Answer:
2.3 + (-2.4) = -.1
Step-by-step explanation:
adding a negative like this is the same 2.3 - 2.4 and subtracting 2.4 from 2.3.
4.002 it is very easy just put it in a calculator
B. to find the length of a missing side of a right triangle
Since I can't see the figure on the coordinate plane, I can't give you exact coordinates for you to plot to get Figure B or Figure C. But I can tell you the transformation rules for reflection across the y-axis and the 180 rotation around the origin.
Rule for reflection across y-axis
(x, y)
(-x, y)
For example: Point B in a sample figure has the coordinate point of (1,2) would have a point of (-1, 2) when reflected across the y-axis.
Rule for rotating 180 degrees
(x, y)
(-x, -y)
For example: Point C in a sample figure has the coordinate point of (3, 4) would have a point of (-3, -4) when rotating 180 degrees around the origin.
Answer:
Her answer is wrong because she the object cannot hit the ground at negative seconds. She could’ve have used other methods because she used the quadratic formula. The advantages is that it works for every situation. The disadvantages is that it takes longer. She should’ve used a different method.
Step-by-step explanation: