Answer:
A
Step-by-step explanation:
Using Pythagoras theorem, we have
x^2+11^2=15^2, x^2=104, x=2*sqrt(26)
Answer:
50% decrease
Step-by-step explanation:
it would be a 50% decrease because half of 8 is 4 and 1/2 is 50 %.
Simplified answer would be 60k^2+k
and you get that answer by combining like terms, Good Luck!
Answer:
the answer is 250 million years
Step-by-step explanation: