U.S. patents. The number of applications for patents, N , grew dramatically in recent years, with growth averaging about 5.8% per year. That is, N ' ( t ) = 0.058 N ( t ) . ( Source : Based on data from the U.S. Patent and Trademark office, 2009–2013.) a. Find the function that satisfies the equation. Assume that t = 0 corresponds to 2009, when approximately 483,000 patent applications were received. b. Estimate the number of patent applications in 2020. c. Estimate the doubling time for N ( t ) .
U.S. patents. The number of applications for patents, N , grew dramatically in recent years, with growth averaging about 5.8% per year. That is, N ' ( t ) = 0.058 N ( t ) . ( Source : Based on data from the U.S. Patent and Trademark office, 2009–2013.) a. Find the function that satisfies the equation. Assume that t = 0 corresponds to 2009, when approximately 483,000 patent applications were received. b. Estimate the number of patent applications in 2020. c. Estimate the doubling time for N ( t ) .
U.S. patents. The number of applications for patents, N, grew dramatically in recent years, with growth averaging about 5.8% per year. That is,
N
'
(
t
)
=
0.058
N
(
t
)
.
(Source: Based on data from the U.S. Patent and Trademark office, 2009–2013.)
a. Find the function that satisfies the equation. Assume that
t
=
0
corresponds to 2009, when approximately 483,000 patent applications were received.
b. Estimate the number of patent applications in 2020.
Births to Unmarried Mothers The percent of livebirths to unmarried mothers for the years 1970–2007can be modeled by the logistic functiony = 44.742/1 + 6.870e-0.0782xwhere x is the number of years after 1960.a. Use this model to estimate the percent in 1990 andin 1996.b. What is the upper limit of the percent of teenmothers who were unmarried, according to thismodel?
Exer. 31-32: Find an exponential function of the form
f(x) = ba-* + c that has the given horizontal asymptote and
y-intercept and passes through point P.
31 y = 32; y-intercept 212; P(2, 112)
32 y = 72; y-intercept 425; P(1, 248.5)
3.
The Hershey Company is the largest US producer of chocolate. In 2017, annual net
sales were 7.986 billion dollars and were increasing at a continuous rate of 2.7% per year.
Write a formula for annual net sales, S, as a function of time, t, in years since 2017.
a.
b
In what year are sales predicted to reach 11 billion dollars?
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.