Answer: 1:2
Step-by-step explanation: if she sleeps 8 hours out of 24 hours, 8 goes into 24, 3 times so 1 to 2 ratio because you subtract the time she is awake from the time she is asleep
Answer:
4/5 is greater
Step-by-step explanation:
If you divide x by y you get 4.5.
y = [<u>4.5</u>]x
Answer:
{0, 4 and -3}
Step-by-step explanation:
f(x)=x^3-x^2-12x can be factored, starting by taking out the 'x' factor:
f(x)=x^3-x^2-12x = x(x^2 - x - 12), and then by factoring the quadratic:
f(x) = x(x - 4)(x + 3) = 0
Then the zeros are {0, 4 and -3}.
Answer:
391, and 98
Step-by-step explanation:
Plug in 20 where t appears:
621 (0.5)^20/30 = 621 x 0.62996 = 391.205
Rounded to 391
Plug in 80 where t appears:
621 (0.5)^80/30 = 621 x 0.6667 = 97.8
Rounded to 98