Answer:
256
Step-by-step explanation:
256 is 16 squared.
225 is 15 and 289 is 17.
Answer: 21n + 70= 21n plus 70
Step-by-step explanation:
step by step explanation the n is 21 plus 70 plus then you have to do equals on the sign 21n in the box where it says n add 21 then add 70 and then add a = sign and your done
Answer:
5/2, 4/5 are terminating decimals
Step-by-step explanation:
5/2 = 2.5 this is a terminating decimal
4/5 = .8 this is a terminating decimal
2/7 = .285714(repeating) This is a repeating decimal
4/3 = 1.3(repeating) this is a repeating decimal
Answer: 40
Step-by-step explanation:
second train leaves 40 minutes after
The equestion is
2x^2-5x-12=0
we can either try to factor, or use quadratic formula
trial and errot
(x-4)(2x+3)=0
set to zero
x-4=0
x=4
2x+3=0
2x=-3
x=-3/2
x=-3/2 or 4
