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Shtirlitz [24]
3 years ago
14

What is a 33333333...2222

Mathematics
1 answer:
pshichka [43]3 years ago
6 0
Are you sure that is a real question

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Which of the following sets is NOT closed under addition.
Veronika [31]

Answer:

Step-by-step explanation:

The odd numbers.

Suppose you have 31 and 27 when you add these two together, you get 58 which is not an odd number.

If you need a more mathematical proof, you could do it this way.

2x+1

2x is even. Anything multiplied by 2 is even. When you add 1 you get an odd number

So continue on

2y + 1 is the other number.

2x + 1 + 2y + 1 = 2(x + y) + 2

2 (x + y ) is even. When you add 2 to it, nothing changes. The result is still even.

7 0
3 years ago
ABCD∼EFGH AD=45 in. , EH=75 in. , and AB=30 in. What is EF ?
Marrrta [24]
EF = 50 in.

In similar figures, corresponding sides are proportional.  We use the similarity statement ABCD~EFGH to write a proportion:

\frac{AB}{EF}=\frac{AD}{EH}
\\
\\ \frac{30}{x}=\frac{45}{75}

Cross multiply the proportion:
45*x = 75*30
45x = 2250

Divide both sides by 45:
45x/45 = 2250/45
x = 50
3 0
3 years ago
15. What is 3% of 4.14 x 10?
Slav-nsk [51]

Answer:

the answer is a and I hope this helps you.

5 0
2 years ago
Read 2 more answers
A Cessna 185 files an average of 208 km in one hour how many meters can the cessna fly in one hour?
Sonja [21]

This is quite basic actually,

208 kmh equals 208,000 meters per hour

This is because a km equates to 1000 meters.

8 0
3 years ago
Please answer -w- i really need help lol online school is kinda hard.
Yuliya22 [10]

Answer:

518.7

Step-by-step explanation:

8 0
3 years ago
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