. Jeremy needs to mail five Christmas packages to his family. The first two weigh 3, pounds each and the
other three weigh 2 pounds each. If two-day shipping costs $0.37 per ounce and ground shipping
costs $0.30 per ounce, how much will he save by shipping all of his packages by ground rather than
two-day?
F.
G.
H.
J.
$1.26
$15.68
$15.05
$14.42

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.

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees