The "forgetting curve" for memorizing nonsense syllables is given by equation below, where R is the percentage who remember the syllables after t seconds.
?
, 
?
In how many seconds would only 10% 
of the students remember? Round your answer to the nearest second.
?
Solve for the exact value of t in terms of R.
What will be an ideal response?
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Express the given logarithm as a sum and/or difference of logarithms. Simplify, if possible. Assume that all variables represent positive real numbers.log17
A. 
log1713 - 2 log17n - 2 log17m
B. log1713 - log17n - log17m
C. 4 log1713 - 2 log17n - log174
D. 
log1713 - 2 log17n - log17m
Provide an appropriate response.Consider the following counting problem. How many different sequences of 3 letters can be formed using the letters 
if repetition is allowed? To solve this problem which of the following rules would you use?
A. Both the permutations rule and the fundamental counting principle B. The fundamental counting principle only C. The combinations rule only D. The permutations rule only
Complete the syllogism so that it is valid and the conclusion is true. Answers may vary.No animal raised as a pet has been successfully reintroduced into the wild.Some animals born in captivity have been successfully reintroduced into the wild.?
What will be an ideal response?
Calculate the arc length of the indicated portion of the curve r(t).r(t) = (7 + 2t2)i + (2t2 - 5)j + (5 - t2)k, -1 ? t ? 4
A. 51 B. 153 C. 135 D. 45