Answer:
see explanation
Step-by-step explanation:
Under a reflection in the line y = x
a point (x, y ) → (y, x ) , then
P (- 4, - 3 ) → P' (- 3, - 4 )
Q (- 2, 3 ) → Q' (3, - 2 )
R (7, 3 ) → R' (3, 7 )
1/15
You have a 1/3 chance of being an elf.
You have a 1/5 change of having the magic tool.
1/3 × 1/5 = 1×1/3×5 = 1/15
b
10
Given: 20 yards of ribbon in total. Need to make 2 yards each.
To find out how many yards you need to cut, divide:
20 / 2 = 10
So, you need to make 10 cuts for the 20 yards.
Hope this helped.
∠2
Complementary angles are angles that add up to 90°
So ∠3 + ∠2 = 90°
