b. What is the best prediction of the number of defective strings of lights in a delivery of 400 strings of lights?
What’s the answer for this question in factoring form
Answer:
Solution set= {(3,-9)}
Step-by-step explanation:
x² +6x-27=0
x² +9x-3x-27=0
x(x+9) -3(x+9)=0
(x-3)(x+9)=0
x-3=0; x+9=0
x=3; x=-9
Answer:
Mason's and Eric's
Step-by-step explanation:
We are given that:
Olivia has 18 marbles ,Mason has 24 marbles,Nia has 63 marbles,and Eric has 75 marbles.
Each person packed their marbles in groups of 9.
We have to find who will have marbles left over.
Olivia has 18 marbles which can be packed as (9+9=18)
Mason has 24 marbles which can be packed as (9+9=18 and 6 will be left unpacked)
Nia has 63 marbles which can be packed as (9+9+9+9+9+9+9=63)
and Eric has 75 marbles which can be packed as (9+9+9+9+9+9+9+9=72 and 3 will be left unpacked)
Hence, Mason's and Eric's marbles are left unpacked