Answer:
.
Step-by-step explanation:
The given conic has equation;
Divide through by 9.
.
This is an ellipse centered at the origin;
This ellipse has been translated so that the center is now at;
The translated ellipse has equation;
.
Clear the fraction;
.
Expand;
.
.
Write in general form;
.
.
The correct choice is D
A number (we don’t know the number so I’ll use X) plus five. So we can start the equation of with X+5 then divided by 3=7 so X+5➗3=7 so to solve what X is we can just go in reverse. 7 TIMES 3= 21-5=16 so X=16
If the number is between 25 and 35 It would have to be either 28 or 32.
We have the representation of this problem in the figure below. As we have a 10.3 mile race, then the equation is fulfilled as:
We know that there is <span>a water station that is twice as far from the starting line as from the finish line, then:
</span>
So:
∴
and
<span>Finally, the distance of the runner from the finish line is:
</span>
