Answer:
<h2>2√14</h2>
Step-by-step explanation:
ΔSQR and ΔTSR are similar. Therefore the sides are in proportion:
We have:
SR = q
QR = 10 + 4 = 14
TR = 4
Substitute:
<em>cross multiply</em>
7 x 2/15
7 x 2 = 14
14/15 is your answer
hope this helps
Check the picture below. So the parabola looks more or less like so.
let's recall that the vertex is half-way between the focus point and the directrix, at "p" units away from both.
Let's notice that the focus point is below the directrix, that means the parabola is vertical, namely the squared variable is the "x", and it also means that it's opening downwards as you see in the picture, namely that "p" is negative, in this case "p" is 1 unit, and thus is -1.
Melissa will need 1.5 gallons of blue paint for each gallon of yellow paint.
This is a relation but not a function.
Functions must have that there is a unique y for a given x, which clearly doesn't work here because all lines of a given x have 2 y-values. However, it is a relation because there is a given set of points which are defined to be within the set of the ellipse (if it's defined which members of two sets, the range and domain, go together, then you have a relation)