-4
15+-19
15 to 19 is 4
19 is the larger than 15 so since 19 is negative your answer will also be negative
C is the missing reason in this proof.
Answer:
Step-by-step explanation:
Subtract 6 from both sides:.
Subtract 1/2n from both sides:
Multiply 2 on both sides:
Divide both sides by 5
a.) The orientation of ABCD is clockwise, as is the orientation of A'B'C'D'. This means the transformation involves a even number of reflections (may be 0). The orientation of AB is North, and the orientation of A'B' is West, so a rotation of 90° CCW (or equivalent) is involved. We can find the point of intersection of the perpendicular bisectors of AA' and BB' (at (-1, -1)) to determine a suitable center of rotation.
ABCD can be transformed to A'B'C'D' by ...
- rotation 90° CCW about the point (-1, -1)
b.) Rotation by 90° can also be accomplished by reflection across a diagonal line. Since we want the orientation to remain unchanged, we need another reflection to put the figure into its final position. A suitable alternate sequence for mapping ABCD to A'B'C'D' is ...
- reflection across the line y=x
- reflection across the line x=-1
Answer: <em>This quadratic equation has two real solutions.</em>
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Step-by-step explanation: