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kirill [66]
3 years ago
13

 Ill Mark Brainliest if you answer correctly. The figure below shows a shaded circular region inside a larger circle:

Mathematics
1 answer:
pogonyaev3 years ago
8 0

First we have to find the areas of both circle using the formula

Area = \pi r^2

For larger circle,

Area=  \pi(5)^2 = 25 \pi

For smaller circle,

Area = \pi (4)^2 = 16 \pi

Required probability

= \frac{25 \pi -16 \pi}{25 \pi} *100 = \frac{9}{25}*100 = 36%

Correct option is the second option .

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A triangle has a perimeter of 32 inches. The medium side is 2 more than the short side, and the longest side is 3 times the leng
MatroZZZ [7]

Answer:

6

Step-by-step explanation:

6+(6+2)+(6×3)=32

32÷(1+1+3)=6•••••2

So it's 6 and 6+2 and 6 times 3

which is 5 of number 6 plus 2

=6+(6+2)+(6×3)

=6+8+18

=32

7 0
3 years ago
When two numbers are added together,their sum is 6750.The difference between the two number is 250.Find the larger number.
dimaraw [331]
Bigger number is 3625 and smaller number is 3125
8 0
3 years ago
Solve y=-3x² + 4.5x – 20<br> Use the Quadratic formula
statuscvo [17]

Answer:

x=0.75 \pm 2.47067i

Step-by-step explanation:

Quadratic Formula: x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}

√-1 is imaginary number i

Step 1: Define

y = -3x² + 4.5x - 20

a = -3

b = 4.5

c = -20

Step 2: Substitute and Evaluate

x=\frac{-4.5 \pm \sqrt{4.5^2-4(-3)(-20)} }{2(-3)}

x=\frac{-4.5 \pm \sqrt{20.25-240} }{-6}

x=\frac{-4.5 \pm \sqrt{-219.75} }{-6}

x=\frac{-4.5 \pm \sqrt{219.75}(\sqrt{-1} ) }{-6}

x=\frac{-4.5 \pm i\sqrt{219.75} }{-6}

x=\frac{4.5 \pm i14.824 }{6}

x=0.75 \pm 2.47067i

7 0
3 years ago
What number is 2/10 of 20
I am Lyosha [343]

Answer:

2/10 * 20 = 4.

hope it helps

6 0
3 years ago
Read 2 more answers
4 - -9
Svetradugi [14.3K]

Answer:

13

Step-by-step explanation:

a negative plus a negative makes a positive

3 0
3 years ago
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