Answer:4y
I got the same answer as the other person but here’s a explanation
Explanation: when subtracting something that’s already a negative it just adds instead, I’ve learned to think of it as looking like a giant plus mark “-(-“ so basically y+3y= 4y
Let one angle be x
Let second angle be 88+x
Sum of two complementary angles = 90°
x+ 88+ x = 90°
2x + 88 = 90
2x = 90 - 88 = 2
x = 2/2 = 1
First angle = x = 1°
Second angle = 88 + x = 88+1 = 89°
I hope it is helpful:D
18a is correct, 18b is incorrect, 18c is correct, 18d is false, 18e is false, 18f is true, 19 is incorrect.
Hall plane , sphere, circular cylinder, cone,plane,circular cylinder
Answer:
I'm not sure but I think it is C.
