MATHEMATICS MIDDLE SCHOOL

49.4if f(x) - x-3/x and g(x) = 5x – 4, what is the domain of (fºg)(x)?
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Answers

Answer 1
Answer:

Answer:

domain is set of all real number except 4/5

Step-by-step explanation:

f(x)= (x-3)/(x)

g(x)=5x-4

Now we find (fºg)(x)

(fºg)(x)=f(g(x))

We plug in g(x) inside in f(x)

f(g(x))=f(5x-4)= ((5x-4)-3)/(5x-4)

Now simplify the numerator

f(g(x))=((5x-4)-3)/(5x-4)=(5x-7)/(5x-4)

To find out domain we set the denominator =0 and solve for x

5x-4=0

Add 4 on both sides

5x=4

Divide both sides by 5

x=(4)/(5)

So domain is set of all real number except 4/5
Answer 2
Answer:

Answer:

Answer:

{x ∈ R ∣ x ≠ 4/5}

Step-by-step explanation:

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How do I find x if 37-91+3x=42

Answers

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    +91      +91
____________
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The owner of a dress shop ordered 33 dresses from a new designer. The designer's dresses now make up to 30% of all dresses in the shop. How many dreses are in the shop in all?

Answers

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-----= ----
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A kilogram of whole- wheat flour cost $6. what is the cost of 400 grams of the flour?

Answers

As you know, 1kq=1000g

To simplify the problem, we should get the amount of money 200g of flour will cost.

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I don’t understand this!!! Can someone please explain it to me? ASAP! Thank you all even if you don’t know how to do it

Answers

Answer:

615.6

Step-by-step explanation:

First find the number of cubic feet.

V = B * h

B is a triangle with a right angle on your left and two 6 foot lengths on each leg.

Area = 1/2 b * h

b = 6 feet

h = 6 feet

Area = 1/2 * 6 * 6 = 18 square feet.

The volume = B * h

h = 11.4

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Volume = 205.2 Cubic Feet.

Each cubic foot costs 3.00 dollars

Cost = volume * cost/cu foot

Cost = 205.2 * 3

Cost = 615.6

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