Answer:
a =7.5
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2+ b^2 = c^2 where a and b are the legs and c is the hypotenuse
a^2 + 10 ^2 = 12.5^2
a^2 + 100 =156.25
Subtract 100 from each side
a^2 = 56.25
Take the square root of each side
sqrt(a^2) = sqrt( 56.25)
a =7.5
Miles? I'm not sure that it'd be km (unless its not an american airline)
Answer:
addition prop of equality
Step-by-step explanation:
youre welcome
Answer:

Step-by-step explanation:

The answer is B.
Whatever the x value is you have to add 9 to it.