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Ilya [14]
3 years ago
15

Write two different ways to decompose 6/10 into a sum

Mathematics
1 answer:
Papessa [141]3 years ago
8 0
3/10 + 3/10

2/10 + 2/10 + 2/10

5/10 + 1/10

6/20 + 6/20
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For what value of x will 55 and x have the mean (average) as 67
AlekseyPX
If (55 + x)/2 is to be 67, then 55+x = 2*67, so x = 2*67 - 55 = 79
4 0
3 years ago
Read 2 more answers
Let Ebe the set of all even positive integers in the universe Zof integers, and XE : Z R be the characteristic function of E.
AnnZ [28]

Answer:

\mathbf{X_E (2) =  1}

\mathbf{X_E (-2) = 0 }  

\mathbf{\{ x \in Z: X_E(x) = 1\}  = E}

Step-by-step explanation:

Let E be the set of all even positive integers in the universe Z of integers,

i.e

E = {2,4,6,8,10 ....∞}

X_E : Z \to R be the characteristic function of E.

∴

X_E(x) = \left \{ {{1 \ if  \ x \ \  is \ an \ element \ of \ E} \atop {0 \ if  \ x \ \  is \ not \ an  \ element \ of \ E}} \right.

For XE(2)

\mathbf{X_E (2) =  1}  since x is an element of E (i.e the set of all even numbers)

For XE(-2)

\mathbf{X_E (-2) = 0 }   since  - 2 is less than 0 , and -2 is not an element of E

For { x ∈ Z: XE(x) = 1}

This can be read as:

x which is and element of Z such that X is also an element of x which is equal to 1.

∴

\{ x \in Z: X_E(x) = 1\} = \{ x \in Z | x \in E\} \\ \\  \mathbf{\{ x \in Z: X_E(x) = 1\}  = E}

E = {2,4,6,8,10 ....∞}

5 0
3 years ago
You have $270 in your bank account. You plan to save $80 from your paycheck each week. Which graph shows your bank account balan
elixir [45]
Y=80x+270
If you want to know how to do it just let me know
7 0
3 years ago
Read 2 more answers
Please help I give lots of points.
Minchanka [31]

Answer:

I believe your answer is z5√z the fourth option


7 0
3 years ago
Please help me I need to submit this asap
frez [133]

Answer:

D

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here { a, b ] = [ - 1, 2 ], thus

f(b) = 4 ← from (2, 4 )

f(a) = \frac{1}{2} ← from (- 1, \frac{1}{2} ) , thus

average rate of change = \frac{4-\frac{1}{2} }{2-(-1)} = \frac{\frac{7}{2} }{3} = \frac{7}{6} → D

8 0
3 years ago
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