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Lunna [17]
2 years ago
9

15 points!!!! Answer is needed in 5 minutes plz help

Mathematics
1 answer:
Archy [21]2 years ago
3 0
The radii of the circle increases by 7.5 cm each ring: 7.5 cm, 15.0 cm, 22.5 cm, and 30.0 cm.
The area if the red target is the area of the largest circle minus the second to the largest circle plus the area of the third largest circle minus the area of the smaller circle
A=pi(30.0)^2 - pi(22.5)^2 + pi(15.0)^2- pi(7.5)^2
A=900pi-506.25pi+225pi-56.25pi
A=562.5pi is approximately 1767 cm^2
You might be interested in
A recipe for French toast that serves 6 calls for 3/4 cup granulated sugar, 1 cup of evaporated milk, 1/3 teaspoon of vanilla, a
maxonik [38]
To serve 3 you half the recipe so divide each number by 2

3/4 cup/2 = 3/8 cup granulated sugar

1 cup/2 = 1/2 cup of evaporated milk

1/3teaspoon/2 = 1/6 teaspoon of vanilla

12 slices/2 = 6 slices of French bread


3 0
3 years ago
In her piggy bank, caitlin has 5.24 dollars the sum is made up of an equal number of four coins from 1 cent, 5 cents, 10 cents,
Ludmilka [50]

Answer:

1c, 5c, 25c and 1 dollar

Step-by-step explanation:

With 4 coins of 1c : 4 cents

4 coins of 5c: 20 cents

4 coins of 25c: 1 dollar

4 coins of 1 dollar: 4 dollars

So, 4c + 20c + 1 dollar + 4 dollars = 5.24 dollars

3 0
2 years ago
(x-1)2 + (y + 3)2 = 73<br> What is the center ?
Olenka [21]

Answer:

centre = (1, - 3 )

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x - 1)² + (y + 3)² = 73 ← is in standard form

with (h, k ) = (1, - 3 ) ← centre

3 0
2 years ago
Twin brothers, Kenny and Isaiah, live in Small Town, USA where it snows an
Morgarella [4.7K]

Answer:

the answer would be maybe 20 minutes

8 0
2 years ago
What is the dilation for the transformation below?​
lys-0071 [83]

Answer:

The dialation is of 2

Step-by-step explanation:

QR = 3 units

QS = 2 units

RS = 2 units

Q'R' = 6 units

Q'S' = 4 units

R'S' = 4 units

So as you can see, this triangle has doubled it's size, since it has been multiplied by 2.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

4 0
2 years ago
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