Answer
no number from the following list can be expressed as the sum of three squares: 7, 15, 23, 31, 39, 47, ect... so only once
Step-by-step explanation:
nono dont touch me there this is my nono square
Hey!
Let's write the problem.

Add like terms...

Add

to both sides.


Divide both sides by

.

Our final answer would be,

Thanks!
-TetraFish
m angle 6= 210
I'm not sure about this question
Answer:
(b) 1:9
(c) 1:8
Step-by-step explanation:
(b) x*y : kx*ky, so 1:k² with k=3 is 1:9
(c) Assuming the rectangles get a z dimension, the volumes would have a ratio of xyz : xkykzk = xyz : xyzk³ = 1 : k³. With k=2 that is 1:8. But the z was never introduced so this is a bit inconclusive.
Answer:
I believe it would be 4 meters in one second
Step-by-step explanation:
I think this because you would divide meters by time.