Vera needs to place 15 student volunteers at a local fire station. Five students will wash fire trucks, 7 will be assigned to paint, and 3 will be assigned to wash windows. What is the number of possible job
assignments, expressed using factorials and as a simplified number?

y=mx+b

step-by-step explanation:

m slope, b y-intercept

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

the answer is  

c.

14,469 cubic feet

i know this one is right

c and e

step-by-step explanation: c and e seem the most probable because a number less than 2 on a spinner with 4 equal sections would be 25% and e because all of the stacks contain 13 of that card.