Answer:
B
Step-by-step explanation:
Number A is wrong because 180-20-65 does not equal 90
Number B is right because x is equal to 180-90-65 which does not equal 90
We do not have to consider any more.
Step-by-step explanation:
![\tan(67) = \frac{x}{7} \\ 2.355852366 = \frac{x}{7} \\ x = 16.49 = 16.5](https://tex.z-dn.net/?f=%20%5Ctan%2867%29%20%20%3D%20%20%5Cfrac%7Bx%7D%7B7%7D%20%20%5C%5C%202.355852366%20%3D%20%20%5Cfrac%7Bx%7D%7B7%7D%20%20%5C%5C%20x%20%3D%2016.49%20%3D%2016.5)
Good night from Canada!
Let x represent the unknown sum of a number.
The answer is: x+7
53
![\leq](https://tex.z-dn.net/?f=%20%5Cleq)
represents less than or equal to, which is the same as no more than, just in different wording.
Hope this helps!
So, first, what are the two sides?
let's call then x and y
we know that 2(x+y)=12.5 (that's the distance around)
so that means that x+y=6.25 (I just divided both by 2)
now, x=4y (from "4 times as long as it is wide")
so we can substitute:
x+4x=6.25
5x=6.25
x=1.25
so one side, is 1.25 and the other will be 1.25*4=5
and for the area we multiply the two:
1.25*5=6.25 square kilometers, and this is the answer!