Answer:
Step-by-step explanation iii ran out of answers ☹️
Answer:
14,7
Step-by-step explanation:
Use Pythagorean theorem.
a^2+b^2=c^2
a=√21^2-15^2= √216=14,7
Answer:
a.
Step-by-step explanation:
Answer:
B) 3.22 x 10 to the 16th power
Step-by-step explanation:

Answer:
x=-3 or x=9
(the or doesnt mean anything its just supposed to be there)