Answer:
x + 10 = x² + 1
(third option listed)
Step-by-step explanation:
assuming that you meant: 
, because otherwise there would be no equivalent relationships,
(goal: isolate x on one side of the equation whilst having x on the other side of the equation also, like the equation in the question)*
x + 10 = x² + 1
-1 -1
x + 10 - 1 = x²
[find √ of both sides to isolate x]
(equation in problem)
{note: there's no reason to not simplify the equation to 
, but the question leaves the equation that way, so I didn't simplify it either}
*I used this goal to decide which equations seemed about right, and then trying to test things out in my head
10 : 90; 10÷10= 1; 90÷10= 9; 1:9 or 1/9
Hope this helps
First of all, assuming that the "ground level" is 0;
The lift is not starting from 0, so we also need to account for the extra 15 meters above the ground the lift is.
The total distance the lift would cover in the downward direction: 15+350=365m
Now, you know that the lift covers 5 m/min
Therefore, 5x=365 (ignoring units because they can complicate things)
x=365/5
x=73 minutes
Therefore, they would take 73 minutes to reach 350 m deep into the ground with a starting position 15 m above the ground.
Hope I helped :)
Answer:
yes it does
Step-by-step explanation:
as you can see,
in a function, we don't have more than one y for a x, so here we have one y for each x. then it is
Answer:
A) JK and LM will be parallel to each other.
Step-by-step explanation:
On reflection on 
line the x co-ordinate changes with y co-ordinate and y co-ordinate changes with x co-ordinate
Points on line EF
On reflection of this line on the new points we get for line JK are
Points on line GH
On reflection on y=x line the new points we get for line LM are
Slope of line JK
Slope of line LM
For two line to be parallel, their slopes will be same.
Since slopes of lines JK and LM are same therefore we can say that these are parallel to each other.
