Answer:
1(20-x)
Step-by-step explanation:
let the number of correct answers be x
so wrong will be 20-x
1 mark cancelled from each question
therefore,
1(20-x) will be the answer
I don’t know (was this a joke)
Answer:
-4/3
Step-by-step explanation:
Answer:
The image of the point is (1, 2)
Step-by-step explanation:
- If the point (x, y) rotated about the origin by angle 90° counterclockwise, then its image is (-y, x)
- If the point (x, y) rotated about the origin by angle 180° counterclockwise, then its image is (-x, -y)
- If the point (x, y) rotated about the origin by angle 270° counterclockwise, then its image is (y, -x)
Let us use the rules above to solve the question
∵ The point (-1, -2) is rotated 180° counterclockwise about the origin
→ By using the 2nd rule above change the signs of x and y coordinates
∴ Its image is (1, 2)
∴ The image of the point is (1, 2)
15,000
3 multiplied by 5,000 is 15,000