Answer:
√119
Step-by-step explanation:
By pythagoras theorem:
x² = 12² - 5²
x² = 144 - 25
x² = 119
x = √119
The answer is D
you have to multiply 5 and 12 by the power of 2. 5 x 5=25 12 x 12=144 add them and it equals 169 then you have too divide it by the thing of 2 and it equals x=13
k=-13