I need this as soon as possible. this is Algebra 2.

According to a popular, but untrue, urban legend, oceanographers have discovered images of giant pyramids made of crystal-like substances deep in the ocean. Suppose one of these imaginary pyramids has the dimensions shown at the right.

The volume V of a pyramid is 1/3 Bh where B is the area of the base and h is the height of the pyramid.

Part A
Find an equation that represents V in terms of x. Then find x in terms of V. Write your equation for x in
rational exponent form, and rationalize denominators where necessary. Show your work

Part B
Suppose a pyramid has a volume of 2,000,000 m^3. What is the height x of the pyramid? Show your
work

Part C
Suppose the urban legend were true, and a contractor could be hired to raise one of these pyramids and bring it to the surface of the ocean The estimated cost of the operation c(x) is $200,000 per meter of pyramid height with an additional cost a(v) of $300 per cubic meter of pyramid volume. What is an equation that represents the total retrieval cost t for a pyramid of any volume with these proportions in terms of x? How much would it cost to excavate this pyramid? Show your work.

Your answer would be in part C

Step-by-step explanation:

id

step-by-step explanation:

idk

idk

i know the way

and

idk

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 ☺