Convert to:
42 4 168
---- x ---- = ------
1 7 7
Answer:
x=6
Step-by-step explanation:
Since y=7 when x=2, we can from here simplify and see that y=3.5 when x=1. If y=21, then we multiply 7 by 3 which is 21, and since we must keep a proportion, we must multiply 2 by 3 and get 6 as the answer.
1) 2.92• 10^-3 2) 2.16•10^7. 3)7.5•10^8
I can't really see those. Sorry I can't help you
Ohhh, look at this...
The square root of (2 x 2) is 2 .
The square root of (5 x 5) is 5 .
The square root of (7 x 7) is 7 .
So the square root of (2x2) x (5x5) x (7x7) is (2 x 5 x 7) = <em><u>70</u></em>.
(It could also be -70, for reasons that we don't have to mess with right now.)
