Answer:
B. reflection about the origin
Explanation:
When we look at this figure, we can see that this is not a 90 degree rotation in any direction; this would turn the figure 90 degrees, which would move the image in Quadrant II to either Quadrant I or Quadrant III instead of Quadrant IV.
A reflection across the x-axis will negate the y-coordinate, moving the image either directly above or directly below the pre-image. This is not the case, so this is not a reflection across the x-axis.
In a reflection about the origin, both the x- and y-coordinates are negated; this is the same as a 180 degree rotation. This would move the pre-image to match the image.
Answer:
1
Step-by-step explanation:
2(0)(4)(1/2) ÷ 4 + 2(1/2)
(0)(4)(1/2) ÷ 4 + 2(1/2)
(0)(1/2) ÷ 4 + 2(1/2)
0 ÷ 4 + 2(1/2)
0 + 2(1/2)
0 + 2/2
0 + 1
1
Answer:
1
Step-by-step explanation:
Firstly we need to do the exponent,3^-1, which equals 1/3.
Now, we multiply 3 with 1/3.
3•1/3 =1
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°
Answer:
the number of protons identifies what element it is, since it has 35 protons it is Bromine
number of protons=atomic number