F(x)=5/x-1 g(x)=4-2x Calculate fg(x)

Mathematics

1 answer:

Leno4ka [110]1 year ago

5 0

Answer:

Step-by-step explanation:

define function fg(x) :

Fg(x) = f(g(x))

= $\frac{5}{x}$ (4-2x)-1

= $\frac{20}{x}$ - $\frac{10x}{x}$ - 1

= 20 - 10x -1

= 20 - 1 - 10x

= 19 - 10x

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Marco starts with a population of 10 bacteria that doubles every day for a number of days, d. He writes the expression 10(2d) to

riadik2000 [5.3K]

Answer:

Marco- 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent.

Isabella- 1 is the starting population. 1+0.2=1.2 is the rate at which it grows each day.

Step-by-step explanation:

Marco's equation should be $10(2^{d})$ since the bacteria double each day. 10 is the starting value of the population. 2 is the growth rate of "double each day" with d as an exponent. This will double each day because:

Day 1 is $2^{1}=2$

Day 2 is $2^{2}=4$

Day 3 is $2^{3}=8$

Day 4 is $2^{4}=16$

You'll notice the value doubles each day.

Isabella has a different equation because her population increases by a percentage. We use the simple interest formula to calculate the bacteria's daily increase or interest.

1(1+0.2)d

1 is the starting population.

1+0.2=1.2 is the rate at which it grows each day.

3 0

3 years ago

Read 2 more answers

Can someone help me with number 3 pls

sergejj [24]

Answer:

hypothesis

Step-by-step explanation:

If <em>hypothesis</em> then <em>conclusion</em>