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elena55 [62]
3 years ago
14

Find the following. (Simplify your answers completely.)

Mathematics
1 answer:
STALIN [3.7K]3 years ago
6 0
1) f(x)=7x-8  and g(x) = 4-x: find f(g(x))

f(g(x)) = [7(4-x) -8] = -7x+20

Domaine of f(x)/g(x) = (7x-8)/(4-x)
this function is valid for all x≠4
<u />domaine = ]- ∞,4[ ∪ ]4, + ∞[<u />
You might be interested in
Madison starts with a population of 1,000 amoebas that triples in size every hour for a number of hours, h. She writes the expre
gtnhenbr [62]

Answer: The meaning of each term of the  Madison’s and Tyler’s expressions is mentioned below.

Step-by-step explanation:

Since, when Madison starts with a population of 1,000 amoebas that triples in size every hour for a number of hours, h.

That is, after 1 hour total number of amoebas = 3×1000 = 3^1\times 1000

After 2 hour,  total number of amoebas = 3×3000=3^2\times 100

After 3 hour, total number of amoebas = 3×9000= 3^3\times 1000

similarly, after h hours, total number of amoebas,

f(h) = 3^h\times 1000

where, 1000 is the initial population of amoeba 3 is the growth factor of population and f(h) is the population of amoeba after h hours.

Since, when Tyler starts with a population of 1 amoeba that  increases 30% in size every hour for a number of hours.

That is, after 1 hour total number of amoebas = (1+0.3)^1

After 2 hour,  total number of amoebas =  (1+0.3)^2

After 3 hour, total number of amoebas =  (1+0.3)^3

Similarly, after h hours, total number of amoebas,

f(h) =(1+0.3)^h

Where,  1 is the initial population of amoeba, 0.3 is the growth rate and 1.3 is the growth factor.


5 0
3 years ago
Read 2 more answers
11. Four less than a number tripled is the same number increased by ten.<br> What is the number?
Sphinxa [80]

Answer:

7

Step-by-step explanation:

first, we would set up an equation. let 3x-4 represent "four less than a number tripled". "a number" would be represented by x. let x+10 represent "the same number increased by 10".

set 3x-4 and x+10 equal to each other:

3x-4=x+10

next, we would solve this equation for x. first we would get the x together on one side of the equation. we would do this by subtracting x from both sides to remove it from the right side of the equation:

2x-4=10

then, we would get the 2x by itself. we would do this by adding 4 to both sides:

2x=14

finally, we would divide each side of the equation by 2 to find x:

x=7.

The number is 7.

8 0
3 years ago
Please help!!!!!!!!!
kotykmax [81]

10+6+9+13+7= 45

and divide it by 5

the answer is 9

8 0
3 years ago
Read 2 more answers
QUESTION 1 (3 points)
Darina [25.2K]
A) Increase. This is because the mean of the first two cars is smaller than the mean of all three cars.

b) Cannot be determined. Need more values.

c) Cannot be determined. Need more values.
7 0
3 years ago
D-2.8 divided by 0.2 = -14 solve the equation
ohaa [14]
(d-2.8)/0.2=-14
d-2.8=-14*0.2
d-2.8=-2.8
d=-2.8+2.8
d=0
7 0
3 years ago
Read 2 more answers
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