At the start of 2010, an online social group had 360 million members. Subsequently, new members joined at a rate of roughly m(t) = −6.6t2 + 16t + 250 million members per year (0 ≤ t ≤ 5), where t is time in years since the start of 2010. (a) Find an expression for the total online social group membership M(t) at time t. HINT [See Example 6.] M(t) = (b) Use the answer to part (a) to estimate the online social group membership midway through 2013. (Round your answer to the nearest 1 million members.) M(3.5) = million members
At the start of 2010, an online social group had 360 million members. Subsequently, new members joined at a rate of roughly m(t) = −6.6t2 + 16t + 250 million members per year (0 ≤ t ≤ 5), where t is time in years since the start of 2010. (a) Find an expression for the total online social group membership M(t) at time t. HINT [See Example 6.] M(t) = (b) Use the answer to part (a) to estimate the online social group membership midway through 2013. (Round your answer to the nearest 1 million members.) M(3.5) = million members
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 64E
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At the start of 2010, an online social group had 360 million members. Subsequently, new members joined at a rate of roughly
m(t) = −6.6t2 + 16t + 250 million members per year (0 ≤ t ≤ 5),
where t is time in years since the start of 2010.
(a) Find an expression for the total online social group membership
(b) Use the answer to part (a) to estimate the online social group membership midway through 2013. (Round your answer to the nearest 1 million members.)
M(t)
at time t. HINT [See Example 6.]M(t) =
(b) Use the answer to part (a) to estimate the online social group membership midway through 2013. (Round your answer to the nearest 1 million members.)
M(3.5) = million members
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