Answer: option B. 2/11
Explanation:
1)
number of positive outcomes
Probability = ------------------------------------------
number of possible outcomes
2) Number of positive outcomes:
The positive outcome is choosing a T, given that there are two Ts, the number of positive outcomes is 2.
3) Number of possible outcomes
There are 11 letters, so the number of total outcomes is 11.
4) Therefore,
2
probability = ------
11
multiply the amount of one piece with the number of pieces
1.85×8=14.8
1. 4
2. 8
These are the only possible answers
Answer:
5.54 miles
Step-by-step explanation:
1. Assume she runs up to a point that is x miles to the east of the coral reef:
distance running =
distance swimming =
2. Times:
time= distance / speed
time running =
time swimming =
3. Total time
time running + time swimming:
4. Minimize time
The minimum time is when the derivative of the function of time is zero.
Find the derivative of T(x), using rule of the sum, the derivative of the sum is the sum of the derivatives, and the chain rule:
Solve for x:
5. Distance the visitor should run to minimize the time
Hence, the visitor should run 5.54 miles.
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Move a2 to the left side of the equation so you have c2-a2. then divide by 2 to get b by itself. you are left with c2-a2 all over 2. the 2s will cancel and you'll be left with c-a=b