Answer:
-13
Step-by-step explanation:
2x²+26x+156=0
x²+13x+78=0
x²+13x=-78
x²+13x+169/4=-143/4
(x+13/2)²=-143/4
x+13/2=(i√143)/2 or x+13/2=-(i√143)/2
x=(i√143)/2-13/2 or x=-(i√143)/2-13/2
(i√143)/2-13/2+(-(i√143)/2)-13/2=(i√143-13-i√143-13)/2=-26/2=-13
Answer:
approximately 35.9
Step-by-step explanation:
(5+44+182-20-10)÷(2+5)
(99+182-20-10)÷(7)
(281-20-10)÷(7)
(261-10)÷÷(7)
(251)÷(7)
approximately 35.9
Answer:
A and B
Step-by-step explanation:
Since these both only have one term and number/variable, making it a monomial.
It is 9/10 as the others are too small
C option is correct. Because out of 10 toys 1 is defective. So 10 will be defective out of 100 and 100 will be defective out if 1000 i.e the monthly production.
