The correct answer is C
(X-5)²+(Y-7)²=50
Here, hope you can understand it lol
Answer:
1
Step-by-step explanation:
(-2)+3 can be rewritten as 3 - 2
You're not dumb, your learning. Here's some advice; it is better to ask a question and look dumb for 10 seconds than it is to never ask and wonder for ever.
Good luck in your future study endeavors :)
Answer: 
Step-by-step explanation:

Remove all those parentheses by multiplying. Note: 2 and 2 cancel out.

Subtract 2x

Combine like terms;

Divide by -3

Rewriting it;

Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The length of the treads is 
The length of the risers is 
Generally the slope of the staircase is

=> 
=> 