Answer:
A rectangle has rotational symmetry of order 2.
Step-by-step explanation:
The rotational symmetry involves rotation.
The rotational symmetry of order is the number of times a shape is mapped onto itself during a 360° rotation.
A rectangle has rotational symmetry of order 2.
When a rectangle is rotated on 180° or 360° it is mapped onto itself.
Answer:
E
Step-by-step explanation:
using the rule of radicals
× ⇔ , hence
= = × × [ = i]
= 2i → E
Part A: To find the amount of the discount multiply the regular price by the amount of the discount:
80 x 20% = 80 x 0.20 = 16
The discount is $16
Part B:
20% off means she would be paying 80% of the original price ( 100% - 20% = 80%)
Multiply the regular price by 80%:
120 x 80% = 120 x 0.80 = 96
She will pay $96
Part A: Connor is wrong, this is because the inequality 9x<27 means that 9x is LESS than 27. For example, if x was 17, it would mean 9 times 17 (153) which is WAAAY more than 27. Connor's statement is nonsense.
Part B: x could equal 2 or less. This is because anything over 2 will not fit with the inequality. (if x was 3 that would make it equal to 27 and that won't be right). 9 times 2 is 18 which is less than 27, so is 1 and so on :)