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icang [17]
3 years ago
10

Factor this question completely

Mathematics
1 answer:
ratelena [41]3 years ago
6 0

Answer:

3b(3a+7c) i used mathpapa.com

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Find the domain of the function
Svetradugi [14.3K]

Answer:

<em>The domain of f is (-∞,4)</em>

Step-by-step explanation:

<u>Domain of a Function</u>

The domain of a function f is the set of all the values that the input variable can take so the function exists.

We are given the function

f(x)=\frac{1}{\sqrt{4-x} }

It's a rational function which denominator cannot be 0. In the denominator, there is a square root whose radicand cannot be negative, that is, 4-x must be positive or zero, but the previous restriction takes out 0 from the domain, thus:

4 - x > 0

Subtracting 4:

- x > -4

Multiplying by -1 and swapping the inequality sign:

x < 4

Thus the domain of f is (-∞,4)

7 0
2 years ago
Two towns that are 31.5km aprt are 3cm apart on a map what is the scale of the map
mel-nik [20]
3 cm on the map represents 31.5 km in reality.

3cm : 31.5 km

1cm :  31.5/3 km

1cm : 10.5km

So the scale on the map is 1cm represents 10.5 km.
8 0
3 years ago
Read 2 more answers
How do i expand 4(3x 5)?
Sloan [31]
4(3x 5) multiply everything by 4 12x+20
3 0
3 years ago
Help PLEASE ive been stuck on this forever!
AlekseyPX

Answer:

1/5

Step-by-step explanation:

2/10=1/5

4 0
3 years ago
What is the cost of a $19,500 plus a 6% sales tax?
vova2212 [387]
1% of 19,500= 195

6% = 1%x6 = 195x6 = 1170

19500+1170=20670
3 0
3 years ago
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