Mathematics, 22.07.2020 01:01 elissiashontelbrown
Read Explain 3 Parts A and B and complete Your Turn #8 below (adapted from Lesson 6.1).
8.
According to the data from the U. S. Census Bureau for 1990-2009, the number of
commercially owned automobiles in the United States can be modeled by the function
A(x) = 1.4x – 130.6x² + 1831.3x + 128,141, where x is the number of years after 1990
and A(x) is the number of automobiles in thousands. The number of privately-owned
automobiles in the United States can be modeled by the function
P(x) = -x + 24.9x² – 177.9x + 1709.5, where x is the number of years after 1990 and
P(x) is the number of automobiles in thousands. Estimate the total number of automobiles
owned in 2005.
Answers: 2
Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
Mathematics, 22.06.2019 04:00
Look at the figure xyz in the coordinate plane. find the perimeter of the figure rounded to the nearest tenth.
Answers: 2
Read Explain 3 Parts A and B and complete Your Turn #8 below (adapted from Lesson 6.1).
8.
Ac...
Ac...
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