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tatyana61 [14]
3 years ago
14

Can the sum of two mixed numbers be equal to 2? Explain why or why not. plz help fast

Mathematics
2 answers:
Allushta [10]3 years ago
8 0
Yes. The alg<span>ebraic sum of a negative mixed number and other mixed number.</span>
-1 1/3 + x = 2 
<span>x= 2 + 1 1/3 </span>

<span>x = 3 1/3 </span>

So, the algebraic sum: (-1 1/3) + 3 1/3 = 2
dedylja [7]3 years ago
6 0
Let x and y be two positive mixed numbers. So,

x > 1 and y > 1

Therefore,

x + y > 1 + 1

x + y > 2

x + y can't be equal to 2, since the sum of both of them is always greater than 2.

I hope this helps. =)
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Answer:

a. N=25

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Step-by-step explanation:

Hello!

Using the attached data you need to calculate some statistics.

a) N

The sample size is listed under the first column "subject" You can see that 25 subjects qhere studied so N=25.

b.

The mean of set X is equal to X[bar]= ∑X/n= 1513/25= 60.52

∑X is listed in the second table.

c.

The mean of ser Y is Y[bar]= ∑Y/n= 2668/25= 106.72

∑Y is listed in the second table.

d.

Sum of Squares of set X SSx= ∑X²-[(∑X)²/n]= 91682-[(1513)²/25]= 115.24

e.

∑X*∑Y =1513*2668= 4036684

f.

SSxy= (∑X²-[(∑X)²/n]) * (∑Y²-[(∑Y)²/n])= (91682-[(1513)²/25]) * (286482*[(2668)²/25])= 202020.3296

g.

√(SSx*SSy)= √(115.24*1753)= 449.46

I hope you have a SUPER day!

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For what.. could you finish the question ?
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