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steposvetlana [31]
3 years ago
10

Is 1.999 an irrational number

Mathematics
1 answer:
Roman55 [17]3 years ago
6 0
Yes 1.999 is an <span>irrational number</span>
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Select the statement that correctly describes the solution to this system of equations.
jasenka [17]
Selection C is appropriate.

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3 years ago
For the real-valued functions f(x)=2x+1 and g(x)=sqrt(x-1), find the composition f o g and specify its domain using interval not
Anettt [7]

Answer:

fog = 2√(x-1) + 1

Domain = [1, \infty)

Step-by-step explanation:

Given the functions  f(x)=2x+1 and g(x)=sqrt(x-1), we are to find the composite function fog

fog = f(g(x))

f(g(x)) = f(√(x-1))

f(√(x+1)) means that we are to replace variable x in f(x) with the function √(x-1)

f(√(x-1)) = 2(√(x-1))+1

f(√(x+1)) = 2√(x-1) + 1

fog = 2√(x-1) + 1

<em>For the function to exist on any real valued function, then the function inside square root i.e x-1 must be greater than or equal to zero (x-1≥0)</em>

If x-1≥0

x≥0+1

x≥1

This means the range of variable x must be values of x greater than or equal to 1.

Domain = [1, \infty)

8 0
3 years ago
Factor the following expression: 16z+20
Evgen [1.6K]

Answer:

4z + 5

Step-by-step explanation:

16 and 20 are both dividable by 4, so you divide them both by four and then you have your answer

3 0
3 years ago
Read 2 more answers
How do you write 9.14 X 10^-5 in standard form?
soldi70 [24.7K]
.0000914

Since it is negative you go behind the .

so you would go 5 spaces behind the point

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What is the answer of |y-2|&gt;8
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y<-6 and y>10

Step-by-step explanation:

5 0
3 years ago
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