Answer:

Step-by-step explanation:
×
6 x 6 = 36
4 + 3 = 7 (add exponents because its multiplication)
Answer:
x² - 2x - 2
By Completing the Square....
x² - 2x + 1² - 2 - 1²
(x - 1)² - 3 .....
Hope it helps.
Answer:
B or C
I forcibly pick C because it makes sense so just pick C
Step-by-step explanation:
Answer:
40/9
Step-by-step explanation:
Use the work formula,
+
=
, where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.
Plug in the times for David and Alex alone:
+
= 
Find the least common denominator, which is 40.
+
= 
= 
Cross multiply and solve for T:
9T = 40
T = 40/9
So, if they worked together, it would take them 40/9 hours
Answer:
i.900
j.6
k.8
l.0
Step-by-step explanation:
hope this helps you ;)