Answer:
The answer would be -a
Step-by-step explanation:
In the examples,
5 + (-5) = 0
-1.33 + 1.33 = 0
THat means there will be a negative then a positive, or a positive then a negative.
INVERSE is the key word in this problem.
Answer:
Ali´s secret number is 13
Step-by-step explanation:
the answer is 39 because you need to divide.
Answer:
∠7 = 81°
Step-by-step explanation:
∠1 = ∠7
3x + 18 = 2x + 39
3x - 2x = 39 - 18
x = 21
∠7 = 2x + 39
∠7 = 2(21) + 39
∠7 = 42 + 39
∠7 = 81°
Given:
The figure shows the letter Z and four of its transformed images—A, B, C, and D.
To find:
Which of the following rules will transform the pre-image of Z in quadrant 2 into its image in quadrant 1?
Solution:
From the figure it is clear that the pre-image of Z in quadrant 2 and its image in quadrant 1 (image A) are the mirror image of each other along the y-axis.
It means the pre-image of Z in quadrant 2 reflected across the y-axis to get the image in quadrant 1.
If a figure reflected across the y-axis, then rule of transformation is

So, the rule
transform the pre-image of Z in quadrant 2 into its image in quadrant 1.
Therefore, the correct option is c.