Answer:
It would be unusual to get 4 or more questions correct by guessing alone.
Step-by-step explanation:
You have a 1 in 3 probability(there are three choices) of guessing the correct answer for a single question. You have 12 opportunities to guess.
So, the probability will be = = 4
Therefore, it would be unusual to get 4 or more questions correct by guessing alone.
So it seems to me that you just have to figure our how many minutes it would take for Curtis to ride 6+3=9, so 9 miles. If it takes him one hour to ride 12 miles, how many minutes would it take for him to ride 9? so, 60/12 is equal to x/9, and solve. If you cross multiply and solve, you will get x=45, therefore it takes Curtis 45 minutes to ride 9 miles.
C.4 ounces is the correct answer
My reasoning - 16 ounces in a lb
Answer:
(S-2πr^2)/ 2πr = h
Step-by-step explanation:
S = 2πrh + 2πr^2
Subtract 2 pi r^2 from each side
S-2πr^2 = 2πrh + 2πr^2 -2πr^2
S-2πr^2 = 2πrh
Divide each side by 2 pi r
(S-2πr^2)/ 2πr = 2πrh/2πr
(S-2πr^2)/ 2πr = h