:

BẠN BỊ ĐIÊN À

Step-by-step explanation:

CÚT

5 0

3 years ago

24 written as a percentage

Yanka [14]

Any number is equal to that number over 1

So x is equal to x/1

Same thing with 24. 24 = 24/1

To get it into percent we multiply by 100 so:

$\sf{\frac{24}{1}=\frac{24\times100}{1\times100}}$

And simplifying that we get

$\sf{\frac{2400}{100}}$

And x/100 = x%

so 2400/100 = 2400%

So your answer is 2400% :)

5 0

3 years ago