Answer:
a. r is rational; r² is rational
b. r is rational; r² is rational
Answer:
because its 2021
Step-by-step explanation:
Yehhh
Answer:
X = -5
Y = 0
Step-by-step explanation:
Answer:
Step-by-step explanation:
As each step has the same depth and rise, they are respectively 1.2/4=0.3m and 1.8/4=0.45m.
Dividing the steps along the dotted lines, the total rise of the 4 concrete steps = (1+2+3+4)*0.45
= 4.5m
Total concrete volume = total rise * depth * width
= 4.5*0.3*1.8
= 2.43m^3
Sorry if im to late but these were the right answers
