The arithmetic mean (or average) of two numbers a and b is a + b m = 2 Note that m is the same distance from a as from b, so a, m, b is an arithmetic sequence. In general, if m1, m2, ..., mk are equally spaced between a and b so that a, m1, m2, ..., mk, b is an arithmetic sequence, then m1, m2, .. ., mk are called k arithmetic means between a and b. (a) Insert two arithmetic means between 15 and 23. a = m1 = m2 = b = (b) Insert three arithmetic means between 15 and 23. a = m1 = m2 = m3 = b =

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section: Chapter Questions
Problem 5T: The second term of a geometric sequence is 14, and the sixth term is 224. Find the nth term. (Assume...
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The arithmetic mean (or average) of two numbers a and b is
a + b
m =
2
Note that m is the same distance from a as from b, so a, m, b is an arithmetic sequence. In general, if m1, m2, .
.., mk are
equally spaced between a and b so that
a, m1, m2,
.., mki b
is an arithmetic sequence, then m1, m2, ·
.., mk are called k arithmetic means between a and b.
(a) Insert two arithmetic means between 15 and 23.
a =
m1
%D
m2 =
b =
(b) Insert three arithmetic means between 15 and 23.
a =
m1
%3D
m2
%D
m3
%D
(c) Suppose a doctor needs to increase a patient's dosage of a certain medicine from 100 mg to 450 mg per day in five
equal steps. How many arithmetic means must be inserted between 100 and 450 to give the progression of daily doses?
arithmetic means
What are these means? (Enter your answers as a comma-separated list.)
I| ||
Transcribed Image Text:The arithmetic mean (or average) of two numbers a and b is a + b m = 2 Note that m is the same distance from a as from b, so a, m, b is an arithmetic sequence. In general, if m1, m2, . .., mk are equally spaced between a and b so that a, m1, m2, .., mki b is an arithmetic sequence, then m1, m2, · .., mk are called k arithmetic means between a and b. (a) Insert two arithmetic means between 15 and 23. a = m1 %D m2 = b = (b) Insert three arithmetic means between 15 and 23. a = m1 %3D m2 %D m3 %D (c) Suppose a doctor needs to increase a patient's dosage of a certain medicine from 100 mg to 450 mg per day in five equal steps. How many arithmetic means must be inserted between 100 and 450 to give the progression of daily doses? arithmetic means What are these means? (Enter your answers as a comma-separated list.) I| ||
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