Answer:
12cm^2
Step-by-step explanation:
1/2 x diagonal x diagonal
Answer:
I might be wrong, but I'll help anyway.
Step-by-step explanation:
The is either 2700 or 640.
Answer:
x = 44
Step-by-step explanation:
sqrt(x+5) -3 =4
Add 3 to each side
sqrt(x+5) -3+3 =4+3
sqrt(x+5) =7
Square each side
(sqrt(x+5))^2 =7^2
x+5 = 49
Subtract 5 from each side
x+5-5 = 49-5
x=44
The first step would be to add 3x and 2x i believe but I am not sure
This number would be 24. So 21 own football boots, 16 own a football and there are 24 children in the class. not good at math so yeah