Answer:
Jose's solution is not correct, the auditorium has 
rows
Step-by-step explanation:
we have
where
f(x)------> is the total number of seats in an auditorium
x----> represents the number of rows
How many rows are there in the auditorium if it has a total of 416 seats?
Find the value of x for f(x)=416 seats
substitute the value of f(x) in the equation
Using a graphing calculator
The values of x are 
The solution is
x=16 rows because the number of rows can not be a negative number
Answer:
$981
Step-by-step explanation:
Answer:
Step-by-step explanation:
(x-5)(2x+4)
use FOIL , Countess
First, Outside, Inside, Last FOIL
= 2x*x +4*x -5*2x -5*4
= 2
+ 4x -10x -20
= 2 -6x -20
Answer:
1/4 donut
Step-by-step explanation:
Since there are four sections for one donut, the equation would be 1/4
Answer:
see explanation
Step-by-step explanation:
The volume (V) of wood used is calculated as
V = volume of cone - volume of cylinder
V = 
πr²h - πr²h
diameter of cone = 12, so radius = 12 ÷ 2 = 6
V = π × 6² × 14 - π × 4² × 3
= π × 36 × 14 - π × 16 × 3
= π × 12 × 14 - 48π
= 168π - 48π
= 120π cm³
