Make a scatterplot of the data. Then find an exponential, logarithmic, or logistic function f that best models the data. Round function values to the nearest hundredth.
A. Logistic: f(x) = 
B. Logarithmic: f(x) = 1.29 + 5.19 ln x
C. Logistic: f(x) = 
D. Logarithmic: f(x) = 1.39 + 4.86 ln x
Answer: D
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -6 and x = 6. The cross sections perpendicular to the x-axis between these planes are squares whose diagonals run from the semicircle y = - 
to the semicircle y = 
.
A. 
B. 
C. 1152
D. 576
In a series RC circuit, i leads e by 50ø. Find the value of i when e = 0 v and i = 15 mA sin ¦ t.
a. 11.49 mA b. 9.6 mA c. 0 d. -9.4 mA e. -11.49 mA
Solve the problem.In how many ways can you answer the questions on an exam that consists of 7 multiple choice questions, each of which has 3 answer choices?
A. 3027 B. 2187 C. 1957 D. 343
Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.
A. 
B. 72y(y + 6)
C. 
D. 