Answer:
HL
Step-by-step explanation:
The two <em>hypotenuses</em> of these right triangles are marked congruent, and the <em>leg</em> QS is shared, hence congruent.
The HL theorem applies.
Answer:
Step-by-step explanation:
The directrix given to us has equation,
and the focus is 
.
This means that the axis of symmetry of the parabola is parallel to the y-axis and has equation 
, because it must go through the focus.
This axis of symmetry of the parabola will meet the directrix at 
.
The vertex of this parabola is the midpoint of the point of intersection of the axis of symmetry and the focus.
Thus,
.
The equation is given by 
.
.
is the distance between the vertex and the focus, which is 2.
This implies that,
or 
But the position of the directrix and the vertex implies that the parabola opens downwards.
.
The equation of the parabola now becomes;
.
We solve for y to obtain,
or
<span>1 83/100
One is the whole number, and 83/100 is the fraction</span>
You have to know how the value of one unit corresponds to the value of the other unit. For example you have to know that there are 100 cm in 1 m or 1000 m in 1 km. It's easy in metric measurement system because it's all about multiplying/dividing by 10 or its multiplications. But in American/English system you just have to learn the values.
For example:
1 km = 1000 m = 10000 dm = 100000 cm = 1000000 mm
But:
1 mile = 1760 yards = 5280 feet = 63360 inches
