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3 years ago

Need help on 11 and 13 please

Mathematics

2 answers:

Arturiano [62]3 years ago

3 0

Answer:

11. 15x + 6

11. b x + 8 - 16

13. 7x + 31

777dan777 [17]3 years ago

3 0

Answer:

11 A: x15 + 6

11 B: (x + 8) - 16

13: 7x + 31

Step-by-step explanation:

12x + 23 − 5x + 8

= 12x + 23 + −5x + 8

Combine Like Terms

= 12x + 23 + −5x + 8

= (12x + −5x) + (23 + 8)

= 7x + 31

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Read 2 more answers

The plot below shows the graphs of three functions, f, g, and h, all of which determine the population of three different cities

monitta

So, here we have an exponential function.

Remember that an exponential function has the form:

$y=a(b)^x=a(1\pm\frac{r}{100})^x$

Where a represents an initial amount, and r is the rate of this amount to change. (Increase, or decrease).

So, given that the population of City A in 2000 was 40 thousand people and the population increased by 13% each year, we can say that

$\begin{gathered} a=40 \\ b=1+\frac{13}{100}=1.13 \end{gathered}$

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But something different happens with city C. This is not an exponential function, this is a linear function.

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