Answer:
12 pens are defective
Step-by-step explanation:
Hope this helps :)
see explanation
Under a reflection in the x- axis
a point (x, y ) → (x, - y ) , then
D (- 5, - 4 ) → D' (- 5, 4 )
E (- 5, - 2 ) → E' (- 5, 2 )
F (- 1, - 2 ) → F' (- 1, 2 )
G (- 1, - 4 ) → G' (- 1, 4 )
Hope this helps!
np
3.14(rs + r2)
3.14 (r= 2 x s= 3 + r =2 x 2)
3.14 ( 6+4)
3.14 (10)
3.14 x 10 = 31.4 units ² I guess
x = 10
y = 2x + 1
21 = 2x + 1
21 - 1 = 2x
2x = 20
