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Damm [24]
3 years ago
9

Pls help me solve these questions. I don't understand them.​

Mathematics
1 answer:
myrzilka [38]3 years ago
3 0

Answer:

first number is 3

second number is 7

check3+7=10

9+49=58

do the second

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5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

5\sqrt{28} +\sqrt{63} = 13\sqrt{7} = 34.3948

3 0
3 years ago
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Evaluate the following -3- (-6)
kozerog [31]

Answer:

- 3 - ( - 6) \\  =  - 3 + 6 \\  = 3

Step-by-step explanation:

3 is correct answer

hope it helped you:)

6 0
4 years ago
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If a and b are events and b ⊂ a, why is it "obvious" that p(b) ≤ p(a)?
Masja [62]

Answer:

If a and b are two events such that:

b⊂a

Then it is obvious that p(b)≤p(a)

where p denotes the probability of an event.

<em>" Because as one event is contained in the other that means it has possibility to contain more favourable outcomes than the other while the probability of both the events is calculated by taking the total number of outcomes to be equal "</em>

Let us consider an <u>example</u> as:

We roll a die;

so the total outcomes are: {1,2,3,4,5,6}.

Now let b denotes the event that the number is an even number less than 5.

Number of favourable outcomes( {2,4} )=2

p(b)= 2/6

let a denotes that the number is less than 5.

Then Number of favourable outcomes( {1,2,3,4} )=4

p(a)=4/6

clearly b⊂a

also we could see that p(b)<p(a)



5 0
4 years ago
Please answer. :) ):) ) : ): ): ): ) :)
Irina18 [472]

Answer:

2/5, 8/20, 4/10,16/40

Step-by-step explanation:

40%

Percent means out of 100

40/100 = 4/10 = 2/5

Lets look at the choices

8/100 =4/50 =2/25  not equal

2/5  equal

8/20 = 4/10 =2/5 = equal

4/10 = 2/5 = equal

16/40 = 4/10 = 2/5 equal

4 0
3 years ago
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Jordin’s savings account balance is greater than 2 $27. Use absolute value to describe the balance as a debt. Jordin’s balance i
san4es73 [151]

Answer:

i don't have a idea

Step-by-step explanation:

8 0
3 years ago
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