Answer:
15 to the negative 7th
Step-by-step explanation:
1/15^7
15 to the negative 7th
Answer:
10 seconds.
Step-by-step explanation:
420/42 = x amount of seconds.
It took Lainey 10 seconds.
I would divide 12 by 10 and after doing that, I would get 1.2. Hope this helps!
Step-by-step explanation:
y is directly proportional to x^2.
This means that y = kx^2, where k is a real constant.
When x = 7, y = 245:
245 = k(7)^2 = 49k. By division, k = 5.
Now we know that y = 5x^2, when x = 9, y = 5(9)^2 = 5 * 81 = 405.