Answer: The last one is right
Step-by-step explanation: I used photomath, its an app to help with stuff like this. I put in each answer, it showed me a graph for each one, the last one is closest to the graph you have shown.
Answer:
120.
Step-by-step explanation:
Using the Pythagoras theorem:
(30√2)^2 = x^2 + x^2 where x =length of each side of the square
1800 = 2x^2
x^2 = 900
x = 30.
So the perimeter = 4*30 = 120.
Answer:
B if it's not right
sorry :(
Step-by-step explanation:
What I do is to add up the hundreds and tens in my mind first:
130 + 90 + 160 = 380
and then add the small change:
7.50 + 2.50 + 2.50 = 12.50
and add it back to the first amount
392.50
