April built a model of the F-16 Fighting Falcon that is proportional to the actual F-16 Fighting Falcon. The actual F-16 has a l
2 answers:
Answer:
The wingspan of the model is 0.33 meter.
Step-by-step explanation:
Let as assume that we need to find the wingspan of the model.
The actual F-16 has a length of 14.8 meters and a wingspan that measures 9.8 meters.
It is given that length of the model is 0.5 meter.
Let x be the wingspan of the model.
It is given that a model of the F-16 Fighting Falcon that is proportional to the actual F-16 Fighting Falcon.
On cross multiplication we get
Divide both sides by 14.8.
Therefore, the wingspan of the model is 0.33 meter.
You might be interested in
Answer:
Step-by-step explanation:
This is a third degree polynomial because we are given three roots to multiply together to get it. Even though we only see "2 + i" the conjugate rule tells us that 2 - i MUST also be a root. Thus, the 3 roots are x = -4, x = 2 + i, x = 2 - i.
Setting those up as factors looks like this (keep in mind that the standard form for the imaginary unit in factor form is ALWAYS "x -"):
If x = -4, then the factor is (x + 4)
If x = 2 + i, then the factor is (x - (2 + i)) which simplifies to (x - 2 - i)
If x = 2 - i, then the factor is (x - (2 - i)) which simplifies to (x - 2 + i)
Now we can FOIL all three of those together, starting with the 2 imaginary factors first (it's just easier that way!):
(x - 2 - i)(x - 2 + i) =
Combining like terms and canceling out the things that cancel out leaves us with:
Remembr that , so we can rewrite that as
and
That's the product of the 2 imaginary factors. Now we need to FOIL in the real factor:
That product is
which simplifies down to
And there you go!