Answer:
A
Step-by-step explanation:
sqrt(x) ≤1
Square each side
x ≤1
But we have to look at the limit on the square root
We know that square root must be greater than or equal to zero so x ≥0
0 ≤x ≤1
Answer:
such strips of 
can be cut and 
would be left over.
Step-by-step explanation:
Given is
length of a wire.
We have to cut strips of
If we factorize 
We get full and 
and 
Similarly , if we factorize 
We get full 
and another 
would be left.
Answer:
u = 2.5
Step-by-step explanation:
Since you're working with only one variable, you just need to solve for u:
9(u -2) + 1.5u = 8.25
Multiply the parentheses by 9
9u - 18 +1.5u = 8.25
Add the similar values
10.5u = 8.25 + 18
Simplify
10.5u = 26.25
u = 26.25/10.5
u = 2.5
