The number of skateboards that can be produced by a company can be represented by the function f(h) = 325h, where h is the number of hours. the total manufacturing cost for b skateboards is represented by the function g(b) = 0.008b2 + 8b + 100. which function shows the total manufacturing cost of skateboards as a function of the number of hours?

Step-by-step explanation:

*The function g(b) shows the cost per b produced skateboards.

*The function f(h) tells us the number of skateboards produced as a function of time.

To find a function that shows the manufacturing cost of skateboards produced as a function of the number of hours we must find g(f(h)).

That is, we must introduce the function f(h) within the function g(b), making b = f(h)

So:

Finally, the function wanted is:

i dont know sorry

step-by-step explanation:

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺