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noname [10]
3 years ago
6

EASY QUESTION Find area and please show working out

Mathematics
1 answer:
vekshin13 years ago
8 0
Area of a semi-circle = 1/2 x x r square.

area of larger semi circle
= 1/2 x x 10 square
= 50

area of smaller semi circle
= 1/2 x x 5 square
= 12.5

Total area = 50 + 12.5 = 196 cm square ( to 3 sf ) or 62.5
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What is BC ?<br><br> Enter your answer in the box.
stiks02 [169]
Mathematically it would be 8 since BE=CE and CE=4. 
5 0
3 years ago
How many 6-digit numbers can be created using8, 0, 1, 3, 7, and 5 if each number is used only once?
Ludmilka [50]

Answer:

600 numbers

Step-by-step explanation:

For six-digit numbers, we need to use all digits 8,0,1,3,7,5 each once.

However, 0 cannot be used as the first digit, because it would make a 5-digit number.

Therefore

there are 5 choices for the first digit (exclude 0)

there are 5 choices for the first digit (include 0)

there are 4 choices for the first digit

there are 3 choices for the first digit

there are 2 choices for the first digit

there are 1 choices for the first digit

for a total of 5*5*4*3*2*1 = 600 numbers

6 0
3 years ago
Estimate what is 130% of 20. Show work please! I need the right answer!
aksik [14]
26 would 130% of 26%. 

20 would be 100% of itself leading us to X being 130%. 
That brings us to two equations of 20=100% and x=130%
20/x=100%/130%

20/x=100/130
(20/x)*x=(100/130)*x
20=0.769230769231*x
26/0.769230769231=x
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3 0
4 years ago
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Leni [432]

Answer: 1058176

check:

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3 years ago
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Answer: its A

Step-by-step explanation:

6 0
3 years ago
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