For this case we have the following expression:
8 + 0 = 8
The sum has several properties.
One of them is the following one:
Neutral element: the sum has a neutral element that is 0. If you add 0 to any number the result is the same number.
Answer:
The property shown in the given expression is:
Neutral element.
If it doubles every 4 hours, in 12 hours you will have 3 doublings.
2 * 2 * 2 = 8
90*8 = 720 pounds of algae
Answer:
see below
Step-by-step explanation:
Angles 1 and 5 are both outside (not between) the parallel lines, so are "exterior" angles. Angle 1 is on the northwest corner of the intersection; angle 5 is on the southeast corner, so they are not "corresponding." Rather, they are "alternate".
The only answer choice properly describing the angles also properly shows their measure:
Alt Ext ∠s Thm
∠1 ≅ ∠5 = 150°
_____
Since the angles are equal, you can write the equation ...
45x -30 = 20x +70
25x = 100 . . . . . . . . . add 30-20x
x = 4 . . . . . . . . . . . . . divide by 25
We can substitute this value into the expression for angle 5:
20x +70 = 20·4 +70 = 150 . . . . . the angle measures are 150°
<span>By definition, lines are parallel if they have the same gradient (slope). Any horizontal line has a gradient of 0, so it is parallel to any other horizontal line</span>
Answer:
-2x
Step-by-step explanation: