<span> The triangle seems to be a scalene triangle because all three of its sides are different. </span>
X,y is 5(5y,-2y) and 5(y-2)
The race is 3 miles.
21 minutes divided by 7mph (miles per hour)= 3 miles
The wingspan is 36 m.
Using a proportion to solve this, we write the scale factor as a ratio first: 19/38, since 19 is the size of the model's length and 38 is the real length. For the second ratio, we have 18 for the size of the model wingspan and x for the real wingspan:
19/38 = 18/x
Cross multiply:
19*x = 38*18
19x = 684
Divide both sides by 19:
19x/19 = 684/19
x = 36 m
